X-ray analysis apparatus comprising an adjustable slit diaphragm

Details X-ray analysis apparatus comprising an adjustable slit diaphragm X-ray analysis apparatus comprising an adjustable slit diaphragm

1990-12-11

1992-05-19

Howell, Janice A.

X-ray or gamma ray systems or devices

Beam control

Collimator

378 81, 378153, G01N 2320, G21K 104

Patent

active

051154609

ABSTRACT:
An X-ray analysis apparatus comprises an adjustable entrance slit which consists of two laminations which are rotatable about axes extending parallel to a .theta.-axis. By choosing the radius of the laminations and their position in the X-ray beam, a substantially more accurate adjustment can be achieved notably for small .theta.-values. Moreover, asymmetry in the beam path can be simply compensated for and improved shielding against scattered radiation is achieved.

REFERENCES:
patent: 3852594 (1974-12-01), Paolini
patent: 4380820 (1983-04-01), Cutter
patent: 4466112 (1984-08-01), Covic et al.
patent: 4535469 (1985-08-01), Brandt

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