ðẠI HỌC QUỐC GIA HÀ NỘI TRƯỜNG ðẠI HỌC KHOA HỌC TỰ NHIÊN - NGUYỄN TIẾN QUÂN NGHIÊN CỨU ỨNG DỤNG CHÙM BỨC XẠ PHOTON VÀ ELECTRON TRÊN MÁY GIA TỐC LINAC PRIMUS TRONG XẠ TRỊ UNG THƯ TẠI BỆNH VIỆN K LUẬN VĂN THẠC SĨ KHOA HỌC Hà Nội – Năm 2014 i ðẠI HỌC QUỐC GIA HÀ NỘI TRƯỜNG ðẠI HỌC KHOA HỌC TỰ NHIÊN - NGUYỄN TIẾN QUÂN NGHIÊN CỨU ỨNG DỤNG CHÙM BỨC XẠ PHOTON VÀ ELECTRON TRÊN MÁY GIA TỐC LINAC PRIMUS TRONG XẠ TRỊ UNG THƯ TẠI BỆNH VIỆN K Chuyên ngành: Vật lý nguyên tử, hạt nhân lượng cao Mã số: 60440106 LUẬN VĂN THẠC SĨ KHOA HỌC NGƯỜI HƯỚNG DẪN KHOA HỌC: TS ðÀM NGUYÊN BÌNH Hà Nội – Năm 2014 ii LỜI CAM ðOAN Tên Nguyễn Tiến Quân, học viên cao học chuyên ngành Vật lý nguyên tử, hạt nhân lượng cao, khoá 2011-2013 hệ cao học tập trung, trường ðH Khoa học Tự nhiên, ðH Quốc gia Hà Nội Tơi xin cam đoan luận văn thạc sĩ ‘‘Nghiên cứu ứng dụng chùm xạ photon electron máy gia tốc Linac Primus xạ trị ung thư bệnh viện K’’ công trình nghiên cứu riêng tơi, số liệu kết nghiên cứu trung thực chưa ñược cơng bố cơng trình khác Học viên NGUYỄN TIẾN QUÂN i LỜI CÁM ƠN Trong q trình học tập, cơng tác, thời gian làm luận văn, nhận nhiều quan tâm, động viên giúp đỡ tơi để hồn thành luận văn Qua tơi xin gửi lời cảm ơn chân thành sâu sắc tới: Ts ðàm Nguyên Bình, người hướng dẫn mặt khoa học ñóng góp quý báu cho luận văn này; Thầy PGS.TS Bùi Văn Lốt, người hướng tơi vào nghề kỹ sư vật lý xạ trị, thầy ln tạo điều kiện thuận lợi, bảo tận tình suốt trình học tập từ đại học tới bậc học cao đồng thời thầy người hướng dẫn tơi làm khoá luận tốt nghiệp; Thầy ThS Nguyễn Xuân Kử, nguyên trưởng khoa Vật lý xạ trị - Bệnh viện K, người hướng dẫn khóa luận tốt nghiệp nhận tơi làm việc khoa Thầy tận tình hướng dẫn, bảo, tạo điều kiện cho tơi cơng việc nghề nghiệp; Ks Lê Văn Tình trưởng khoa ñồng nghiệp khoa Vật lý xạ trị - Bệnh viện K, giúp đỡ tơi cơng việc thực nghiệm cho luận văn; Các thầy cô Khoa Vật lý Trường ðại học Khoa học Tự nhiên; Trung tâm Vật lý Hạt nhân Viện Vật lý; Viện Năng lượng nguyên tử Việt Nam suốt năm học tập ñại học cao học, trang bị cho tơi kiến thức cần thiết, ñược tạo ñiều kiện thuận lợi học tập công tác Cuối cùng, xin gửi lời cảm ơn tới gia đình bạn bè, người ln bên cạnh tơi, giúp đỡ, động viên, khuyến khích tơi hồn cảnh ii MỤC LỤC DANH MỤC BẢNG BIỂU iii DANH MỤC HÌNH VẼ iv DANH MỤC HÌNH VẼ iv DANH MỤC CÁC KÝ HIỆU VÀ CÁC CHỮ VIẾT TẮT vii MỞ ðẦU CHƯƠNG TỔNG QUAN CƠ SỞ LÝ THUYẾT CỦA PHƯƠNG PHÁP XẠ TRỊ UNG THƯ 1.1 Cơ sở vật lý 1.1.1 Tương tác xạ photon electron với vật chất 1.1.2 Giới thiệu liều lượng xạ trị 1.1.3 Một số khái niệm vật lý xạ trị vùng thể tích liên quan 15 1.2 Sinh lý học khối u 19 1.2.1 Chu kỳ tế bào 19 1.2.2 Các mơ hình tăng sinh 21 1.2.3 Sự phát triển khối u 22 1.3.1 Tác dụng sinh học xạ 23 1.3.2 Cơ sở phân liều lượng theo thời gian 25 1.3.3 Cơ sở ñáp ứng tế bào 27 CHƯƠNG ðỐI TƯỢNG NGHIÊN CỨU VÀ PHƯƠNG PHÁP THỰC NGHIỆM 29 2.1 Cấu tạo nguyên lý hoạt ñộng máy gia tốc thẳng Primus- Siemens 29 2.1.1 Cấu tạo máy gia tốc thẳng 29 2.1.2 Nguyên lý hoạt ñộng 31 2.1.3 Thông số kỹ thuật máy gia tốc thẳng PRIMUS- Siemens 32 2.2 Các thiết bị đo liều mơ hình hóa thực nghiệm 34 2.2.1 Hệ thống đo liều lượng 34 2.2.2 Bố trí hình học đo 38 2.2.3 Phương pháp chỉnh tia lazer xác ñịnh tâm ño 40 i 2.3 Phương pháp xác ñịnh ñặc trưng chùm xạ photon, electron 40 2.3.1 Phân bố liều sâu phần trăm 40 2.3.2 Phân bố liều sâu cách tâm 47 2.3.3 Tiêu chuẩn số thơng số đặc trưng 51 CHƯƠNG 53 KẾT QUẢ THỰC NGHIỆM VÀ THẢO LUẬN 53 3.1 ðặc trưng chùm photon máy gia tốc Linac Primus 53 3.1.1 Phân bố liều sâu phần trăm chùm photon 53 3.1.2 Phân bố liều sâu cách tâm chùm photon 57 3.2 ðặc trưng chùm electron máy gia tốc Linac Primus 61 3.2.1 Phân bố liều sâu phần trăm 61 3.2.2 Phân bố liều sâu cách tâm 64 3.3 Lập kế hoạch xạ trị số bệnh ung thư phổ biến 67 3.3.1 Ung thư vòm họng 67 3.3.2 Ung thư phổi 71 3.3.3 Ung thu vú 74 KẾT LUẬN 77 TÀI LIỆU THAM KHẢO 79 PHỤ LỤC 81 ii DANH MỤC BẢNG BIỂU Bảng 1.1: Tóm tắt khác khối u lành tính ác tính .22 Bảng 2.1: ðộ sâu liều hấp thụ cực ñại zmax cho chùm photon có lượng khác với kích thước trường chiếu × cm 42 Bảng 2.2: Xác ñịnh số thông số ñộ sâu liều lượng, lượng trung bình bề mặt phantom với lượng khác 47 Bảng 2.3: Tiêu chuẩn kỹ thuật hãng Siemens cho Zmax-tc D10-tc 51 Bảng 2.4: Tiêu chuẩn kỹ thuật hãng Siemens cho R80 R30 .52 Bảng 2.5: Tiêu chuẩn kỹ thuật hãng Siemens cho ñộ phẳng chùm eletron 52 Bảng 3.1: Một số thơng số đặc trưng lượng chùm photon 56 Bảng 3.2: ðộ phẳng chùm photon MV .59 Bảng 3.3: ðộ phẳng chùm photon 15 MV .59 Bảng 3.4: Tính đối xứng chùm photon MV 59 Bảng 3.5: Tính đối xứng chùm photon 15 MV 60 Bảng 3.6: Vùng bán photon MV 60 Bảng 3.7: Vùng bán photon 15 MV 60 Bảng 3.8: Một số thơng số đặc trưng lượng chùm electron 9Mev 12 MeV 63 Bảng 3.9: ðộ phẳng chùm electron MeV 65 Bảng 3.10: ðộ phẳng chùm electron 12 MeV 65 Bảng 3.11: Tính đối xứng chùm electron MeV 66 Bảng 3.12: Tính đối xứng chùm electron 12 MeV .66 Bảng 3.13: Vùng bán electron MeV 66 Bảng 3.14: Vùng bán electron 12 MeV 66 iii DANH MỤC HÌNH VẼ Hình 1.1: Mơ hình tượng quang ñiện Hình 1.2: Mơ hình Tán xạ Compton Hình 1.3: Hiện tượng tạo cặp trường Coulomb hạt nhân .5 Hình 1.4: Hệ số suy giảm khối lượng photon tương tác với nước Hình 1.5: ðộ suy giảm lượng electron Hình 1.6: Ngun lý hoạt động buồng ion hóa chứa khí .12 Hình 1.7: Mơ tả điều kiện Bragg-Gray mơi trường nước 13 Hình 1.8: Mơ tả cách tính PDD 15 Hình 1.9: Hình dạng vị trí trục chùm tia 16 Hình 1.10: Sơ đồ chu kỳ tế bào 20 Hình 1.11: Trạng thái tổ chức mơ từ dạng bình thường đến ung thư 21 Hình 1.12: Hàm Gompertz mơ tả đường cong phát triển tế bào 23 Hình 1.13: Mối tương quan tượng hấp thụ tỷ lệ sống sót 25 Hình 1.14: Tương quan khả kiểm soát khối u biến chứng 28 Hình 2.1: Mơ hình máy gia tốc thẳng xạ trị 29 Hình 2.2: ðầu máy điều trị 30 Hình 2.3: Thông số kĩ thuật máy gia tốc .33 Hình 2.4: Các cặp Jaw tạo dạng trường chiếu 33 Hình 2.5: Sơ đồ ghép nối hệ đo với máy tính 34 Hình 2.6: Phantom nước .35 Hình 2.7: Detector Scanditronix / Wellhofer Compact Chamber CC13 .35 Hình 2.8: Cấu tạo buồng ion hóa CC13 .36 Hình 2.9: Hình ảnh máy đo liều MD 240 37 Hình 2.10: Bộ điều khiển dịch chuyển buồng ion hóa CU500E 37 Hình 2.11: Giao diện phần mềm Omnipro-Accepts 38 Hình 2.12: Hình học đo liều xạ phát từ máy gia tốc tuyến tính .38 Hình 2.13: Các applicators (các côn) sử dụng xạ trị 39 Hình 2.14: Tâm khoảng cách 100 cm .40 iv Hình 2.15: Phân bố liều hấp thụ cho chùm photon MV phantom 40 Hình 2.16: ðường PDD nước với kích thước trường chiếu 10 × 10 cm2, khoảng cách SSD 100 cm ứng mức lượng giải từ 60Co ñến 25MV 42 Hình 2.17: PDD nước với kích thước trường 10x10cm2, SSD= 100cm 44 Hình 2.18: Quãng chạy R100, R90, R80, R50, Rp, Rmax 45 Hình 2.19: Các vùng liều phân bố liều sâu cách tâm 47 Hình 2.20: Hình vẽ xác định độ phẳng .48 Hình 2.21: Hình vẽ xác tính đối xứng 49 Hình 2.22: Thành phần truyền qua vùng bán 50 Hình 2.23: Thành phần đối xứng vùng bán 50 Hình 3.1: Phân bố liều sâu phần trăm tương ñối theo bề dày chùm photon MV với kích thước trường chiếu khác 54 Hình 3.2: Phân bố liều sâu phần trăm tương ñối theo bề dày chùm photon 15 MV với kích thước trường chiếu khác 54 Hình 3.3: So sánh đường cong phân bố liều sâu phần trăm tương ñối theo bề dày chùm photon MV 15 MV với trường chiếu 10×10 cm2 56 Hình 3.4: ðồ thị phân bố liều sâu cách tâm chùm photon MV 58 Hình 3.5: ðồ thị phân bố liều sâu cách tâm chùm photon 15 MV 58 Hình 3.6: Phân bố liều sâu phần trăm chùm electron lượng 9MeV 62 Hình 3.7: Phân bố liều sâu phần trăm chùm electron lượng 12 MeV 62 Hình 3.8: ðồ thị phân bố liều sâu cách tâm chùm electron lượng 9MeV 64 Hình 3.9: ðồ thị phân bố liều sâu cách