Contour collimator

Details Contour collimator Contour collimator

1991-06-06

1992-11-17

Anderson, Bruce C.

Radiant energy

Radiation controlling means

378150, H01J 3709

Patent

active

051651068

ABSTRACT:
In a contour collimator for radiation therapy, a variable aperture is formed by two stacks of aperture plates, which are mounted opposite one another. The aperture plates are connected to a setting mechanism in order to alter the aperture created between the opposed aperture plates. All the aperture plates of each stack are arranged on a respective axle. The aperture plates can be rotated individually around the axles and into the aperture.

REFERENCES:
patent: 4027167 (1977-05-01), Pollermann
patent: 4055770 (1977-10-01), Milcamps et al.
patent: 4121109 (1978-10-01), Taumann et al.
patent: 4140129 (1979-02-01), Heinz et al.
patent: 4220866 (1980-09-01), Taumann et al.
patent: 4324979 (1982-04-01), Bewley et al.
patent: 4450578 (1984-05-01), Hill
patent: 4463266 (1984-07-01), Brahme
patent: 4794629 (1988-12-01), Pastyr et al.

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