Replacement of monochromator and proportional gas counter by mercuric iodide detector in X‐ray powder diffraction | Zendy

Nissenbaum J. | Zendy; Levi A. | Zendy; Burger A. | Zendy; Schieber M. | Zendy

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Replacement of monochromator and proportional gas counter by mercuric iodide detector in X‐ray powder diffraction

Author(s) -

Nissenbaum J.,

Levi A.,

Burger A.,

Schieber M.

Publication year - 1983

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/s0021889883010067

Subject(s) - monochromator , proportional counter , tetragonal crystal system , detector , x ray detector , crystallite , x ray , particle detector , radiation , analytical chemistry (journal) , optics , powder diffraction , materials science , iodide , resolution (logic) , chemistry , physics , crystallography , crystal structure , wavelength , organic chemistry , chromatography , artificial intelligence , computer science

Low‐resolution and therefore low‐cost mercuric iodide detectors have successfully been applied to replace the combination of a graphite monochromator and a proportional gas radiation counter used in X‐ray diffractometers. The mercuric iodide detector requires a lower DC bias of only 200 V rather than the 1500 V bias needed for the proportional gas counter. The much better stopping power of HgI 2 allows higher counting efficiency and therefore a better signal‐to‐noise ratio. Results are shown for X‐ray powder diffractions of polycrystalline cubic silicon and tetragonal HgI 2 .

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