tâm chùm electron lượng 12MeV 65 Hình 3.10: Vị trí vùng vòm họng (Nasophaynx) 67 Hình 3.11: Ví dụ xác định GTV, CTV70, CTV60 ung thư vòm .68 Hình 3.12: Kỹ thuật nửa trường chiếu cho ung thư vòm nâng liều lên 40 Gy 69 Hình 3.13: Kỹ thuật nửa trường chiếu ung thư vòm nâng liều 40Gy lên 50Gy 69 Hình 3.14: Kỹ thuật đồng tâm cho trường vòm nâng liều 50Gy lên 60Gy 70 Hình 3.15: Trường electron bù liều cho vùng che tủy sống (a) tăng liều cho hạch sau chiếu 50 Gy (b) .70 v Hình 3.16: Ví dụ xác định GTV, hạch cho ung thư phổi 72 Hình 3.17: Ví dụ xác định CTV từ GTV cho ung thư phổi 72 Hình 3.18: Phân bố trường chiếu ung thư phổi 73 Hình 3.19: Phân bố trường chiếu vú (a) trường hạch (b) 75 vi 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 13 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 14 0.676 0.672 0.669 0.665 0.66 0.657 0.652 0.647 0.642 0.639 0.635 0.632 0.627 0.622 0.619 0.615 0.611 0.608 0.604 0.601 0.598 0.595 0.591 0.586 0.581 0.578 0.574 0.572 0.568 0.565 0.562 0.558 0.555 0.551 0.548 0.544 0.542 0.538 0.536 0.532 0.528 0.525 0.522 0.519 0.515 0.513 0.509 0.506 0.503 0.501 0.709 0.705 0.702 0.697 0.693 0.689 0.686 0.683 0.679 0.674 0.67 0.667 0.663 0.66 0.656 0.653 0.649 0.645 0.641 0.638 0.636 0.632 0.628 0.624 0.621 0.617 0.614 0.612 0.608 0.604 0.601 0.598 0.595 0.591 0.588 0.584 0.58 0.577 0.574 0.572 0.569 0.566 0.563 0.559 0.556 0.554 0.551 0.547 0.544 0.541 0.728 0.725 0.721 0.718 0.714 0.71 0.706 0.703 0.698 0.695 0.692 0.688 0.684 0.681 0.677 0.674 0.671 0.668 0.664 0.66 0.656 0.652 0.65 0.647 0.644 0.641 0.638 0.635 0.631 0.628 0.625 0.622 0.619 0.616 0.612 0.609 0.605 0.602 0.598 0.596 0.594 0.591 0.589 0.585 0.582 0.579 0.575 0.573 0.57 0.567 0.738 0.734 0.73 0.727 0.723 0.72 0.717 0.714 0.71 0.707 0.703 0.699 0.696 0.692 0.689 0.686 0.682 0.679 0.675 0.672 0.668 0.665 0.662 0.659 0.656 0.653 0.649 0.646 0.643 0.641 0.637 0.634 0.63 0.627 0.624 0.621 0.618 0.615 0.612 0.609 0.606 0.604 0.601 0.598 0.595 0.591 0.588 0.585 0.583 0.581 0.746 0.743 0.741 0.739 0.736 0.733 0.73 0.726 0.723 0.719 0.715 0.712 0.708 0.705 0.702 0.699 0.696 0.693 0.69 0.687 0.684 0.681 0.678 0.674 0.671 0.668 0.666 0.663 0.66 0.657 0.654 0.651 0.648 0.645 0.642 0.639 0.637 0.634 0.63 0.627 0.624 0.622 0.619 0.617 0.615 0.612 0.608 0.605 0.602 0.6 0.755 0.751 0.747 0.744 0.741 0.738 0.735 0.732 0.728 0.725 0.722 0.719 0.716 0.713 0.71 0.707 0.704 0.701 0.697 0.694 0.691 0.689 0.685 0.682 0.679 0.676 0.674 0.671 0.668 0.665 0.662 0.659 0.657 0.654 0.651 0.648 0.645 0.643 0.64 0.637 0.633 0.63 0.627 0.625 0.622 0.619 0.616 0.614 0.611 0.608 83 0.8 0.797 0.793 0.79 0.787 0.784 0.781 0.777 0.774 0.77 0.765 0.76 0.757 0.755 0.752 0.749 0.744 0.741 0.737 0.734 0.731 0.728 0.725 0.721 0.717 0.713 0.71 0.707 0.705 0.704 0.699 0.696 0.692 0.69 0.687 0.683 0.679 0.676 0.674 0.672 0.669 0.665 0.662 0.659 0.658 0.654 0.65 0.647 0.645 0.643 0.811 0.807 0.803 0.799 0.797 0.794 0.79 0.786 0.783 0.779 0.775 0.773 0.769 0.767 0.764 0.761 0.757 0.755 0.751 0.748 0.745 0.742 0.739 0.736 0.732 0.728 0.726 0.723 0.721 0.719 0.715 0.713 0.709 0.705 0.703 0.7 0.697 0.695 0.691 0.689 0.686 0.684 0.681 0.677 0.675 0.671 0.669 0.665 0.662 0.66 0.814 0.811 0.808 0.804 0.8 0.797 0.794 0.792 0.79 0.786 0.782 0.778 0.775 0.774 0.77 0.767 0.763 0.761 0.758 0.756 0.752 0.749 0.746 0.743 0.74 0.737 0.734 0.731 0.728 0.725 0.723 0.72 0.719 0.715 0.712 0.71 0.707 0.704 0.702 0.7 0.697 0.693 0.69 0.687 0.685 0.683 0.68 0.677 0.673 0.671 0.813 0.81 0.807 0.805 0.801 0.796 0.792 0.79 0.787 0.785 0.782 0.78 0.776 0.773 0.77 0.767 0.765 0.763 0.76 0.756 0.753 0.75 0.746 0.744 0.742 0.74 0.735 0.733 0.731 0.73 0.728 0.723 0.721 0.719 0.717 0.713 0.71 0.707 0.704 0.702 0.699 0.697 0.694 0.691 0.689 0.685 0.684 0.681 0.679 0.676 0.815 0.813 0.809 0.807 0.804 0.801 0.798 0.796 0.793 0.789 0.787 0.784 0.78 0.777 0.773 0.771 0.768 0.766 0.763 0.76 0.758 0.755 0.752 0.75 0.747 0.744 0.741 0.739 0.736 0.734 0.732 0.729 0.726 0.723 0.721 0.718 0.715 0.713 0.71 0.707 0.705 0.703 0.699 0.696 0.694 0.692 0.69 0.687 0.685 0.681 0.816 0.814 0.81 0.808 0.805 0.803 0.801 0.797 0.793 0.791 0.789 0.786 0.783 0.78 0.778 0.775 0.772 0.769 0.767 0.765 0.762 0.759 0.756 0.754 0.751 0.748 0.745 0.743 0.74 0.738 0.734 0.731 0.728 0.726 0.724 0.721 0.719 0.716 0.714 0.712 0.709 0.708 0.706 0.703 0.7 0.696 0.694 0.69 0.688 0.685 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 16 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 17 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 18 18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 19 0.498 0.495 0.491 0.489 0.485 0.482 0.479 0.477 0.473 0.471 0.467 0.465 0.462 0.459 0.456 0.453 0.45 0.449 0.447 0.443 0.44 0.437 0.435 0.432 0.43 0.427 0.424 0.421 0.419 0.417 0.414 0.411 0.407 0.406 0.403 0.401 0.399 0.396 0.395 0.393 0.39 0.388 0.385 0.383 0.381 0.378 0.376 0.372 0.37 0.368 0.538 0.535 0.532 0.529 0.527 0.524 0.521 0.518 0.516 0.513 0.51 0.507 0.503 0.499 0.496 0.494 0.491 0.488 0.485 0.482 0.479 0.477 0.474 0.472 0.469 0.467 0.464 0.461 0.459 0.456 0.453 0.45 0.448 0.446 0.443 0.441 0.439 0.437 0.435 0.432 0.428 0.426 0.423 0.421 0.419 0.417 0.415 0.414 0.411 0.409 0.563 0.56 0.557 0.555 0.552 0.549 0.546 0.543 0.541 0.538 0.535 0.531 0.529 0.526 0.524 0.521 0.518 0.515 0.513 0.51 0.507 0.504 0.502 0.498 0.494 0.492 0.489 0.486 0.484 0.481 0.479 0.477 0.474 0.472 0.469 0.467 0.464 0.462 0.459 0.456 0.454 0.451 0.448 0.446 0.444 0.442 0.44 0.438 0.436 0.433 0.578 0.575 0.572 0.569 0.566 0.564 0.561 0.558 0.555 0.552 0.549 0.546 0.543 0.54 0.537 0.534 0.531 0.529 0.527 0.525 0.522 0.519 0.517 0.515 0.513 0.51 0.506 0.504 0.501 0.498 0.495 0.493 0.491 0.489 0.487 0.484 0.481 0.478 0.476 0.474 0.472 0.469 0.467 0.464 0.462 0.46 0.457 0.455 0.453 0.451 0.597 0.594 0.591 0.588 0.586 0.582 0.579 0.575 0.573 0.57 0.568 0.565 0.562 0.559 0.557 0.555 0.553 0.55 0.547 0.545 0.542 0.539 0.537 0.535 0.533 0.53 0.527 0.525 0.522 0.52 0.517 0.515 0.512 0.51 0.507 0.505 0.503 0.5 0.498 0.495 0.493 0.49 0.487 0.485 0.483 0.48 0.478 0.476 0.474 0.471 0.606 0.603 0.601 0.598 0.596 0.593 0.589 0.586 0.584 0.58 0.577 0.575 0.572 0.569 0.566 0.563 0.561 0.558 0.556 0.553 0.551 0.549 0.546 0.543 0.541 0.538 0.536 0.535 0.533 0.53 0.527 0.524 0.521 0.519 0.517 0.515 0.512 0.51 0.507 0.505 0.502 0.5 0.497 0.495 0.493 0.491 0.489 0.486 0.484 0.483 84 0.64 0.636 0.632 0.63 0.627 0.623 0.621 0.619 0.616 0.614 0.612 0.61 0.606 0.603 0.6 0.598 0.595 0.592 0.59 0.587 0.585 0.583 0.581 0.579 0.575 0.573 0.57 0.567 0.564 0.561 0.559 0.557 0.554 0.552 0.551 0.549 0.545 0.542 0.54 0.537 0.535 0.531 0.53 0.527 0.525 0.523 0.521 0.519 0.517 0.514 0.658 0.654 0.652 0.649 0.647 0.644 0.641 0.639 0.637 0.634 0.631 0.628 0.625 0.622 0.619 0.616 0.614 0.612 0.609 0.607 0.605 0.602 0.599 0.596 0.593 0.591 0.59 0.588 0.585 0.582 0.58 0.578 0.575 0.573 0.57 0.568 0.565 0.563 0.559 0.557 0.556 0.554 0.551 0.549 0.547 0.545 0.542 0.541 0.539 0.537 0.668 0.666 0.663 0.66 0.658 0.655 0.652 0.649 0.646 0.645 0.643 0.639 0.637 0.634 0.631 0.629 0.627 0.624 0.622 0.62 0.618 0.615 0.612 0.609 0.607 0.605 0.603 0.601 0.598 0.595 0.592 0.591 0.589 0.586 0.584 0.581 0.578 0.575 0.574 0.573 0.571 0.569 0.568 0.564 0.562 0.559 0.556 0.555 0.552 0.55 0.672 0.669 0.666 0.663 0.662 0.659 0.656 0.653 0.65 0.649 0.647 0.643 0.641 0.64 0.637 0.633 0.63 0.628 0.626 0.625 0.622 0.619 0.616 0.614 0.612 0.61 0.608 0.605 0.602 0.601 0.599 0.596 0.594 0.591 0.589 0.588 0.585 0.583 0.58 0.578 0.576 0.575 0.571 0.57 0.568 0.566 0.563 0.56 0.559 0.557 0.678 0.676 0.674 0.672 0.669 0.666 0.663 0.66 0.658 0.655 0.653 0.651 0.65 0.647 