Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation
Reexamination Certificate
2004-04-13
2008-11-11
Berman, Jack I (Department: 2881)
Radiant energy
Irradiation of objects or material
Ion or electron beam irradiation
C250S505100
Reexamination Certificate
active
07449701
ABSTRACT:
Particle beam irradiation equipment and a method of adjusting irradiation nozzle, which can ensure a long range and high dose uniformity at any field size are provided. The particle beam irradiation equipment comprises charged particle beam generation equipment and an irradiation nozzle for irradiating a charged particle beam extracted from the charged particle beam generation equipment to an irradiation target. The irradiation nozzle comprises a first scatterer device including a first scatterer for spreading out the charged particle beam into a Gaussian-like distribution, and multiple stages of second scatterer devices including second scatterers for producing a uniform intensity distribution of the charged particle beam having been spread out into a Gaussian-like distribution by the first scatterer. For forming irradiation fields having sizes different from each other, the second scatterer devices are disposed downstream of the first scatterer device in the direction of travel of the charged particle beam at the spacing depending on the difference in the field size.
REFERENCES:
patent: 4095114 (1978-06-01), Taumann
patent: 4736106 (1988-04-01), Kashy et al.
patent: 4952814 (1990-08-01), Huntzinger
patent: 5010562 (1991-04-01), Hernandez et al.
patent: 5440133 (1995-08-01), Moyers et al.
patent: 7-51395 (1995-02-01), None
patent: 2001-170194 (2001-06-01), None
patent: 2001-212253 (2001-08-01), None
patent: 2003-135608 (2003-05-01), None
Chu et al., “Instrumentation for Treatment of Cancer Using Proton and Light-Ion Beams.” Review of Scientific Instruments, vol. 64, No. 8, pp. 2079-2083, Aug. 1993.
Akiyama Hiroshi
Fujimaki Hisataka
Matsuda Koji
Yanagisawa Masaki
Berman Jack I
Dickstein & Shapiro LLP
Hitachi , Ltd.
LandOfFree
Particle beam irradiation equipment and particle beam... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Particle beam irradiation equipment and particle beam..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle beam irradiation equipment and particle beam... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4049983