Dynamic multivane electron arc beam collimator

Details Dynamic multivane electron arc beam collimator Dynamic multivane electron arc beam collimator

1989-05-03

1992-11-03

Berman, Jack I.

Radiant energy

Radiation controlling means

2504423, 378152, 378151, 378147, 378 65, G21K 104

Patent

active

051608472

ABSTRACT:
This invention is a dynamic multivane electron arc beam collimator having collimation vanes, means for controlling the vanes, and local controllers at the collimation site which dynamically define an electron aperture which defines the electron field of an electron beam emitted by a linear accelerator during electron arc therapy. The collimator can be attached to or detached from the head of a linear accelerator. The collimator provides for improvement in electron arc therapy dose uniformity.

REFERENCES:
patent: 4868843 (1989-09-01), Nunan
Leavitt et al., Int. J. Radiation Oncology Biol. Phys., vol. 11, May 1985, pp. 987-999.
McNeely et al., Int. J. Radiation Oncology Biol. Phys., vol. 14, Jun. 1988, pp. 1287-1294.
Leavitt et al., Proceedings of the 9th International Conference on the Use of Computers in Radiation Therapy, Jun. 1987, pp. 149-152.
Leavitt et al., Int. J. Radiation Oncology Biol. Phys., vol. 16, Feb. 1989, pp. 489-496.
Leavitt, Proceedings of the Twelfth Varian Users' Meeting, May 3, 1988, pp. 63-67.
Leavitt et al., "Electron Arc Therapy: Design, Implementation and Evaluation of a Dynamic Multi-Vane Collimator System", 30th Ann. Meeting of the Am. Soc. of Therapeutic Radiation and Oncology, Oct. 11, 1988.

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