0.643 0.641 0.64 0.637 0.635 0.632 0.63 0.627 0.626 0.624 0.621 0.618 0.616 0.614 0.611 0.608 0.606 0.605 0.603 0.601 0.599 0.596 0.594 0.59 0.589 0.587 0.585 0.583 0.58 0.578 0.576 0.573 0.571 0.569 0.568 0.566 0.683 0.682 0.679 0.676 0.673 0.671 0.668 0.666 0.664 0.661 0.658 0.656 0.654 0.653 0.649 0.647 0.644 0.642 0.64 0.638 0.636 0.632 0.63 0.629 0.626 0.623 0.622 0.618 0.617 0.614 0.613 0.611 0.608 0.606 0.603 0.601 0.6 0.597 0.595 0.593 0.59 0.588 0.587 0.584 0.583 0.581 0.578 0.576 0.575 0.572 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 19.9 20 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8 20.9 21 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 21.9 22 22.1 22.2 22.3 22.4 22.5 22.6 22.7 22.8 22.9 23 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24 0.365 0.363 0.362 0.359 0.357 0.354 0.352 0.35 0.347 0.345 0.344 0.341 0.339 0.336 0.335 0.333 0.33 0.329 0.327 0.324 0.323 0.321 0.318 0.316 0.315 0.312 0.311 0.309 0.307 0.306 0.304 0.303 0.3 0.298 0.297 0.295 0.293 0.291 0.289 0.287 0.285 0.283 0.282 0.28 0.279 0.277 0.275 0.274 0.273 0.27 0.406 0.403 0.4 0.397 0.395 0.393 0.391 0.389 0.387 0.385 0.383 0.38 0.378 0.376 0.374 0.372 0.369 0.367 0.365 0.363 0.361 0.359 0.356 0.354 0.352 0.35 0.348 0.346 0.345 0.343 0.342 0.34 0.338 0.336 0.334 0.332 0.33 0.327 0.325 0.324 0.323 0.321 0.319 0.316 0.314 0.313 0.311 0.309 0.308 0.306 0.431 0.429 0.426 0.424 0.421 0.419 0.417 0.415 0.412 0.41 0.407 0.405 0.403 0.402 0.4 0.397 0.394 0.392 0.39 0.388 0.386 0.384 0.382 0.38 0.378 0.376 0.374 0.372 0.37 0.368 0.366 0.364 0.362 0.36 0.359 0.357 0.355 0.353 0.35 0.348 0.346 0.345 0.343 0.341 0.339 0.337 0.336 0.334 0.333 0.331 0.449 0.446 0.443 0.441 0.438 0.436 0.434 0.432 0.429 0.427 0.425 0.423 0.42 0.418 0.416 0.413 0.411 0.409 0.407 0.405 0.403 0.401 0.399 0.397 0.395 0.392 0.391 0.389 0.387 0.385 0.384 0.382 0.38 0.377 0.375 0.373 0.371 0.369 0.367 0.365 0.363 0.362 0.36 0.358 0.356 0.354 0.353 0.351 0.349 0.347 0.469 0.467 0.465 0.463 0.461 0.459 0.458 0.456 0.453 0.45 0.447 0.445 0.443 0.442 0.44 0.437 0.434 0.431 0.429 0.427 0.425 0.424 0.422 0.419 0.416 0.414 0.412 0.41 0.408 0.407 0.405 0.403 0.401 0.398 0.396 0.394 0.392 0.39 0.388 0.387 0.385 0.383 0.381 0.379 0.377 0.376 0.374 0.372 0.37 0.368 0.481 0.479 0.477 0.474 0.472 0.469 0.467 0.465 0.463 0.46 0.457 0.455 0.453 0.451 0.449 0.448 0.445 0.443 0.44 0.438 0.436 0.434 0.431 0.429 0.427 0.426 0.424 0.421 0.419 0.416 0.414 0.412 0.41 0.408 0.406 0.405 0.403 0.401 0.4 0.398 0.396 0.393 0.391 0.389 0.387 0.386 0.384 0.382 0.381 0.379 85 0.513 0.511 0.509 0.506 0.504 0.5 0.498 0.496 0.494 0.492 0.489 0.488 0.485 0.483 0.481 0.479 0.477 0.475 0.474 0.472 0.468 0.465 0.464 0.462 0.461 0.459 0.458 0.456 0.452 0.45 0.449 0.447 0.445 0.442 0.441 0.438 0.437 0.436 0.434 0.432 0.429 0.427 0.426 0.425 0.423 0.421 0.419 0.417 0.415 0.414 0.534 0.531 0.529 0.526 0.525 0.522 0.52 0.519 0.516 0.513 0.509 0.508 0.507 0.505 0.502 0.5 0.498 0.497 0.496 0.492 0.491 0.489 0.487 0.483 0.481 0.479 0.478 0.476 0.476 0.473 0.471 0.469 0.466 0.464 0.462 0.46 0.459 0.457 0.455 0.453 0.451 0.449 0.447 0.445 0.444 0.442 0.44 0.438 0.436 0.434 0.548 0.545 0.542 0.54 0.538 0.537 0.535 0.532 0.529 0.527 0.525 0.524 0.522 0.519 0.518 0.516 0.514 0.511 0.509 0.507 0.505 0.503 0.502 0.501 0.499 0.496 0.492 0.49 0.488 0.486 0.485 0.482 0.482 0.48 0.478 0.476 0.473 0.471 0.469 0.468 0.466 0.464 0.463 0.461 0.46 0.458 0.456 0.453 0.451 0.45 0.555 0.553 0.55 0.548 0.546 0.544 0.542 0.539 0.537 0.535 0.533 0.53 0.528 0.527 0.526 0.524 0.52 0.519 0.517 0.515 0.513 0.511 0.509 0.507 0.505 0.503 0.501 0.498 0.496 0.495 0.493 0.492 0.489 0.488 0.485 0.483 0.482 0.481 0.478 0.476 0.475 0.473 0.472 0.47 0.467 0.466 0.464 0.463 0.461 0.458 0.564 0.561 0.559 0.557 0.554 0.552 0.551 0.548 0.547 0.545 0.543 0.542 0.539 0.538 0.534 0.533 0.531 0.529 0.527 0.525 0.523 0.522 0.52 0.517 0.515 0.513 0.511 0.509 0.507 0.505 0.504 0.502 0.5 0.498 0.496 0.493 0.492 0.49 0.488 0.487 0.486 0.484 0.481 0.479 0.477 0.476 0.474 0.472 0.47 0.468 0.571 0.569 0.566 0.564 0.561 0.559 0.558 0.554 0.553 0.551 0.549 0.547 0.545 0.543 0.541 0.54 0.537 0.535 0.532 0.531 0.529 0.528 0.526 0.524 0.522 0.519 0.518 0.516 0.514 0.513 0.511 0.508 0.506 0.505 0.504 0.501 0.498 0.497 0.494 0.493 0.491 0.488 0.487 0.486 0.483 0.481 0.48 0.479 0.477 0.476 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 25 25.1 25.2 25.3 25.4 25.5 25.6 25.7 25.8 25.9 26 26.1 26.2 26.3 26.4 26.5 26.6 26.7 26.8 26.9 27 27.1 27.2 27.3 27.4 27.5 27.6 27.7 27.8 27.9 28 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 28.9 29 0.269 0.268 0.267 0.264 0.263 0.261 0.259 0.258 0.257 0.256 0.255 0.252 0.25 0.249 0.247 0.246 0.244 0.243 0.241 0.24 0.239 0.238 0.235 0.234 0.232 0.232 0.231 0.229 0.228 0.226 0.225 0.223 0.222 0.22 0.219 0.217 0.216 0.215 0.214 0.213 0.211 0.21 0.209 0.208 0.207 0.205 0.204 0.202 0.201 0.199 0.305 0.304 0.302 0.299 0.297 0.296 0.294 0.292 0.29 0.288 0.286 0.284 0.283 0.282 0.28 0.278 0.277 0.275 0.274 0.272 0.271 0.27 0.268 0.266 0.264 0.263 0.261 0.26 0.259 0.257 0.256 0.254 0.253 0.251 0.25 0.249 0.247 0.245 0.244 0.242 0.24 0.239 0.238 0.237 0.235 0.234 0.233 0.232 0.23 0.229 0.329 0.327 0.325 0.323 0.321 0.32 0.317 0.315 0.314 0.312 0.311 0.309 0.308 0.306 0.304 0.302 0.301 0.298 0.297 0.295 0.294 0.293 0.291 0.289 0.287 0.286 0.285 0.283 0.281 0.279 0.277 0.276 0.275 0.274 0.272 0.271 0.269 0.268 0.267 0.265 0.264 0.262 0.261 0.259 0.258 0.256 0.255 0.254 0.253 0.251 0.345 0.343 0.341 0.34 0.338 0.336 0.335 0.333 0.332 0.329 0.327 0.325 0.323 0.322 0.32 0.319 0.317 0.315 0.313 0.312 0.31 0.308 0.307 0.306 0.305 0.303 0.301 0.299 0.297 0.296 0.294 0.292 0.291 0.289 0.288 0.287 0.285 0.283 0.282 0.28 0.279 0.278 0.276 0.274 0.273 0.272 0.27 0.269 0.267 0.266 0.367 0.365 0.363 0.361 0.359 0.357 0.355 0.354 0.352 0.35 0.349 0.347 0.346 0.344 0.342 0.34 0.338 0.336 0.335 0.333 0.331 0.329 0.328 0.326 0.325 0.323 0.322 0.32 0.319 0.317 0.316 0.314 0.313 0.311 0.309 0.307 0.306 0.304 0.303 0.302 0.3 0.299 0.297 0.295 0.294 0.292 0.291 0.289 0.288 0.286 0.377 0.375 0.373 0.37 0.369 0.367 0.366 0.364 0.363 0.361 0.359 0.357 0.355 0.354 0.352 0.35 0.348 0.347 0.345 0.343 0.342 0.34 0.338 0.337 0.335 0.333 0.331 0.329 0.328 0.327 0.326 0.324 0.322 0.32 0.318 0.317 0.315 0.313 0.312 0.31 0.309 0.307 0.306 0.305 0.304 0.302 0.301 0.299 0.298 0.296 86 0.413 0.411 0.408 0.406 0.404 0.402 0.401 0.399 0.398 0.396 0.395 0.392 0.391 0.389 0.388 0.386 0.385 0.383 0.381 0.38 0.377 0.376 0.374 0.372 0.371 0.369 0.368 0.367 0.366 0.364 0.362 0.361 0.359 0.358 0.357 0.355 0.354 0.353 0.351 0.35 0.349 0.348 0.345 0.344 0.342 0.341 0.339 0.339 0.337 0.336 0.432 0.431 0.429 0.427 0.426 0.424 0.422 0.421 0.419 0.417 0.415 0.413 0.411 0.41 0.408 0.406 0.405 0.404 0.402 0.4 0.398 0.396 0.395 0.393 0.392 0.39 0.389 0.387 0.385 0.383 0.382 0.381 0.379 0.379 0.376 0.374 0.373 0.372 0.37 0.368 0.366 0.365 0.364 0.363 0.363 0.361 0.36 0.358 0.356 0.354 0.447 0.445 0.444 0.443 0.441 0.439 0.437 0.435 0.433 0.431 0.429 0.428 0.427 0.426 0.424 0.422 0.42 0.418 0.416 0.414 0.412 0.411 0.409 0.408 0.407 0.405 0.403 0.401 0.4 0.398 0.397 0.396 0.394 0.392 0.391 0.389 0.387 0.387 0.385 0.384 0.382 0.38 0.379 0.378 0.377 0.375 0.373 0.372 0.371 0.369 0.457 0.454 0.453 0.451 0.45 0.447 0.446 0.444 0.442 0.441 0.44 0.437 0.436 0.434 0.432 0.431 0.429 0.426 0.425 0.424 0.422 0.42 0.419 0.417 0.416 0.414 0.412 0.411 0.41 0.409 0.406 0.405 0.403 0.401 0.4 0.399 0.398 0.395 0.394 0.392 0.391 0.39 0.389 0.388 0.386 0.384 0.383 0.381 0.38 0.378 0.467 0.465 0.462 0.461 0.459 0.457 0.456 0.454 0.452 