X-ray or gamma ray systems or devices – Beam control – Collimator
Patent
1983-04-04
1985-08-06
Smith, Alfred E.
X-ray or gamma ray systems or devices
Beam control
Collimator
378150, G21K 104
Patent
active
045340528
ABSTRACT:
The invention provides a block for partially limiting a radiation beam, allowing a first part of this beam to be limited corresponding to a first maximum half angle of opening.
This rectilinearly movable block comprises a cylindrical active surface.
Because of this active surface, said block defines new limits for the beam without modifying the starting orientation of this active surface in dependence on the positions which it may occupy through its rectilinear movement.
REFERENCES:
patent: 3151245 (1964-09-01), Wilson, Jr.
patent: 3980407 (1976-09-01), Hill
patent: 4157475 (1979-06-01), Stock et al.
C.G.R. - Mev
Fields Carolyn E.
Smith Alfred E.
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