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HOPG as powerful x‐ray optics
Author(s) -
Grigorieva I. G.,
Antonov A. A.
Publication year - 2003
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.617
Subject(s) - bent molecular geometry , crystal (programming language) , pyrolytic carbon , synchrotron radiation , x ray , graphite , optics , synchrotron , highly oriented pyrolytic graphite , diffraction , physics , materials science , magnitude (astronomy) , x ray optics , chemistry , computer science , astrophysics , organic chemistry , pyrolysis , composite material , programming language
Abstract A new method of producing strongly bent highly oriented pyrolytic graphite (HOPG) is presented. The method allows one to make a crystal of almost arbitrary shape, but has some thickness limits. A review of the results obtained on this type of crystal by different laboratories during the last 10 years is given. An x‐ray intensity gain from a synchrotron radiation source and Mo Kα tube beams of one order of magnitude could be achieved when using a crystal of optimized shape. The application of the crystals for secondary monochromatization in EDXRF improves by one order of magnitude the detection limits for the elements of interest. Copyright © 2003 John Wiley & Sons, Ltd.