Device and method for regulating intensity of beam extracted from a particle accelerator
US6873123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Jun 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H7/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a device (10) for regulating the intensity of a beam extracted from a particle accelerator, such as a cyclotron, used for example for protontherapy, said particles being generated from an ion source. The invention is characterized in that it comprises at least: a comparator (90) determining a difference ε between a digital signal IR representing the intensity of the beam measured at the output of the accelerator and a setpoint value IC of the beam intensity: a Smith predictor (80) which determines on the basis of the difference ε, a correct value of the intensity of the beam IP; an inverted correspondence table (40) supplying, on the basis of the corrected value of the intensity of the beam IP, a setpoint value IA for supply arc current from the ion source (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.