X-ray or gamma ray systems or devices – Beam control – Collimator
Patent
1981-09-21
1983-12-06
Smith, Alfred E.
X-ray or gamma ray systems or devices
Beam control
Collimator
378150, 378 40, A61B 614, G21K 102
Patent
active
044197640
ABSTRACT:
A slit collimator for use in a panoramic X-ray apparatus for the collimation of X-rays into a narrow fan-like beam. The collimation is achieved by means of a collimator slit formed in a trunion which is rotatable about its longitudinal axis and by rotating the trunion the effective radiation-penetrable size of the slit is varied.
REFERENCES:
patent: 3275831 (1966-09-01), Martin
patent: 3411000 (1968-11-01), Schliephake
patent: 4277685 (1981-07-01), Covic et al.
Grigsby T. N.
Instrumentarium Oy
Smith Alfred E.
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