Collimation system for electron arc therapy

Details Collimation system for electron arc therapy Collimation system for electron arc therapy

1985-06-10

1986-07-01

Anderson, Bruce C.

Radiant energy

Radiation controlling means

Shields

G21C 1100

Patent

active

045982082

ABSTRACT:
An electron collimation system for electron arc therapy treatments consists of a slit collimation system which is movable with the electron beam applicator and is designed to allow for dose compensation in the sagittal direction and a hoop-and-clamp assembly for final field shaping. By correctly designing the shape of the slit in the former and properly adjusting the components of the latter, it is possible to accomplish quite uniform shielding without causing any weight of the shielding material to rest on the patient.

REFERENCES:
patent: 1574884 (1926-03-01), Hendricks
patent: 2718598 (1955-09-01), Graf
patent: 2720708 (1955-10-01), Snell
patent: 3466439 (1966-03-01), Setala
patent: 3649835 (1972-03-01), Brackenbrough et al.
patent: 4140129 (1979-02-01), Heinz et al.
patent: 4221971 (1980-09-01), Burger
patent: 4266139 (1981-05-01), Sportelli et al.
Pro. of Symposium on Electron Dosimetry and Arc Therapy, Sep. 10-11, 1981, "Tertiary Collimation of Moving Electron Beams"--Bruce Thomadsen.

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