Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
US10463883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Apr 23, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.