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Comparison of highly oriented pyrolytic and ordinary graphite as polarizers of Mo Kα radiation in EDXRF
Author(s) -
Kanngiesser Birgit,
Beckhoff Burkhard,
Swoboda Walter
Publication year - 1991
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300200615
Subject(s) - polarizer , graphite , pyrolytic carbon , materials science , highly oriented pyrolytic graphite , excitation , radiation , collimated light , analytical chemistry (journal) , optics , pyrolysis , composite material , physics , chemistry , organic chemistry , birefringence , quantum mechanics , laser
Highly oriented pyrolytic graphite (HOPG) and ordinary graphite were compared with respect to detection limits as excitation targets in a triaxial EDXRF set‐up. HOPG as a Bragg polarizer of Mo Kα x‐rays did not show appreciable advantages over ordinary graphite as a Barkla scatterer. Under relatively wide collimation conditions necessary to obtain a sufficient count rate in analytical practice, HOPG acts mainly as a Barkla scatterer.