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Compton scattering experiments with monochromatic W K α 1 radiation
Author(s) -
Manninen S.,
Honkimäki V.,
Suortti P.
Publication year - 1992
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889891012517
Subject(s) - monochromatic color , physics , compton scattering , beam (structure) , radiation , photon , optics , spectrometer , photon energy , atomic physics , scattering , nuclear physics
Construction and performance of a spectrometer based on a high‐voltage generator and W‐anode X‐ray tube are described. W Kα 1 radiation is monochromated using a bent Ge (400) crystal. The obtained monochromatic flux is 10 7 photons s −1 and the beam size at the focal point 15 × 0.5 mm. Comparison is made with a 241 Am γ‐ray source, which has an almost equal photon energy. The W Kα 1 beam does not exhibit the low‐energy tail typical for the γ‐ray source but, on the other hand, a small contribution of doublet energy was observed. Directional Compton profiles of pyrolytic graphite were measured with both sources and essentially the same features were found.