发明授权
- 专利标题： Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other
- 专利标题（中）： 用于屏蔽线性加速器和磁共振成像装置的方法和装置
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申请号： US12837309申请日： 2010-07-15
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公开(公告)号： US08836332B2公开(公告)日： 2014-09-16
- 发明人: Shmaryu M. Shvartsman , Gordon DeMeester , James F. Dempsey , John Lester Patrick
- 申请人： Shmaryu M. Shvartsman , Gordon DeMeester , James F. Dempsey , John Lester Patrick
- 申请人地址： US OH Oakwood Village
- 专利权人： ViewRay Incorporated
- 当前专利权人： ViewRay Incorporated
- 当前专利权人地址： US OH Oakwood Village
- 代理机构： Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- 主分类号： G01R33/421
- IPC分类号： G01R33/421 ; G01R33/48 ; G01R33/38 ; A61N5/10
摘要：
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.