0.451 0.449 0.448 0.446 0.444 0.443 0.441 0.439 0.438 0.435 0.434 0.433 0.431 0.429 0.428 0.425 0.425 0.423 0.421 0.419 0.418 0.417 0.416 0.414 0.413 0.411 0.41 0.407 0.406 0.404 0.403 0.402 0.4 0.399 0.398 0.397 0.395 0.393 0.392 0.389 0.388 0.474 0.473 0.47 0.468 0.467 0.464 0.463 0.46 0.459 0.458 0.457 0.456 0.453 0.452 0.45 0.448 0.446 0.445 0.444 0.442 0.44 0.439 0.436 0.435 0.434 0.432 0.43 0.429 0.427 0.426 0.424 0.423 0.421 0.42 0.418 0.416 0.415 0.414 0.412 0.41 0.409 0.408 0.406 0.405 0.403 0.4 0.399 0.398 0.397 0.396 29.1 29.2 29.3 29.4 29.5 29.6 29.7 29.8 29.9 30 30.1 30.2 30.3 30.4 30.5 30.6 30.7 30.8 30.9 31 31.1 31.2 31.3 31.4 31.5 31.6 31.7 31.8 31.9 32 0.198 0.197 0.196 0.195 0.195 0.193 0.192 0.19 0.189 0.187 0.187 0.186 0.185 0.184 0.182 0.181 0.18 0.179 0.178 0.176 0.175 0.175 0.174 0.173 0.172 0.17 0.17 0.169 0.168 0.167 0.228 0.226 0.225 0.223 0.221 0.22 0.219 0.218 0.218 0.217 0.215 0.214 0.212 0.211 0.21 0.209 0.207 0.206 0.204 0.204 0.203 0.202 0.201 0.2 0.198 0.197 0.195 0.194 0.194 0.193 0.25 0.248 0.247 0.245 0.244 0.243 0.241 0.24 0.238 0.237 0.236 0.235 0.233 0.232 0.231 0.229 0.228 0.227 0.226 0.224 0.223 0.222 0.221 0.219 0.218 0.218 0.217 0.216 0.214 0.213 0.265 0.263 0.262 0.26 0.258 0.256 0.255 0.254 0.253 0.252 0.251 0.249 0.248 0.247 0.246 0.244 0.243 0.241 0.241 0.239 0.238 0.236 0.235 0.233 0.232 0.231 0.23 0.229 0.227 0.226 0.285 0.283 0.282 0.281 0.28 0.279 0.277 0.276 0.275 0.273 0.272 0.27 0.268 0.266 0.264 0.263 0.262 0.262 0.261 0.26 0.258 0.257 0.255 0.254 0.253 0.251 0.249 0.248 0.246 0.245 0.295 0.293 0.291 0.29 0.288 0.287 0.286 0.284 0.283 0.281 0.28 0.279 0.277 0.276 0.274 0.273 0.271 0.27 0.268 0.267 0.265 0.264 0.264 0.263 0.261 0.26 0.258 0.257 0.256 0.255 0.335 0.333 0.331 0.329 0.327 0.327 0.326 0.324 0.322 0.321 0.32 0.319 0.317 0.317 0.315 0.314 0.312 0.311 0.31 0.308 0.307 0.306 0.305 0.304 0.303 0.302 0.3 0.298 0.297 0.295 0.352 0.35 0.349 0.347 0.347 0.345 0.344 0.342 0.341 0.339 0.338 0.337 0.336 0.334 0.333 0.331 0.33 0.329 0.328 0.327 0.325 0.323 0.321 0.32 0.319 0.317 0.317 0.316 0.315 0.315 0.368 0.367 0.365 0.364 0.362 0.36 0.359 0.357 0.356 0.355 0.353 0.351 0.349 0.348 0.348 0.347 0.346 0.344 0.343 0.341 0.339 0.338 0.336 0.336 0.334 0.334 0.333 0.331 0.33 0.329 0.377 0.374 0.373 0.372 0.371 0.369 0.368 0.367 0.364 0.363 0.361 0.36 0.359 0.358 0.357 0.355 0.354 0.353 0.351 0.35 0.349 0.348 0.347 0.346 0.343 0.342 0.34 0.339 0.338 0.337 0.386 0.385 0.384 0.383 0.381 0.379 0.378 0.377 0.376 0.374 0.372 0.37 0.369 0.368 0.367 0.365 0.364 0.363 0.362 0.361 0.359 0.358 0.357 0.354 0.353 0.352 0.351 0.349 0.348 0.347 0.393 0.392 0.391 0.389 0.388 0.387 0.386 0.383 0.382 0.381 0.38 0.377 0.376 0.375 0.374 0.373 0.371 0.37 0.369 0.368 0.367 0.365 0.363 0.362 0.361 0.359 0.358 0.357 0.357 0.356 Phụ lục số 2: Liều sâu tương ñối chùm electron lượng MeV 12 MeV Liều sâu tương ñối chùm electron lượng MeV ðộ Kích thước trường chiếu sâu 10 15 20 25 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.831 0.833 0.838 0.845 0.856 0.867 0.88 0.89 0.9 0.91 0.92 0.8308 0.8338 0.8388 0.8448 0.8559 0.8689 0.8789 0.8899 0.8979 0.9089 0.9199 0.8448 0.8469 0.8509 0.8579 0.8679 0.8779 0.8889 0.8999 0.9099 0.9189 0.9279 0.8459 0.8499 0.8569 0.8619 0.8739 0.8839 0.8929 0.8999 0.9089 0.9169 0.9269 0.8517 0.8537 0.8587 0.8657 0.8758 0.8858 0.8938 0.9028 0.9098 0.9178 0.9249 87 Liều sâu tương ñối chùm electron lượng 12 MeV Kích thước trường chiếu 0.89089 0.89189 0.8959 0.9019 0.90991 0.91992 0.92893 0.93594 0.94194 0.94795 0.95395 10 0.883 0.884 0.888 0.895 0.903 0.913 0.92 0.927 0.931 0.937 0.942 15 0.894 0.896 0.899 0.904 0.911 0.92 0.928 0.935 0.941 0.946 0.95 20 0.899 0.902 0.907 0.913 0.92 0.928 0.933 0.938 0.944 0.948 0.951 25 0.90691 0.90891 0.91291 0.91792 0.92492 0.93293 0.93794 0.94394 0.94795 0.95095 0.95295 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 0.932 0.94 0.949 0.957 0.969 0.979 0.987 0.993 0.998 0.999 0.996 0.991 0.981 0.966 0.948 0.927 0.898 0.866 0.827 0.784 0.738 0.686 0.635 0.579 0.521 0.462 0.404 0.344 0.287 0.236 0.184 0.141 0.108 0.079 0.053 0.039 0.027 0.018 0.014 0.012 0.01 0.009 0.009 0.009 0.009 0.008 0.009 0.009 0.9269 0.9359 0.947 0.956 0.964 0.974 0.984 0.99 0.995 1.001 0.998 0.994 0.986 0.971 0.954 0.9319 0.9079 0.8739 0.8368 0.7908 0.7447 0.6927 0.6396 0.5856 0.5235 0.4695 0.4074 0.3484 0.2943 0.2362 0.1902 0.1452 0.1111 0.0791 0.0561 0.04 0.027 0.02 0.015 0.012 0.01 0.01 0.01 0.009 0.009 0.009 0.009 0.009 0.9349 0.9419 0.952 0.961 0.969 0.977 0.985 0.992 0.997 1 0.997 0.992 0.983 0.971 0.954 0.9319 0.9049 0.8739 0.8368 0.7948 0.7498 0.6987 0.6446 0.5876 0.5345 0.4735 0.4134 0.3554 0.2973 0.2442 0.1952 0.1532 0.1171 0.0881 0.0651 0.0461 0.033 0.022 0.016 0.012 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.009 0.9349 0.9419 0.952 0.961 0.969 0.977 0.983 0.992 0.996 1 0.997 0.994 0.987 0.971 0.952 0.9299 0.9049 0.8739 0.8328 0.7888 0.7447 0.6877 0.6366 0.5786 0.5195 0.4575 0.4004 0.3403 0.2843 0.2312 0.1782 0.1411 0.1031 0.0741 0.0551 0.038 0.026 0.02 0.015 0.013 0.012 0.012 0.011 0.011 0.011 0.011 0.011 0.011 0.9329 0.9419 0.9499 0.9589 0.9669 0.975 0.982 0.99 0.994 1 0.998 0.993 0.985 0.974 0.9559 0.9349 0.9088 0.8778 0.8387 0.7936 0.7485 0.6964 0.6423 0.5872 0.5261 0.4699 0.4068 0.3497 0.2906 0.2365 0.1884 0.1423 0.1102 0.0792 0.0571 0.0391 0.0271 0.02 0.016 0.013 0.012 0.011 0.011 0.011 0.011 0.011 0.011 0.01 88 0.95996 0.96396 0.96797 0.97197 0.97698 0.98098 0.98398 0.98899 0.99099 0.99499 0.998 1.001 1.001 0.997 0.99199 0.98599 0.97898 0.96897 0.95696 0.94294 0.92893 0.91191 0.88989 0.86987 0.84484 0.81882 0.78879 0.75375 0.71872 0.68168 0.64464 0.5996 0.55756 0.51451 0.46847 0.42142 0.38138 0.33534 0.29229 0.25325 0.21622 0.18018 0.15015 0.12312 0.0981 0.08108 0.947 0.95 0.955 0.96 0.963 0.967 0.972 0.976 0.979 0.983 0.987 0.99 0.994 0.996 0.999 0.999 0.999 0.997 0.993 0.988 0.98 0.97 0.958 0.945 0.928 0.909 0.886 0.861 0.833 0.8 0.763 0.726 0.684 0.642 0.594 0.548 0.499 0.451 0.403 0.354 0.309 0.264 0.228 0.189 0.157 0.128 0.104 0.084 0.954 0.958 0.963 0.967 0.97 0.972 0.975 0.98 0.984 0.987 0.989 0.993 0.995 0.998 1 0.999 0.996 0.991 0.986 0.98 0.97 0.957 0.943 0.927 0.909 0.887 0.86 0.832 0.799 0.765 0.73 0.693 0.651 0.612 0.57 0.524 0.476 0.429 0.383 0.336 0.292 0.248 0.211 0.176 0.143 0.115 0.093 0.955 0.959 0.961 0.965 0.968 0.971 0.974 0.979 0.983 0.985 0.988 0.991 0.995 0.997 0.999 1 0.999 0.995 0.989 0.983 0.973 0.962 0.949 0.932 0.913 0.89 0.865 0.836 0.801 0.764 0.727 0.686 0.639 0.594 0.545 0.499 0.449 0.396 0.35 0.305 0.261 0.22 0.183 0.152 0.127 0.102 0.081 0.95696 0.95996 0.96296 0.96597 0.96897 0.97197 0.97497 0.97798 0.98198 0.98398 0.98799 0.98999 0.99299 0.996 0.998 1 1.001 0.999 0.99499 0.98999 0.98498 0.97297 0.96196 0.94895 0.93293 0.91391 0.89289 0.86887 0.83984 0.80681 0.76977 0.73173 0.69069 0.64865 0.6026 0.55355 0.50651 0.45646 0.40741 0.35936 0.31231 0.26727 0.22823 0.19219 0.15716 0.13013 0.10511 0.08509 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 0.009 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.007 0.008 0.008 0.008 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.006 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.006 0.006 0.007 0.01 0.009 0.008 0.009 0.008 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.008 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.007 0.008 0.007 0.007 0.007 0.008 0.007 0.007 0.007 0.007 0.007 0.007 0.006 0.007 0.006 0.007 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.007 0.007 0.007 0.008 0.008 0.008 0.008 0.007 0.007 0.007 0.008 0.007 0.007 0.007 0.007 0.007 0.006 