Method and apparatus for proton therapy

Details Method and apparatus for proton therapy Method and apparatus for proton therapy

1996-10-01

1997-09-16

Anderson, Bruce

Radiant energy

Inspection of solids or liquids by charged particles

2505051, G01N 23225, H01J 37147, H01J 3730

Patent

active

056683715

ABSTRACT:
A method of proton tomotherapy provides uniform dose placement within a tumorous area on a slice by slice basis by locating a Bragg peak of the proton beam at the distal edge of the tumor and irradiating the tumor from a number of different angles without sweeping the range of the protons at the given angle. Uniform dose is provided by simultaneous intensity modulation of the beams. Treatment of the tumor in slices eliminates the need for a rotating gantry but allows the patient to be rotated instead. Accurate range placement is provided by a preliminary proton verification tomogram obtainable on the same equipment. A set of standard blocks permits this technique to be used with standard irradiation zones without additional range or intensity adjusting mechanism.

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patent: 4868843 (1989-09-01), Nunan
patent: 5012506 (1991-04-01), Span et al.
patent: 5019713 (1991-05-01), Schmidt
patent: 5166531 (1992-11-01), Huntzinger
patent: 5317616 (1994-05-01), Swerdloff et al.
patent: 5440133 (1995-08-01), Moyers et al.
Radiotherapy and Oncology, Journal of the European Society for Therapeutic Radiology and Oncology, vol. 15/2, 1989.

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