Primary radiation diaphragm for a radiation apparatus

Details Primary radiation diaphragm for a radiation apparatus Primary radiation diaphragm for a radiation apparatus

1993-08-30

1995-03-07

Porta, David P.

X-ray or gamma ray systems or devices

Beam control

Collimator

378147, 378152, G21K 104

Patent

active

053965337

ABSTRACT:
A primary radiation diaphragm for a radiation apparatus has at least one diaphragm plate which is adjusted in a plane extending perpendicular relative to the central ray of radiation. Each plate is provided with a single mount which engages a guideway disposed on the wall of the housing. Preferably, four plates are arranged in two pairs, with the first pair lying in a first plane and the second pair lying in a second plane extending parallel to the first pair, each of the plates of the pair has a single mount and the pair of plates of the first pair engage the same guideway, while the pair of the second plate engage a second guideway disposed on a wall of the housing extending at right angles to the first-mentioned wall.

REFERENCES:
patent: 2474422 (1949-06-01), Hollstein
patent: 3976887 (1976-08-01), Holzermer et al.
patent: 4534052 (1985-08-01), Milcamps
patent: 4691335 (1987-09-01), Telorack
patent: 5161176 (1992-11-01), Ebinuma et al.
patent: 5204892 (1993-04-01), Warden

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