Multichannel x-ray spectrometer

Details Multichannel x-ray spectrometer Multichannel x-ray spectrometer

1987-11-04

1989-07-25

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Fluorescence

378 45, 378 83, 378147, G01N 23223

Patent

active

048521353

ABSTRACT:
A multichannel X-ray spectrometer includes an X-ray tube with a transmission target and a holder for a specimen placed opposite the target, and spectrometric channels arranged around the specimen. These spectrometric channels include, successively arranged downstream fluorescent X-rays of the specimen, a common inlet annular slit with a radius R, focusing analyzer crystals, outlet slits, and detectors of X-rays. The common annular slit is spaced from the reference surface of the holder to a distance h equal to 0.5 R, where R is 0.5 dD/2L, where d is the diameter of the outlet port of the transmission target, D is the diameter of the fo-fusing ring of the focusing analyzer crystals, and L is the length of one of the focusing analyzer crystals.

REFERENCES:
patent: 2897367 (1959-07-01), Andermann et al.
patent: 3100261 (1963-08-01), Bigelow
patent: 4417355 (1983-11-01), Anisovich et al.
patent: 4649557 (1987-03-01), Hornstra et al.
Arl, USA Quantometer-72000, 1980.
V/O Techsnabexport, USSR, Portativny Avtomatichesky Mnogokanalyn Rentgenovsky Spktrometre Ark, Moscow 1981.

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