Open AccessBent‐crystal monochromators for high‐energy synchrotron radiation
Author(s) -
Yamaoka Hitoshi,
Mochizuki Tetsuro,
Sakurai Yoshiharu,
Kawata Hiroshi
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049597018645
Subject(s) - bent molecular geometry , synchrotron radiation , synchrotron , high energy x rays , crystal (programming language) , energy (signal processing) , optics , physics , materials science , computer science , beamline , beam (structure) , quantum mechanics , composite material , programming language
Two kinds of monochromators covering the energy ranges 100–150 keV and ∼300 keV have been designed for inelastic (Compton) scattering experiments at the elliptical multipole wiggler beamline, BL08W, of SPring‐8. Finite‐element analyses using ANSYS for bent crystals indicate that thermal problems are not serious for the 300 keV monochromator, while an energy spread of about 10 −3 for the 100–150 keV monochromator is possible in the centre of the crystal. Detailed calculations of X‐ray interaction with the silicon crystal were performed. The results show that Compton scattering is a dominant process and deposits about 100 W continuously.