Method and system for scanning a beam of charged particles to co

Details Method and system for scanning a beam of charged particles to co Method and system for scanning a beam of charged particles to co

1980-04-28

1981-10-13

Anderson, Bruce C.

Radiant energy

With charged particle beam deflection or focussing

With target means

2504922, G01K 108, G01N 2300

Patent

active

042950481

ABSTRACT:
A method and system for scanning a beam of charged particles to control radiation dose distributions is implemented by deflecting the beam through a plurality of positions across a conveyor path along which an object to be irradiated is moved, and controlling the length of time the beam remains at each position in accordance with the radiation dose required at each position. The beam may be deflected by a single magnet beam scanning device supplied with a drive signal having a steplike waveform or by a series of sequentially operated, controllable deflection magnets arranged along a beam pipe to sequentially deflect the beam toward the object to be irradiated from different positions.

REFERENCES:
patent: 2680815 (1954-06-01), Burrill
patent: 2741704 (1956-04-01), Trump et al.
patent: 3109931 (1963-11-01), Knowlton et al.
patent: 3687716 (1972-08-01), Steigerwald
patent: 4021675 (1977-05-01), Shifrim et al.

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