Jaw and circular collimator

Details Jaw and circular collimator Jaw and circular collimator

1998-08-17

2000-03-21

Porta, David P.

X-ray or gamma ray systems or devices

Beam control

Collimator

378 65, G21K 102

Patent

active

060411015

ABSTRACT:
A collimator apparatus for a treatment planning machine that delivers a beam. A circular collimator defines a circular aperture for the beam. At least one movable collimator jaw is moved into the projection of the circular aperture with respect to the beam in order to eclipse a portion of the beam.

REFERENCES:
patent: 4897861 (1990-01-01), Schafer et al.
patent: 5166531 (1992-11-01), Huntzinger
patent: 5563925 (1996-10-01), Hernandez

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