1D X-ray Beam Compressing Monochromators

Journal Article · Tue Apr 06 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3399630· OSTI ID:21371769

Korytar, D; Dobrocka, E; Konopka, P; Zaprazny, Z ^[1]; Ferrari, C ^[2]; Mikulik, P ^[3]; Vagovic, P ^[4]; Ac, V ^[5]; Erko, A ^[6]; Abrosimov, N ^[7]

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1. Institute of Electrical Engineering, SAS, Vrbovska cesta 110, SK 92101 Piest'any (Slovakia)
2. CNR IMEM Institute, Parma (Italy)
3. Masaryk University, Brno (Czech Republic)
4. ISS FZK Karlsruhe (Germany)
5. TnUAD Trencin (Slovakia)
6. Bessy Berlin (Germany)
7. IKZ Berlin (Germany)

A total beam compression of 5 and 10 corresponding to the asymmetry angles of 9 deg. and 12 deg. is achieved with V-5 and V-10 monochromators, respectively, in standard single crystal pure germanium (220) X-ray beam compressing (V-shaped) monochromators for CuKalpha{sub 1} radiation. A higher 1D compression of X-ray beam is possible using larger angles of asymmetry, however it is achieved at the expense of the total intensity, which is decreased due to the refraction effect. To increase the monochromator intensity, several ways are considered both theoretically and experimentally. Linearly graded germanium rich Ge{sub x}Si{sub (1-x)} single crystal was used to prepare a V-21 single crystal monochromator with 15 deg. asymmetry angles (compression factor of 21). Its temperature gradient version is discussed for CuKalpha{sub 1} radiation. X-ray diffraction measurements on the graded GeSi monochromator showed more than 3-times higher intensity at the output compared with that of a pure Ge monochromator.

• OSTI ID: 21371769
• Journal Information: AIP Conference Proceedings, Vol. 1221, Issue 1; Conference: 20. international congress on X-ray optics and microanalysis, Karlsruhe (Germany), 15-18 Sep 2009; Other Information: DOI: 10.1063/1.3399630; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
43 PARTICLE ACCELERATORS
ASYMMETRY
BEAM OPTICS
COMPRESSION
COPPER
GERMANIUM
GERMANIUM SILICIDES
MONOCHROMATORS
MONOCRYSTALS
REFRACTION
TEMPERATURE GRADIENTS
X RADIATION
X-RAY DIFFRACTION
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELEMENTS
GERMANIUM COMPOUNDS
IONIZING RADIATIONS
METALS
RADIATIONS
SCATTERING
SILICIDES
SILICON COMPOUNDS
TRANSITION ELEMENTS