Modern Developments in X-Ray and Neutron Optics Episode 1 docx

... 10 4 6.4 .1 DiffractionfromaDielectricCorner 10 5 6.4.2 DiffractioninaDielectric FCWaveguide 10 6 6.5 Conclusions 10 9 References 11 0 7 Focusing Optics for Neutrons F. Ott 11 3 7 .1 Introduction 11 3 7.2 ... CharacteristicsofNeutronBeams 11 4 7.3 Passive Focusing: Collimating Focusing . . . . . . . . . . . . . . . . . . . . . . . . 11 5 7.4 CrystalFocusing 11 7 7.4 .1 FocusingMo...

Ngày tải lên: 13/08/2014, 05:22

... showing both multilayer mirrors. The illuminated (active) angular zone and the smallest angles of incidence (for p = q) are indicated by dotted lines 10 11 12 13 14 15 16 0.30 0.35 0.40 10 11 12 13 14 15 16 0.28 ... outermost layer, Δn 1  1+ n 2 1 + k 2 1  k 1 +Δk 1  1 − n 2 1 − k 2 1  n 1 > 0, (25 .14 ) and for the inner layers Δn i 1 Δk i <...

Ngày tải lên: 13/08/2014, 05:22

... P 2 Sign (concave/convex) 01/ 11 / 11 / 11 1 F x − (a 11 x + a 12 y + a 13 z + a 14 ) 0 −x/0 −x −a 11 x −a 11 x F y − (a 22 y · sign + a 12 xa 23 z + a 24 ) 1 ρ · sign R · sign y 0 − yy 0 − y F z − (a 33 z + a 13 x ... 35 0246 810 1 214 0.0 0.2 0.4 0.6 0.8 1. 0 -15 deg 15 deg s-Reflectivity θ − θ B (arcsec) Si ( 311 ) 10 keV 0 deg Fig. 2 .14 . Rocking curves of Si(...

Ngày tải lên: 13/08/2014, 05:22

... locations in the beamline Position in beamline Horizontal Vertical width width (mm) (mm) SRW PHASE SRW PHASE At nominal “focus” of first mirror 10 . 911 .11 2. 011 .3 At position of collimating mirror 38 .13 7.043.936.9 2 ... [7 10 ]. The interest in WGs results from their ability to provide coherent beams as small as 10 nm [11 ,12 ], accepting the full coherent phase space volume of t...

Ngày tải lên: 13/08/2014, 05:22

... <1mm 1mm <1mm <1mm <1mm <50 μm <50 μm Wavelength band 2 nm 0.2 1 nm 1 ˚ A1 ˚ A0 .1 ˚ A1 ˚ A5 ˚ A Efficiency 90% 80% 20–50% 50% 10 0% 30% 30% Focal distance 10 0 mm 40 mm 4 m 4 m 1 ... for refractive optics Element δ ( 10 −6 ) β ( 10 12 ) δ/β (a.u.) Comment Be 15 0.07. 31 20.5 Handling difficult C 18 6.24.9 38 Diamond Mg 36.8 21. 51. 7 Al 33.0 11 0 0.3 Si 33.068...

Ngày tải lên: 13/08/2014, 05:22

... Sci. Instrum. 63 (1) , (19 92) 14 . R. Signorato, M. Sanchez del Rio, in Proceedings of SPIE, vol. 315 2, 19 97, p. 13 6 8 Volume Effects in Zone Plates 16 5 0 20406080 10 0 12 0 14 0 16 0 x-axis / nm 40 80 12 0 16 0 200 240 280 zone ... according to (8.9) with the theory of thin gratings only 11 .6% diffraction efficiency is obtained at 256 nm height for L:S = 10 nm:30 nm and L...

Ngày tải lên: 13/08/2014, 05:22

... plane–elliptical demonstration 11 The Nanometer Optical Component Measuring Machine 19 9 Fig. 11 .7. Principle of 3D-mapping (dimensions in millimeter) Fig. 11 .8. NOM 3D-measurement on a 310 × 11 8 mm 2 Zerodur ... 0. 01 μrad rms or 0.5 nm rms in height over a scan length of 480 mm at the center line of the sample (Fig. 11 .4). 19 8 F. Siewert et al. 1, 0E-07 1, 0E-06 1, 0E-05...

Ngày tải lên: 13/08/2014, 05:22

... <1MeV ΔE/E White beam 10 −2 White beam 10 −3 10 −3 10 −3 Δ 36 nm [12 ] 45 nm [13 ] 50 nm [14 ] 250 nm [15 ] 40 × 25 nm 2 [16 ] 30 nm [17 ] 50 nm [18 ] E, energy range; ΔE/E, energy bandwidth; Δ, best measured ... ≈ Δn(λ) 2sin 2 ϑ i . (16 .1) Owing to the very small deviation of the real part of n from unity in X- rays (δ =10 −4 10 −5 , depending on the photon energy and th...

Ngày tải lên: 13/08/2014, 05:22

... (b)Knife-edgetestat9keV.Verticalspotsizeis4.5 μm FWHM and horizontal is 6.5 μmFWHM a) b) 7000 7200 7400 7600 7800 8000 0.0 0.5 1. 0 1. 5 Energy (eV) 710 0 711 0 712 0 713 0 714 0 715 0 0.0 0.2 0.4 0.6 0.8 1. 0 1. 2 1. 4 1. 6 Fluorescence Energy ... (2004) 16 . B. Kanngießer, W. Malzer, A.F. Rodriguez, I. Reiche, Spectrochim. Acta B 60, 41 (2005) 310 S. Lagomarsino et al. y [mm]...

Ngày tải lên: 13/08/2014, 05:22

... in the rows with 17 and with hypothetical 33 prisms, respectively. With the rocking curve centered on the incident beam the refracted intensity from rows 13 17 (Fig. 21. 7b) and 26–29 (Fig. 21. 7d) ... air gap. In (b )and( c) rows 13 17 from the upper lens half and in (d) and (e) the last four rows 26–29 are shown. In (a), (b), and (d) are obtained with the maximum of the...

Ngày tải lên: 13/08/2014, 05:22