发明名称 |
Collimation system for dual slice EBT scanner |
摘要 |
An electron beam tomography (EBT) scanning system comprising an electron source generating an electron beam, a target ring that receives the electron beam and emits an x-ray fan beam upon impingement of the electron beam on the target ring, a pair of detector arrays arranged opposite the target ring, and a collimator arranged concentrically between the target ring and the pair of detector arrays. The collimator has interior and exterior walls concentrically arranged with one another and surrounding a patient examination area. The interior and exterior walls have a first set of apertures aligned to collimate the x-ray fan beam into a first collimated beam having a first width and a second collimated beam having a second width. Each collimated beam may form a single or double tomographic slice. The collimated beams are detected by the pair of detector arrays.
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申请公布号 |
US6792077(B2) |
申请公布日期 |
2004.09.14 |
申请号 |
US20020064182 |
申请日期 |
2002.06.19 |
申请人 |
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC |
发明人 |
RAND ROY E. |
分类号 |
A61B6/03;G21K1/02;G21K5/02;(IPC1-7):G21K1/02 |
主分类号 |
A61B6/03 |
代理机构 |
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地址 |
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