0.006 0.006 0.006 0.006 0.007 0.006 0.006 0.006 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.01 0.011 0.011 0.011 0.011 0.011 0.01 0.011 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.009 0.009 0.009 0.009 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.009 0.009 0.01 0.011 0.011 0.011 0.01 0.01 0.01 0.01 0.011 0.011 0.01 0.011 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.009 0.01 0.01 0.01 0.01 0.009 0.009 0.01 0.01 0.01 0.01 0.01 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.01 0.009 0.009 0.009 89 0.06507 0.05005 0.03904 0.03103 0.02603 0.02202 0.01802 0.01702 0.01702 0.01602 0.01502 0.01502 0.01502 0.01502 0.01502 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01201 0.01301 0.01301 0.01301 0.01301 0.01201 0.01201 0.01201 0.01201 0.01201 0.01201 0.01201 0.065 0.051 0.041 0.033 0.027 0.022 0.02 0.019 0.018 0.017 0.017 0.017 0.017 0.015 0.015 0.017 0.017 0.017 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.013 0.013 0.013 0.013 0.013 0.075 0.059 0.047 0.037 0.03 0.025 0.021 0.019 0.018 0.017 0.017 0.017 0.017 0.017 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.013 0.014 0.014 0.014 0.014 0.014 0.014 0.013 0.064 0.05 0.04 0.033 0.028 0.023 0.021 0.02 0.019 0.018 0.018 0.018 0.018 0.018 0.018 0.018 0.017 0.017 0.018 0.017 0.017 0.018 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.016 0.06807 0.05305 0.04204 0.03403 0.02803 0.02402 0.02202 0.02102 0.01902 0.01802 0.01802 0.01802 0.01802 0.01802 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01702 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01602 0.01502 0.01502 0.01502 0.01502 0.01502 0.01502 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 13 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 14 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15 15.1 15.2 15.3 15.4 15.5 15.6 15.7 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.005 0.005 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.005 0.006 0.005 0.006 0.006 0.006 0.006 0.005 0.005 0.006 0.005 0.005 0.006 0.005 0.006 0.004 0.005 0.005 0.005 0.005 0.005 0.006 0.006 0.005 0.005 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.007 0.006 0.006 0.006 0.006 0.007 0.007 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.007 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.005 0.005 0.005 0.006 0.005 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.006 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.009 0.009 0.009 0.009 0.01 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.008 0.009 0.009 0.009 0.009 0.009 0.008 0.008 0.008 0.008 0.008 0.009 0.008 0.008 0.008 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.008 0.009 0.009 0.009 0.009 0.009 0.008 0.008 0.008 0.009 0.009 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.009 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.007 0.007 0.008 90 0.01201 0.01201 0.01201 0.01101 0.01101 0.01201 0.01101 0.01101 0.01201 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01101 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.01001 0.00901 0.00901 0.01001 0.00901 0.00901 0.013 0.013 0.013 0.013 0.012 0.012 0.013 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.011 0.011 0.012 0.012 0.012 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.01 0.011 0.011 0.011 0.01 0.011 0.011 0.011 0.011 0.01 0.01 0.011 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.011 0.011 0.01 0.011 0.011 0.011 0.011 0.01 0.011 0.011 0.01 0.016 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.013 0.013 0.013 0.013 0.013 0.014 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.01502 0.01502 0.01502 0.01502 0.01502 0.01502 0.01502 0.01502 0.01502 0.01401 0.01401 0.01401 0.01502 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01401 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01201 0.01201 0.01301 15.8 15.9 16 16.1 16.2 16.3 16.4 16.5 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.006 0.006 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.008 0.008 0.008 0.008 0.008 0.008 0.007 0.007 0.008 0.008 0.008 0.008 0.008 0.007 0.007 0.008 0.00901 0.01001 0.00901 0.00901 0.00901 0.00901 0.00901 0.00901 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.01301 0.01301 0.01301 0.01301 0.01301 0.01301 0.01201 0.01201 Phụ lục số 3: Tỷ số liều sâu cách tâm (OCR) chùm photon 15 MV Tỷ số liều sâu cách tâm (OCR) chùm photon MV khoảng ðộ sâu so với mặt nước (cm) cách 1.6 10 15 20 25 -7.5 -7.4 -7.3 -7.2 -7.1 -7 -6.9 -6.8 -6.7 -6.6 -6.5 -6.4 -6.3 -6.2 -6.1 -6 -5.9 -5.8 -5.7 -5.6 -5.5 -5.4 -5.3 -5.2 -5.1 -5 -4.9 -4.8 -4.7 -4.6 -4.5 -4.4 -4.3 0.017 0.018 0.02 0.021 0.021 0.022 0.024 0.025 0.027 0.028 0.03 0.032 0.034 0.036 0.039 0.041 0.046 0.053 0.061 0.076 0.099 0.138 0.193 0.268 0.362 0.471 0.587 0.701 0.801 0.881 0.934 0.968 0.988 0.022 0.024 0.025 0.026 0.028 0.03 0.031 0.033 0.035 0.037 0.04 0.043 0.046 0.048 0.051 0.057 0.061 0.069 0.079 0.094 0.118 0.154 0.206 0.278 0.368 0.472 0.584 0.692 0.787 0.861 0.914 0.947 0.966 0.036 0.038 0.04 0.042 0.045 0.048 0.049 0.052 0.055 0.057 0.061 0.064 0.069 0.072 0.076 0.079 0.085 0.092 0.103 0.117 0.139 0.17 0.216 0.282 0.367 0.466 0.575 0.68 0.771 0.842 0.892 0.923 0.943 0.043 0.045 0.047 0.049 0.052 0.055 0.059 0.061 0.065 0.066 0.07 0.074 0.078 0.081 0.086 0.09 0.096 0.104 0.114 0.127 0.147 0.175 0.218 0.28 0.358 0.454 0.559 0.664 0.757 0.829 0.877 0.909 0.93 0.049 0.052 0.055 0.057 0.06 0.064 0.067 0.071 0.073 0.076 0.079 0.083 0.087 0.09 0.096 0.103 0.108 0.115 0.125 0.139 0.157 0.186 0.229 0.29 0.368 0.464 0.57 0.674 0.765 0.833 0.88 0.907 0.926 0.046 0.047 0.05 0.051 0.055 0.059 0.062 0.066 0.068 0.071 0.076 0.083 0.086 0.09 0.093 0.1 0.104 0.113 0.123 0.137 0.153 0.183 0.225 0.282 0.361 0.456 0.56 0.667 0.756 0.822 0.867 0.897 0.914 91 Tỷ số liều sâu cách tâm (OCR) chùm photon MV ðộ sâu so với mặt nước (cm) 2.9 0.0498 0.0509 0.0519 0.0529 0.0539 0.0569 0.059 0.061 0.0621 0.0643 0.0673 0.0704 0.0737 0.078 0.0834 0.0898 0.0976 0.1078 0.1216 0.1396 0.1641 0.1993 0.2471 0.3106 0.3908 0.4839 0.5847 0.683 0.7695 0.8382 0.8871 0.9209 0.9448 0.0473 0.0486 0.0504 0.0514 0.0529 0.055 0.0566 0.0582 0.0603 0.0638 0.0665 0.0694 0.0734 0.0785 0.0847 0.091 0.1005 0.1114 0.1257 0.1454 0.1706 0.2054 0.2524 0.3134 0.3892 0.479 0.5786 0.677 0.762 0.8278 0.8779 0.9122 0.9368 10 0.0615 0.0626 0.0644 0.0658 0.0669 0.069 0.0713 0.0742 0.0759 0.0796 0.0835 0.0868 0.0908 0.096 0.1015 0.109 0.1171 0.1292 0.1419 0.1577 0.1795 0.2109 0.2535 0.3117 0.3879 0.479 0.5777 0.6728 0.756 0.8208 0.8685 0.8999 0.921 15 0.0728 0.0748 0.0771 0.0784 0.0803 0.083 0.0857 0.0876 0.0909 0.0933 0.0968 0.101 0.1057 0.1105 0.1154 0.123 0.1323 0.143 0.1563 0.173 0.1939 0.225 0.2682 0.3247 0.3978 0.4855 0.5804 0.671 0.7509 0.8165 0.8623 0.8921 0.9139 20 0.087 0.0894 0.0918 0.0936 0.0956 0.098 0.0984 0.1016 0.1052 0.1076 0.11 0.1148 0.1196 0.1244 0.1308 0.138 0.1476 0.1568 0.1682 0.1858 0.207 0.2361 0.2763 0.3317 0.4023 0.49 0.587 0.6786 0.7588 0.8213 0.864 0.8916 0.9112 25 0.0998 0.103 0.104 0.107 0.1075 0.11 0.1133 0.116 0.119 0.121 0.1253 0.128 0.1338 0.137 0.1418 0.15 0.1568 0.167 0.1795 0.196 0.2185 0.2485 0.2868 0.339 0.4085 0.4955 0.587 0.678 0.757 0.817 0.8568 0.886 0.909 -4.2 -4.1 -4 -3.9 -3.8 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 -1.3 -1.2 -1.1 -1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 1.001 1.008 1.012 1.016 1.018 1.019 1.019 1.02 1.019 1.019 1.02 1.018 1.017 1.016 1.015 1.014 1.012 1.011 1.01 1.009 1.007 1.006 1.004 1.002 1.002 1.001 0.999 0.998 0.998 0.998 0.998 0.998 0.998 0.999 0.999 0.998 0.999 0.999 1 0.999 0.999 0.998 0.999 0.999 0.998 