Charged particle beam irradiation apparatus
US8304751B2 · kind B2 · utility
4Cited by
1References
6Claims
0Family size
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Key dates
| Filing date | May 12, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a charged particle beam irradiation apparatus to be adapted to a particle beam cancer treatment system or the like, a desired depth dose distribution is highly precisely created. In the charged particle beam irradiation apparatus that irradiates a particle beam, which is radiated from a particle beam generation unit, to a subject to be irradiated via a ridge filter exhibiting a cyclic thickness distribution for causing the particle beam to exhibit a desired energy distribution, the ridge filter has plural ridges thereof arranged to be perpendicular to entering directions of the particle beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.