发明名称 |
Dual-purpose radiation transmission source for nuclear medicine imaging system |
摘要 |
A dual-purpose transmission source for use in a nuclear medicine imaging system is described. A Cs-137 point source is used to transmit radiation having a 662 keV photopeak to a corresponding detector during a transmission scan of an object. The Cs-137 source can be used in transmission scans for correcting either coincidence or single-photon emission data for non-uniform attenuation. When performing a transmission scan to correct single-photon emission data, a collimator may remain mounted to the detector, since a substantial portion of the transmitted radiation completely penetrates the radiation-absorbing material of the collimator to reach the detector.
|
申请公布号 |
US6100531(A) |
申请公布日期 |
2000.08.08 |
申请号 |
US19980062303 |
申请日期 |
1998.04.17 |
申请人 |
ADAC LABORATORIES |
发明人 |
HINES, HORACE H.;FARMER, IAN;NELLEMANN, PETER;SHAO, LINGXION;BERTELSEN, HUGO |
分类号 |
G01T1/164;G01T1/161;(IPC1-7):G01T1/161 |
主分类号 |
G01T1/164 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|