Particle beam irradiation apparatus and particle beam therapy system
US8586948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jun 22, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A particle beam irradiation apparatus comprises a particle beam shielding member which shields a part of a particle beam which is scanned, a prompt signal detector which detects a prompt signal which is generated when the particle beam which is scanned collides with the particle beam shielding member and a signal comparison device which predicts and obtains a generation pattern of a prompt signal which is generated with a predetermined scanning pattern and stores as a signal time pattern for comparison, wherein the signal comparison device detects an abnormality of scanning of a particle beam or the particle beam shielding member by comparing a detected signal time pattern which is a time pattern of a signal which is detected by the prompt signal detector to a signal time pattern for comparison which is stored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.