Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation
Patent
1992-03-31
1993-06-01
Dzierzynski, Paul M.
Radiant energy
Irradiation of objects or material
Ion or electron beam irradiation
2505051, 378148, 378150, 378151, 378152, G21K 104
Patent
active
052162559
ABSTRACT:
A system for applying radiation treatment under computer control is disclosed. The system has a radiation source, which generates a variable intensity radiation beam, and a collimator. The collimator has a plurality of movable plates disposed in the path of the radiation beam and is oriented in a direction perpendicular to the beam axis. The apparatus is capable of actuating the plates independently during the radiation treatment, in response to a first control signal. The beam changes in width when the plates are so actuated. The collimator is rotated in response to a second control signal. The intensity of the radiation beam may be varied as a function of the plate position. A total radiation dosage is applied during two intervals. The first interval precedes the collimator rotation, and the second interval follows the rotation.
REFERENCES:
patent: 4027167 (1977-05-01), Pollermann
patent: 4109154 (1978-08-01), Taumann
patent: 4140129 (1979-02-01), Heinz et al.
patent: 4343997 (1982-08-01), Heinz
patent: 4359642 (1982-11-01), Heinz et al.
patent: 4380820 (1983-04-01), Cutter
patent: 4581753 (1986-04-01), Rice
patent: 4672652 (1987-01-01), Huttenrauch et al.
patent: 4754147 (1988-06-01), Maughan et al.
patent: 4817125 (1989-03-01), Sklebitz
patent: 5008907 (1991-04-01), Norman et al.
patent: 5019713 (1991-05-01), Schmidt
"Automatic Variation of Field Size and Dose Rate in Rotation Therapy", Mantel et al., 2 J. Radiat. Oncol. Biol. Phys. 697 (1977), pp. 697-704.
"Wedge Shaped Dose Distribution by Computer Controlled Collimator Motion", Kijewski et al., 5 Med. Phys. 426 (1978), pp. 426-429.
"Computer Controlled Radiation Therapy", Levene et al., 129 Radiol. 769, (1978), pp. 769-775.
"Dose Optimization with Computer Controlled Gantry Rotation, Collimator Motion and Dose Rate Variation", Chin et al., 9 J. Radiat. Oncol. Biol. Phys. 723 (1983), pp. 723-729.
Dzierzynski Paul M.
Edelman Lawrence C.
Nguyen Kiet T.
Siemens Medical Laboratories
LandOfFree
Beam profile generator for photon radiation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Beam profile generator for photon radiation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam profile generator for photon radiation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1816680