Radiation collimator for use with high energy radiation beams

Details Radiation collimator for use with high energy radiation beams Radiation collimator for use with high energy radiation beams

1976-12-17

1978-04-25

Borchelt, Archie R.

Radiant energy

Radiation controlling means

250511, 250513, G21F 504

Patent

active

040864944

ABSTRACT:
A collimator for use with a beam of radiation, and in particular, for use in controlling the cross-sectional size and shape of the radiation beam and intercepting undesired off-focus radiation in an x-ray apparatus. The collimator is adapted to be positioned adjacent the source of radiation and embodies a plurality longitudinally extending leaves pivotally mounted on and between two supports, the leaves moveable about their pivots to close overlapping relation to effectively define a hollow cone. The cone defines an aperture at its narrow end which can be adjusted in size and shape by rotation of the two supports which are adaptable to being moved one relative to the other, to thereby cause an expansion or contraction of the hollow cone and correspondingly an increase or decrease of the cross-sectional size and/or shape of the radiation beam passing through the aperture.

REFERENCES:
patent: 3448270 (1969-06-01), Peyser
patent: 3609370 (1969-12-01), Peyser
patent: 4034228 (1977-07-01), Arauner

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