0.978 0.988 0.993 0.998 1.003 1.006 1.006 1.006 1.007 1.008 1.009 1.009 1.011 1.01 1.009 1.008 1.007 1.006 1.006 1.006 1.006 1.004 1.002 0.999 0.998 0.998 0.999 0.998 0.997 0.997 0.998 0.998 0.998 0.998 0.998 0.999 1 1.001 1.001 1 1 0.999 0.999 0.998 0.998 0.957 0.967 0.974 0.979 0.983 0.986 0.989 0.991 0.992 0.994 0.996 0.996 0.998 0.998 0.998 0.999 1 0.998 0.999 0.998 0.998 0.998 0.996 0.996 0.995 0.995 0.995 0.995 0.996 0.996 0.998 0.998 0.999 0.999 1 0.999 0.998 0.999 0.999 0.999 1.001 0.999 1 0.999 0.945 0.954 0.96 0.965 0.969 0.974 0.978 0.981 0.985 0.985 0.987 0.988 0.989 0.99 0.992 0.992 0.994 0.994 0.995 0.995 0.995 0.995 0.997 0.995 0.995 0.994 0.995 0.995 0.995 0.995 0.995 0.996 0.997 0.998 0.998 1 1 0.999 0.999 1 1 1 0.998 0.938 0.949 0.957 0.962 0.967 0.969 0.972 0.976 0.979 0.982 0.983 0.985 0.987 0.987 0.989 0.99 0.991 0.994 0.994 0.994 0.994 0.994 0.994 0.994 0.996 0.995 0.994 0.994 0.994 0.997 0.998 1 1.002 1.002 1.002 1.002 1.002 1.004 1.003 1.002 1 1.001 1 1 0.926 0.936 0.943 0.948 0.955 0.959 0.96 0.964 0.968 0.971 0.972 0.973 0.976 0.977 0.98 0.983 0.983 0.983 0.986 0.986 0.986 0.986 0.986 0.987 0.989 0.989 0.989 0.989 0.989 0.991 0.991 0.994 0.994 0.994 0.994 0.994 0.994 0.996 0.997 0.997 0.999 1 0.999 0.997 0.997 0.997 0.997 0.996 92 0.9618 0.9731 0.9825 0.9883 0.9935 0.9977 1.0009 1.001 1.001 1.002 1.0029 1.0019 1.0007 0.999 0.9988 0.9976 0.9955 0.9937 0.993 0.993 0.9926 0.9916 0.9906 0.9891 0.9875 0.9875 0.9885 0.9896 0.9894 0.9884 0.9887 0.9897 0.9907 0.9917 0.9935 0.9948 0.9958 0.996 0.9978 0.9989 0.9999 1 1.001 1.0009 0.9988 0.9968 0.995 0.9947 0.9525 0.9654 0.975 0.9813 0.9864 0.9906 0.9944 0.9965 0.9986 0.9996 0.9986 0.998 0.998 0.9974 0.997 0.9963 0.9945 0.9932 0.9922 0.992 0.992 0.99 0.988 0.9869 0.9862 0.987 0.9873 0.988 0.9884 0.9894 0.9914 0.994 0.9956 0.9966 0.997 0.997 0.997 0.9986 0.9999 1.001 1 0.9989 0.998 0.9976 0.9958 0.9947 0.9372 0.9508 0.962 0.9696 0.9756 0.9792 0.9824 0.9845 0.9866 0.9877 0.988 0.9898 0.991 0.9898 0.9878 0.987 0.9874 0.988 0.9892 0.9886 0.9872 0.9879 0.988 0.986 0.986 0.986 0.986 0.9865 0.987 0.987 0.9878 0.9898 0.99 0.9911 0.9926 0.995 0.995 0.9955 0.996 0.9967 0.9986 0.999 1 0.9998 0.999 0.9982 0.997 0.9952 0.9311 0.9444 0.955 0.9608 0.9665 0.9718 0.9764 0.9802 0.9819 0.9839 0.9824 0.9847 0.9865 0.9863 0.986 0.986 0.9869 0.986 0.9844 0.9831 0.984 0.984 0.984 0.984 0.984 0.984 0.984 0.9855 0.9869 0.9871 0.9892 0.99 0.991 0.992 0.9936 0.9969 0.997 0.997 0.9974 0.998 0.998 0.9997 1.0017 0.9994 0.998 0.9974 0.9955 0.9941 0.9262 0.939 0.947 0.9542 0.9614 0.968 0.9716 0.974 0.9744 0.9768 0.9804 0.9804 0.98 0.9824 0.984 0.9828 0.982 0.982 0.982 0.982 0.982 0.9836 0.984 0.984 0.984 0.984 0.984 0.984 0.9844 0.986 0.9872 0.9896 0.992 0.9916 0.9908 0.992 0.9936 0.994 0.9984 1.0008 1.0008 1 1.0016 1 0.9984 0.998 0.994 0.9215 0.9325 0.944 0.953 0.9575 0.9628 0.969 0.971 0.972 0.973 0.976 0.976 0.976 0.9775 0.981 0.978 0.978 0.9803 0.978 0.976 0.977 0.9803 0.983 0.983 0.983 0.9845 0.985 0.985 0.984 0.983 0.985 0.9858 0.9905 0.993 0.993 0.9943 0.998 0.998 0.998 0.9973 0.9965 0.998 1 0.999 0.998 0.998 0.9945 0.993 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.1 5.2 5.3 5.4 5.5 0.997 0.996 0.996 0.995 0.995 0.995 0.996 0.994 0.994 0.995 0.994 0.995 0.997 0.998 0.998 1.002 1.003 1.003 1.004 1.006 1.007 1.007 1.008 1.009 1.011 1.011 1.011 1.011 1.011 1.009 1.007 1.007 1.004 0.998 0.989 0.977 0.957 0.922 0.868 0.796 0.707 0.599 0.48 0.356 0.25 0.174 0.12 0.086 0.997 0.996 0.996 0.996 0.995 0.994 0.993 0.992 0.993 0.992 0.993 0.994 0.994 0.994 0.995 0.996 0.997 0.998 0.997 0.998 0.998 0.998 0.999 0.999 0.998 0.999 0.999 0.998 0.997 0.995 0.992 0.99 0.986 0.979 0.97 0.956 0.934 0.899 0.848 0.781 0.695 0.592 0.478 0.369 0.273 0.197 0.146 0.114 0.998 0.996 0.995 0.994 0.994 0.993 0.991 0.99 0.991 0.991 0.99 0.989 0.989 0.99 0.989 0.989 0.989 0.99 0.991 0.99 0.989 0.989 0.988 0.987 0.985 0.985 0.984 0.984 0.982 0.978 0.975 0.972 0.968 0.965 0.957 0.948 0.933 0.913 0.882 0.834 0.767 0.68 0.579 0.469 0.363 0.274 0.208 0.162 0.131 0.997 0.997 0.998 0.998 0.996 0.994 0.994 0.992 0.99 0.989 0.989 0.989 0.989 0.99 0.99 0.99 0.987 0.985 0.985 0.985 0.984 0.984 0.984 0.983 0.982 0.981 0.979 0.977 0.975 0.971 0.968 0.964 0.959 0.955 0.947 0.937 0.925 0.906 0.876 0.833 0.771 0.691 0.597 0.496 0.393 0.301 0.229 0.181 0.148 0.999 0.997 0.994 0.994 0.994 0.993 0.991 0.989 0.989 0.989 0.987 0.987 0.987 0.987 0.987 0.986 0.984 0.983 0.983 0.983 0.981 0.98 0.979 0.979 0.976 0.973 0.971 0.968 0.966 0.963 0.957 0.954 0.949 0.944 0.936 0.926 0.913 0.892 0.863 0.814 0.75 0.666 0.569 0.464 0.365 0.28 0.215 0.171 0.146 0.994 0.994 0.991 0.99 0.989 0.989 0.988 0.986 0.984 0.983 0.986 0.985 0.983 0.98 0.98 0.979 0.977 0.977 0.977 0.976 0.973 0.972 0.972 0.971 0.969 0.966 0.963 0.962 0.958 0.954 0.951 0.948 0.944 0.94 0.932 0.922 0.907 0.889 0.859 0.818 0.755 0.675 0.573 0.465 0.362 0.276 0.22 0.181 0.153 93 0.9928 0.9918 0.9907 0.9897 0.9887 0.9877 0.987 0.9866 0.986 0.9855 0.9855 0.9865 0.9876 0.9886 0.9896 0.9906 0.9923 0.9937 0.9947 0.9965 0.9978 0.9988 0.9999 1.0009 1.0019 1.0029 1.004 1.004 1.003 1.002 1.0008 0.9975 0.9922 0.9855 0.976 0.9638 0.9466 0.9217 0.8878 0.8419 0.779 0.6981 0.6 0.491 0.3874 0.3021 0.2376 0.1915 0.1577 0.9937 0.993 0.9916 0.9895 0.9885 0.9868 0.986 0.9853 0.9843 0.984 0.984 0.984 0.9831 0.985 0.9871 0.9881 0.9894 0.9922 0.9935 0.9953 0.9964 0.9974 0.9985 0.999 0.999 0.9996 1.0007 1.0003 0.9978 0.9954 0.9907 0.9873 0.9804 0.974 0.9624 0.9493 0.9319 0.9078 0.8732 0.8277 0.7671 0.6904 0.5956 0.4935 0.3968 0.3132 0.2475 0.2008 0.1673 0.9926 0.992 0.9911 0.99 0.9879 0.9872 0.9874 0.9852 0.9835 0.983 0.9823 0.9828 0.9839 0.984 0.984 0.9844 0.986 0.9864 0.987 0.987 0.987 0.9878 0.9898 0.99 0.9901 0.9912 0.9917 0.9894 0.985 0.9818 0.9789 0.974 0.9685 0.96 0.9498 0.936 0.919 0.8967 0.865 0.8224 0.7614 0.6796 0.5856 0.49 0.4005 0.3201 0.2581 0.2123 0.1805 0.9919 0.99 0.99 0.9885 0.985 0.9824 0.982 0.982 0.982 0.9816 0.9799 0.979 0.979 0.979 0.981 0.981 0.981 0.9816 0.982 0.982 0.984 0.984 0.984 0.983 0.982 0.9812 0.981 0.9808 0.9782 0.9748 0.9713 0.9665 0.9599 0.952 0.9427 0.9305 0.9124 0.8905 0.8603 0.8189 0.7641 0.6887 0.6014 0.5065 0.4149 0.3325 0.2684 0.2249 0.1927 0.994 0.9928 0.9904 0.988 0.9856 0.984 0.984 0.984 0.982 0.982 0.982 0.9808 0.98 0.98 0.982 0.982 0.9832 0.984 0.982 0.9816 0.98 0.98 0.98 0.98 0.98 0.9792 0.978 0.9764 0.974 0.9698 0.9674 0.9614 0.9558 0.947 0.937 0.925 0.91 0.8849 0.852 0.8107 0.753 0.671 0.579 0.488 0.4034 0.3281 0.2691 0.2281 0.201 0.9908 0.99 0.988 0.9865 0.985 0.985 0.983 0.982 0.981 0.981 0.9775 0.977 0.978 0.978 0.981 0.982 0.9815 0.981 0.9803 0.978 0.9765 0.976 0.978 0.978 0.978 0.976 0.9753 0.973 0.9715 0.969 0.9605 0.9575 0.953 0.944 0.9345 0.92 0.9018 0.881 0.8553 0.817 0.7608 0.69 0.602 0.502 0.4095 0.337 0.2825 0.2435 0.2135 5.6 5.7 5.8 5.9 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.1 7.2 7.3 7.4 7.5 0.067 0.056 0.049 0.044 0.039 0.036 0.034 0.031 0.03 0.029 0.027 0.025 0.023 0.021 0.021 0.02 0.018 0.017 0.016 0.016 0.093 0.08 0.07 0.062 0.058 0.054 0.05 0.046 0.043 0.04 0.038 0.037 0.035 0.033 0.03 0.028 0.026 0.025 0.025 0.024 0.112 0.098 0.089 0.083 0.076 0.072 0.067 0.064 0.06 0.058 0.055 0.052 0.049 0.046 0.045 0.043 0.04 0.037 0.035 0.033 0.129 0.115 0.107 0.1 0.094 0.089 0.085 0.08 0.076 0.072 0.068 0.065 0.061 0.059 0.058 0.056 0.053 0.05 0.048 0.045 0.131 0.12 0.112 0.104 0.099 0.091 0.086 0.083 0.078 0.075 0.071 0.068 0.065 0.062 0.06 0.056 0.052 0.048 0.047 0.045 0.134 0.124 0.117 0.11 0.103 0.096 0.093 0.087 0.083 0.076 0.073 0.069 0.066 0.065 0.062 0.058 