Heavy ion radiation therapy system with stair-step modulation
US8269196B2 · kind B2 · utility
2Cited by
25References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for modulating a fan beam for radiation treatment employs shutters that may move rapidly into and out of different beamlets of a fan beam, the shutters having a systematic weighting so that a limited number of shutters may obtain a far greater number of regularly spaced energy reductions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.