X-ray or gamma ray systems or devices – Specific application – Fluorescence
Patent
1985-09-25
1990-10-09
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Fluorescence
378160, G01N 23223
Patent
active
049625179
ABSTRACT:
An X-ray device comprising an X-ray tube (1); a shutter (9) which is movable between an open position (not shown) in which X-rays from the X-ray tube (1) may be directed onto material (8) to be tested and a closed position (shown in FIG. 1) in which the said X-rays are prevented from being so directed; an X-ray detector (4) for detecting fluorescent X-rays emitted by said material (8) when the shutter (9) is open; means (2) movable with the shutter (9) for receiving X-rays from the X-ray tube (1) and for directing fluorescent X-rays onto the X-ray detector (4) when the shutter (9) is closed; and correction means (11-14) connected to said X-ray detector (4) for automatically correcting a change in the X-rays produced by the X-ray tube (1).
REFERENCES:
patent: 4362935 (1982-12-01), Clark, III
Adams Bruce L.
Church Craig E.
Seiko Instruments Inc.
Wilks Van C.
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