发明名称 |
IMPLEMENTATION OF WAVELENGTH SHIFTERS IN PHOSWICH DETECTORS |
摘要 |
A phoswich device for determining depth of interaction (DOI) includes a wavelength shifting layer between first and second scintillators of different scintillation materials and having different decay time characteristics. The wavelength shifting layer allows a true phoswich device to be constructed where the emission wavelength of one scintillator is in the peak excitation band of the other scintillator, by shifting the scintillation light outside of this excitation band to prevent scintillation light of one scintillator from exciting a response in the other scintillator, thus enabling unique identification of the location of a gamma photon scintillation event. The phoswich device is particularly applicable to positron emission tomography (PET) applications.
|
申请公布号 |
US2009121141(A1) |
申请公布日期 |
2009.05.14 |
申请号 |
US20080110554 |
申请日期 |
2008.04.28 |
申请人 |
SIEMENS MEDICAL SOLUTIONS USA, INC. |
发明人 |
ERIKSSON LARS A.;MELCHER CHARLES L.;GRAZIOSO RONALD |
分类号 |
G01T1/166;G01T1/164 |
主分类号 |
G01T1/166 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|