Johannes Breuer,Ronald Grazioso,James Corbeil,Nan Zhang,Matthias J. Schmand
申请号：
US12260966
公开号：
US09606199B2
申请日:
2008.10.29
申请国别(地区):
US
年份:
2017
代理人:
摘要：
An automated blood sampling system for PET imaging applications that can be operated in or very near to the field of view (FOV) of an MR scanner, such as in a combined MR/PET imaging system. A radiation detector uses APDs (avalanche photo-diodes) to collect scintillation light from crystals in which the positron-electron annihilation photons are absorbed. The necessary gamma shielding is made from a suitable shielding material, preferably tungsten polymer composite. Because the APDs are quite small and are magnetically insensitive, they can be operated in the strong magnetic field of an MR apparatus without disturbance.