0.057 0.053 0.05 0.047 0.1342 0.1179 0.1055 0.0956 0.0886 0.0824 0.0778 0.0737 0.0704 0.0673 0.0643 0.0621 0.0601 0.058 0.055 0.0539 0.0519 0.0509 0.0499 0.0488 0.1432 0.1245 0.1104 0.0995 0.091 0.0847 0.0786 0.0744 0.0704 0.0672 0.0644 0.0616 0.0586 0.0571 0.055 0.0529 0.0514 0.0504 0.0493 0.0475 0.1571 0.1395 0.1254 0.1158 0.107 0.1005 0.0952 0.0908 0.0864 0.082 0.0788 0.0759 0.0726 0.0702 0.069 0.0659 0.0644 0.0617 0.061 0.0605 0.1706 0.1549 0.143 0.1332 0.124 0.1173 0.1115 0.1062 0.1016 0.0978 0.0943 0.0909 0.0876 0.0857 0.084 0.081 0.0784 0.0771 0.0748 0.0728 0.1806 0.1662 0.1536 0.1452 0.136 0.1288 0.1224 0.1176 0.1128 0.11 0.1056 0.1032 0.1008 0.0968 0.094 0.093 0.0922 0.0898 0.0874 0.085 0.194 0.1795 0.1685 0.159 0.15 0.1438 0.138 0.1323 0.128 0.1253 0.122 0.1195 0.116 0.1133 0.11 0.1075 0.104 0.1035 0.1005 0.099 Phụ lục số 4: Tỷ số liều sâu cách tâm (OCR) chùm electron 12 MeV khoảng cách Tỷ số liều sâu cách tâm (OCR) chùm electron MeV ðộ sâu so với mặt nước (cm) Tỷ số liều sâu cách tâm (OCR) chùm chùm electron 12 MeV ðộ sâu so với mặt nước (cm) -7.5 -7.4 -7.3 -7.2 -7.1 -7 -6.9 -6.8 -6.7 -6.6 -6.5 -6.4 -6.3 -6.2 -6.1 -6 -5.9 -5.8 -5.7 2.81 3.3 3.66 4.46 0.0125 0.0089 0.009 0.01126 0.018 0.05666 0.01352 0.00992 0.00956 0.01229 0.01804 0.057 0.01454 0.0119 0.01118 0.01333 0.01908 0.05775 0.01668 0.01494 0.01388 0.01473 0.02025 0.058 0.01974 0.017 0.01566 0.0168 0.02231 0.05883 0.02281 0.02015 0.01945 0.01975 0.02459 0.05987 0.02587 0.02537 0.02389 0.0239 0.02772 0.06278 0.02957 0.03155 0.02952 0.02906 0.03112 0.06687 0.03365 0.03779 0.03575 0.03582 0.03594 0.07205 0.03842 0.0453 0.04442 0.04425 0.04289 0.07726 0.04422 0.0551 0.05541 0.05419 0.05156 0.08273 0.05107 0.06745 0.06675 0.06587 0.06225 0.09031 0.06045 0.08018 0.08085 0.07967 0.07523 0.10006 0.07058 0.09538 0.09733 0.0964 0.08981 0.11201 0.08308 0.11348 0.11779 0.11565 0.10713 0.12622 0.09794 0.13428 0.13847 0.13608 0.12708 0.14314 0.11488 0.15851 0.16239 0.16025 0.14906 0.16411 0.13641 0.18502 0.19033 0.18766 0.1746 0.18883 0.16229 0.21473 0.21984 0.21758 0.20313 0.21683 3.74 4.38 4.86 5.28 5.86 0.0201 0.02039 0.02115 0.02171 0.03204 0.08061 0.02207 0.02292 0.02428 0.0238 0.03319 0.08166 0.0232 0.02681 0.02821 0.02681 0.03544 0.08272 0.02537 0.03055 0.03238 0.031 0.0386 0.08456 0.02846 0.03572 0.03743 0.03574 0.04226 0.08752 0.03155 0.04129 0.04362 0.0416 0.04753 0.09158 0.03503 0.04833 0.05183 0.04852 0.05351 0.09679 0.03994 0.05667 0.06021 0.05656 0.06087 0.10206 0.04429 0.06595 0.07069 0.06647 0.06917 0.10852 0.04971 0.07684 0.08216 0.07771 0.07864 0.11623 0.05616 0.08937 0.09419 0.09095 0.08982 0.12591 0.06369 0.10285 0.10917 0.1054 0.10245 0.13703 0.07189 0.11833 0.12583 0.12105 0.11711 0.15001 0.08127 0.13557 0.14334 0.13981 0.13362 0.16489 0.09419 0.15538 0.16385 0.15866 0.1528 0.18223 0.10958 0.1768 0.18625 0.18094 0.17363 0.2012 0.12728 0.201 0.21 0.20525 0.19734 0.22185 0.15024 0.22767 0.23637 0.23083 0.22248 0.2448 0.17743 0.25625 0.2645 0.25948 0.24973 0.26983 94 -5.6 -5.5 -5.4 -5.3 -5.2 -5.1 -5 -4.9 -4.8 -4.7 -4.6 -4.5 -4.4 -4.3 -4.2 -4.1 -4 -3.9 -3.8 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 -1.3 -1.2 0.19408 0.24837 0.25226 0.25035 0.23457 0.2485 0.23212 0.28478 0.28768 0.28664 0.27007 0.28471 0.27733 0.32487 0.32544 0.32379 0.30738 0.32297 0.32888 0.36743 0.3659 0.36335 0.3463 0.36342 0.38859 0.41266 0.40809 0.40284 0.38767 0.40576 0.45173 0.45952 0.45242 0.44549 0.43125 0.45023 0.519 0.5071 0.49502 0.488 0.475 0.49515 0.58524 0.55339 0.53702 0.53145 0.51875 0.54075 0.64741 0.59923 0.57991 0.57358 0.56242 0.58525 0.70706 0.64358 0.62192 0.61497 0.60495 0.62906 0.75776 0.68688 0.6629 0.65451 0.64609 0.67186 0.80398 0.72692 0.70156 0.6921 0.68632 0.7116 0.84304 0.76446 0.73648 0.72971 0.72462 0.75142 0.87571 0.7984 0.77121 0.76509 0.76156 0.78667 0.90143 0.82786 0.80382 0.79792 0.79633 0.81975 0.92212 0.85582 0.83254 0.8275 0.82846 0.85038 0.93886 0.88015 0.85833 0.8544 0.85729 0.87747 0.95247 0.90205 0.88094 0.8786 0.88306 0.90273 0.9627 0.91793 0.90259 0.90077 0.90558 0.92474 0.96953 0.93338 0.92206 0.92062 0.92537 0.94356 0.97538 0.94786 0.9374 0.93721 0.94244 0.95875 0.98048 0.95918 0.95014 0.95134 0.95625 0.97038 0.98495 0.96829 0.96164 0.96328 0.96803 0.97987 0.98801 0.97536 0.97207 0.97312 0.97809 0.98772 0.99071 0.98041 0.98058 0.98077 0.98675 0.99444 0.99276 0.98466 0.98492 0.98719 0.9928 0.99946 0.9944 0.98962 0.99004 0.99253 0.99721 1.00233 0.99542 0.99337 0.99421 0.99675 1.00137 1.00442 0.996 0.99564 0.99915 0.99994 1.00463 1.005 0.99646 0.99847 1.001 1.00302 1.00775 1.005 0.99748 1.00054 1.001 1.00505 1.00896 1.005 0.9985 1.0023 1.00135 1.00608 1.009 1.005 0.999 1.00267 1.003 1.007 1.009 1.005 0.99954 1.00165 1.00324 1.00684 1.009 1.005 1.00138 1.004 1.0058 1.00888 1.005 1.00241 1.004 1.005 1.00784 1.005 1.003 1.004 1.00473 1.007 1.005 1.003 1.00474 1.0043 1.00676 1.00484 1.003 1.0052 1.005 1.006 1.0042 1.003 1.00356 1.00462 1.00568 1.005 1.0019 1.003 1.004 1.005 1.005 1.001 1.003 1.00355 1.0046 1.00467 0.99928 1.001 1.003 1.003 1.00444 1.004 0.999 1.001 1.003 1.003 1.005 1.004 0.999 1.001 1.00119 1.00356 1.005 1.00446 95 0.21012 0.28809 0.29442 0.28916 0.27822 0.29589 0.24829 0.32228 0.327 0.32012 0.30894 0.32474 0.2931 0.35828 0.36097 0.353 0.34172 0.35595 0.34499 0.3968 0.39534 0.38689 0.3758 0.3896 0.40267 0.43703 0.43259 0.42258 0.41159 0.42555 0.46341 0.47775 0.46989 0.45871 0.44768 0.46238 0.52576 0.51936 0.50644 0.49489 0.48453 0.50065 0.58819 0.5605 0.54375 0.53174 0.52178 0.5386 0.6494 0.60084 0.57946 0.56767 0.55921 0.57682 0.70588 0.63963 0.61488 0.60334 0.59554 0.61432 0.7574 0.67656 0.65064 0.63759 0.63076 0.64946 0.80337 0.71187 0.68494 0.67019 0.66487 0.68185 0.84266 0.74633 0.71611 0.70189 0.69788 0.71405 0.87696 0.77797 0.74621 0.73228 0.72979 0.74588 0.90459 0.80653 0.77511 0.76278 0.76059 0.77603 0.9267 0.83325 0.80221 0.79026 0.78945 0.80568 0.94431 0.85762 0.8275 0.81621 0.81699 0.83349 0.95787 0.87875 0.85012 0.84021 0.84248 0.85846 0.96908 0.89681 0.87133 0.86228 0.86577 0.88053 0.97724 0.91383 0.89082 0.8836 0.88776 0.89997 0.98331 0.92919 0.90841 0.90204 0.90652 0.9173 0.98828 0.9416 0.92403 0.91853 0.92321 0.93226 0.99134 0.95229 0.93813 0.93352 0.9384 0.94612 0.99443 0.96034 0.94952 0.94635 0.95053 0.95757 0.99733 0.96761 0.9594 0.95698 0.96105 0.96714 0.99919 0.97406 0.96752 0.96596 0.97089 0.97627 0.97938 0.97412 0.97379 0.97895 0.98345 0.98367 0.9811 0.98054 0.98584 0.98889 1.00028 0.98779 0.98608 0.98557 0.99111 0.99172 1.001 0.98998 0.99111 0.98975 0.99474 0.99424 1.00133 0.99403 0.99459 0.99395 0.99789 0.99696 1.002 0.99519 0.99772 0.99734 1.00105 0.99961 1.002 0.9981 0.9999 0.99966 1.00347 1.00219 1.002 0.99914 1.00198 1.00177 1.00479 1.00496 1.002 1.00018 1.00306 1.00293 1.005 1.00743 1.002 1.00122 1.005 1.00398 1.005 1.00877 1.002 1.0025 1.005 1.004 1.005 1.009 1.002 1.004 1.00467 1.004 1.005 1.00812 1.002 1.004 1.003 1.00413 1.00505 1.00705 1.00144 1.00327 1.003 1.00482 1.006 1.006 1.001 1.002 1.003 1.004 1.00584 1.006 1.00039 1.002 1.003 1.00373 1.005 1.00588 1.002 1.003 1.003 1.005 1.005 1.002 1.003 1.00263 1.005 1.005 1.002 1.00253 1.002 1.00463 1.005 -1.1 -1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.1 3.2 3.3 0.99822 1.00169 0.99936 1.004 1.00556 1.00449 0.9988 1.00128 1.00034 1.004 1.006 1.00345 0.999 1.001 1.001 1.00333 1.006 1.0024 0.99984 1.001 1.001 1.003 1.00532 1.00135 1.001 1.001 1.003 1.00428 1.001 1.00016 1.001 1.003 1.00324 1.00027 0.9991 1.001 1.00219 1.003 0.999 0.99911 1.001 1.00115 1.00216 1.00082 0.999 0.999 1.0001 1.00011 1.00112 1.001 0.999 0.99995 0.99906 1.00008 1.001 0.999 0.999 1 1.00004 1 