发明名称 |
SYSTEM AND METHOD FOR REGULATING DELIVERED 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 radiationsource and an object so that the radiation output has a constant output factor over an irradiation field, regardless of the size of the opening. The output factor is defined as the ratio of the radiation output in air with a scatterer (such as shielding plates) in the beam path to the radiation output without the scatterer for a reference field.
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申请公布号 |
CA2181524(A1) |
申请公布日期 |
1997.01.21 |
申请号 |
CA19962181524 |
申请日期 |
1996.07.18 |
申请人 |
SIEMENS MEDICAL SYSTEMS, INC. |
发明人 |
HUGHES, JOHN H. |
分类号 |
A61B6/06;A61N5/10;(IPC1-7):A61N5/10 |
主分类号 |
A61B6/06 |
代理机构 |
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主权项 |
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地址 |
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