发明名称 |
Apparatus and method for adjusting radiation in a radiation-emitting device |
摘要 |
In a radiation emitting device, particularly in a radiation treatment device, the actual radiation delivered to an object via a radiation beam is adjusted dependent on the dimensions of an opening in a plate arrangement provided between a radiation source and an object so that the radiation output has a constant wedge factor over an irradiation field, regardless of the size of the opening. The wedge factor is defined as the ratio between a reference radiation output along a reference axis of the beam with a predetermined physical wedge in the beam path and an actual radiation output of the beam in a substantiallylossless beam path.
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申请公布号 |
US5668847(A) |
申请公布日期 |
1997.09.16 |
申请号 |
US19960665153 |
申请日期 |
1996.06.13 |
申请人 |
SIEMENS MEDICAL SYSTEMS, INC. |
发明人 |
HERNANDEZ, FRANCISCO M. |
分类号 |
A61B6/06;A61N5/10;G21F5/04;G21K1/04;(IPC1-7):G21F5/04 |
主分类号 |
A61B6/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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