1 1 1.00097 0.99997 1 0.99996 1 0.999 0.99993 0.99881 0.99994 0.99992 0.99879 0.99911 0.99686 0.99908 0.999 0.99727 0.99985 0.99984 0.99582 0.999 0.999 0.999 0.999 0.995 1.00012 0.99916 0.9992 0.999 0.99876 0.995 1.00086 0.99931 0.999 0.998 0.995 1.00016 0.997 0.999 0.998 0.995 1.001 0.9979 0.999 0.99836 0.995 1.001 1.00028 0.99864 0.999 0.99455 1.001 1.001 0.99964 0.998 0.999 0.994 1.001 1.001 0.999 0.99756 0.99852 0.99346 1.001 1.001 0.999 0.997 0.99748 0.99242 1.00128 1.00139 0.99946 0.99649 0.997 0.99137 1.0017 1.00158 1.00049 0.996 0.9976 0.99033 1.00132 1.001 1.00047 0.99658 0.998 0.99 1.002 1.001 0.99944 0.997 0.998 0.98924 1.002 1.00151 0.9996 0.997 0.998 0.989 1.002 1.00146 1.00063 0.9977 0.99724 0.989 1.0024 1.00156 1.00034 0.99727 0.997 0.989 1.003 1.00141 0.99931 0.997 0.997 0.989 1.003 1.001 0.99972 0.9962 0.99612 0.98998 1.00254 1.001 0.996 0.996 0.98898 1.002 1.001 0.99512 0.996 0.98793 1.002 1.0003 0.99918 0.99408 0.995 0.98677 1.00148 0.99643 0.99305 0.99296 0.98468 1.001 0.99924 0.99334 0.99201 0.99183 0.98258 1.00044 0.99743 0.993 0.98996 0.98963 0.98025 0.99942 0.99374 0.99108 0.98775 0.98653 0.97712 0.9978 0.99131 0.98704 0.98363 0.98301 0.97365 0.99576 0.9858 0.98188 0.97905 0.9778 0.96946 0.99307 0.98231 0.97569 0.97177 0.97203 0.96444 0.99001 0.97458 0.96916 0.96412 0.96442 0.95819 96 1.002 1.002 1.00154 1.004 1.00464 1.002 1.002 1.001 1.00353 1.00359 1.00133 1.002 1.001 1.00247 1.003 1.0017 1.00071 1.00039 1.00142 1.003 1.00126 1 1.001 1.00359 1.00085 1.001 1 1.00032 1.004 1.001 1.001 1 1.00329 1.001 1.001 1.0008 1.00223 1.00008 1.001 1.001 1.002 1.001 1.00009 0.99911 1.00112 1.001 1 0.999 1.001 1 1 1 1 0.999 1.001 0.99994 1.00005 1 0.999 1.00089 0.999 1.001 0.99973 0.999 0.99918 1.001 1.00015 0.99835 0.999 1 1.001 1.00119 0.999 1 1.001 1.002 0.999 0.99968 0.99965 1.00118 1.00252 1.00061 0.999 0.99863 0.99818 1.002 1.0034 1.002 0.999 0.99758 0.99606 1.002 1.002 1.002 0.999 0.997 0.995 1.00226 1.002 1.002 0.999 0.99753 0.99441 1.00329 1.00282 1.00248 0.999 0.99858 0.99464 1.004 1.004 1.003 0.99842 0.999 0.9943 1.004 1.004 1.003 0.998 0.999 0.99324 1.00472 1.00452 1.003 0.998 0.99974 0.99218 1.006 1.005 1.003 0.99873 0.992 1.00642 1.005 1.003 0.999 0.99916 0.99294 1.007 1.00564 1.003 0.99982 0.999 0.995 1.007 1.006 1.003 0.99805 0.995 1.007 1.006 1.003 0.998 0.995 1.00752 1.006 1.003 0.99903 0.99795 0.99483 1.008 1.006 1.00208 0.99898 0.99689 0.99377 1.00857 1.00518 1.00006 0.99793 0.99584 0.99243 1.009 1.005 0.998 0.99677 0.99479 0.98996 1.009 1.0041 0.99795 0.99466 0.99347 0.98679 1.00835 1.00119 0.99672 0.99234 0.99137 0.98407 1.008 0.99906 0.99346 0.98921 0.98889 0.98196 1.0073 0.99597 0.98928 0.98575 0.98532 0.97983 1.007 0.99285 0.98485 0.98121 0.98063 0.97707 1.00625 0.98958 0.97965 0.97554 0.97537 0.97249 1.00365 0.98426 0.9735 0.96879 0.96953 0.96645 1.00219 0.97806 0.96517 0.96096 0.96189 0.95927 1.00033 0.97161 0.9564 0.95198 0.95344 0.95101 0.99829 0.96387 0.94652 0.94135 0.94278 0.94251 3.4 3.5 3.6 3.7 3.8 3.9 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.1 7.2 7.3 7.4 7.5 0.98627 0.96729 0.95989 0.95428 0.95539 0.95036 0.98078 0.95818 0.94984 0.94262 0.94425 0.94037 0.97538 0.94886 0.9354 0.92953 0.93044 0.92754 0.96804 0.93442 0.92006 0.91362 0.91385 0.91156 0.95842 0.91979 0.90136 0.89416 0.8951 0.89344 0.94747 0.90205 0.88136 0.87303 0.87362 0.87173 0.93465 0.88015 0.85733 0.84987 0.8489 0.84803 0.91812 0.85613 0.83119 0.823 0.82174 0.82138 0.89492 0.82986 0.80182 0.79292 0.79236 0.79075 0.86786 0.80061 0.7709 0.76067 0.76 0.75858 0.83592 0.7677 0.73803 0.72632 0.72515 0.72342 0.79878 0.73092 0.70207 0.6904 0.68732 0.68461 0.75367 0.69117 0.66393 0.65146 0.64794 0.64592 0.70306 0.64858 0.62557 0.61169 0.60782 0.60425 0.64724 0.60528 0.58432 0.57058 0.56633 0.56198 0.58622 0.56101 0.54102 0.52925 0.52371 0.51594 0.521 0.5137 0.49707 0.486 0.48 0.47115 0.45373 0.46422 0.45342 0.44349 0.43729 0.42678 0.39055 0.41659 0.41125 0.40084 0.39458 0.38441 0.32982 0.37243 0.3699 0.36229 0.3523 0.34487 0.27724 0.3309 0.32944 0.32475 0.31353 0.30859 0.23112 0.29288 0.29249 0.28967 0.27747 0.27452 0.19308 0.25853 0.2581 0.2564 0.24333 0.2425 0.16143 0.22694 0.22584 0.22458 0.21113 0.21392 0.13641 0.19676 0.19542 0.19466 0.1826 0.18742 0.11488 0.16951 0.16929 0.16725 0.15634 0.16311 0.09794 0.14528 0.14645 0.14269 0.13269 0.14214 0.08353 0.12377 0.1248 0.12088 0.11213 0.1245 0.07258 0.10464 0.10538 0.1024 0.09433 0.11078 0.06296 0.0884 0.08976 0.08567 0.07871 0.09906 0.0548 0.07624 0.07464 0.07222 0.06581 0.08931 0.04752 0.0641 0.06256 0.06119 0.05556 0.08173 0.04242 0.0543 0.05242 0.05125 0.04689 0.07437 0.03732 0.04591 0.04333 0.04237 0.03994 0.06905 0.03257 0.03955 0.03527 0.03506 0.03441 0.06591 0.02887 0.03337 0.02861 0.02937 0.02996 0.06285 0.02581 0.02719 0.02376 0.02475 0.02659 0.06087 0.02316 0.023 0.01998 0.02121 0.02431 0.05967 0.02024 0.01896 0.01688 0.01873 0.02225 0.05779 0.01754 0.0169 0.01418 0.01666 0.02108 0.05675 0.01604 0.01476 0.01256 0.01529 0.01908 0.0557 0.0145 0.0119 0.01105 0.01426 0.018 0.055 97 0.99445 0.95429 0.93512 0.92917 0.9312 0.93309 0.99037 0.9436 0.92209 0.91453 0.91706 0.92121 0.98531 0.93153 0.90683 0.89804 0.90142 0.9053 0.97733 0.91683 0.88944 0.8796 0.88276 0.88797 0.96908 0.89939 0.86967 0.85997 0.86278 0.86853 0.95787 0.88029 0.84883 0.83821 0.84048 0.84675 0.94427 0.85812 0.8265 0.81421 0.81511 0.82283 0.9257 0.83325 0.80042 0.78925 0.78862 0.7973 0.90349 0.80653 0.77226 0.76082 0.76059 0.77096 0.8752 0.77797 0.74321 0.73119 0.73006 0.74293 0.8428 0.74633 0.71219 0.69989 0.69921 0.71263 0.80471 0.71187 0.67997 0.668 0.66687 0.67957 0.7604 0.67584 0.64764 0.63459 0.63276 0.64646 0.70888 0.63863 0.61194 0.60034 0.59802 0.61132 0.6524 0.59984 0.57735 0.565 0.56221 0.57463 0.59147 0.5595 0.5409 0.52974 0.52537 0.5366 0.52946 0.51749 0.50425 0.49333 0.48917 0.49958 0.46576 0.47575 0.46689 0.45771 0.45268 0.46237 0.40367 0.43408 0.43016 0.42211 0.41584 0.42764 0.34599 0.39674 0.39402 0.38805 0.3806 0.3937 0.2937 0.35932 0.36006 0.35625 0.34672 0.36112 0.24786 0.32533 0.32841 0.32479 0.31394 0.33074 0.20912 0.29219 0.29687 0.29488 0.28418 0.30161 0.17643 0.26125 0.2675 0.26625 0.25574 0.27483 0.14976 0.23267 0.24046 0.23783 0.22948 0.2498 0.12728 0.20621 0.21383 0.21225 0.20434 0.22639 0.10902 0.18256 0.18925 0.18794 0.18063 0.2052 0.09377 0.16038 0.1682 0.16566 0.1598 0.18566 0.08127 0.14057 0.14834 0.14582 0.14035 0.16789 0.07061 0.12369 0.12931 0.12805 0.12311 0.15301 0.06236 0.10885 0.11377 0.1124 0.10807 0.14078 0.05586 0.09624 0.09919 0.09811 0.09482 0.12991 0.05043 0.08484 0.08716 0.0855 0.08267 0.12023 0.04455 0.07395 0.07569 0.07347 0.07217 0.11252 0.0407 0.06412 0.06521 0.06356 0.06328 0.10507 0.03603 0.05592 0.05583 0.05517 0.05615 0.09987 0.03255 0.04929 0.04756 0.0476 0.05053 0.09668 0.03031 0.04306 0.04054 0.04128 0.04601 0.09352 0.02737 0.03755 0.03622 0.036 0.0418 0.09056 0.0252 0.03308 0.03101 0.03181 0.03844 0.08845 0.02314 0.02892 0.02628 0.0282 0.03528 0.08633 0.0211 0.02559 0.02315 0.02571 0.03308 0.08421 ... Nghiên cứu ứng dụng chùm xạ photon electron máy gia tốc Linac Primus xạ trị ung thư bệnh viện K Mục tiêu chúng tơi tìm hiểu rõ số đặc trưng chùm xạ photon electron máy gia tốc Linac Primus bệnh. .. QUỐC GIA HÀ NỘI TRƯỜNG ðẠI HỌC KHOA HỌC TỰ NHIÊN - NGUYỄN TIẾN QUÂN NGHIÊN CỨU ỨNG DỤNG CHÙM BỨC XẠ PHOTON VÀ ELECTRON TRÊN MÁY GIA TỐC LINAC PRIMUS TRONG XẠ TRỊ UNG THƯ TẠI BỆNH VIỆN K. .. tập trung, trường ðH Khoa học Tự nhiên, ðH Quốc gia Hà Nội Tơi xin cam đoan luận văn thạc sĩ ‘ Nghiên cứu ứng dụng chùm xạ photon electron máy gia tốc Linac Primus xạ trị ung thư bệnh viện K ’