Particle beam therapy system
US9776019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Mar 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H2007/004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A particle beam therapy system is disclosed which includes: a synchrotron accelerating a charged particle beam injected from a pre-accelerator up to a predetermined energy level before applying a high-frequency voltage to an extraction device to extract the charged particle beam caused to exceed a stability limit; a beam transportation system transporting the charged particle beam extracted from the synchrotron up to a treatment room, and an irradiation device irradiating a patient in the treatment room with the charged particle beam in conformity to the patient's tumor shape. The synchrotron has functionality to accelerate or decelerate the charged particle beam successively to extract the charged particle beam at a plurality of energy levels during an extraction phase of the synchrotron, the beam transportation system further having functionality to block off an unnecessary charged particle beam extracted from the synchrotron during acceleration or deceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.