摘要
位置灵敏型光电倍增管 (PS PMT)代表了基于单个管子的原理开发新概念γ相机的技术进步 .最近 ,日本滨松公司出品了一种新型紧凑型的PS PMT———R760 0 C1 2 .根据正电子放射断层成像系统 (PET)的应用特点 ,我们测试了由该PS PMT组合成的闪烁晶体阵列探测器的空间分辨率、空间线性度、增益均匀性及时间分辨率LSO与该PS PMT的组合空间分辨率达到1 .4mm ,而且显示出良好的空间线性、增益均匀性及优异的时间分辨特性 .
Position sensitive photomultiplier tube (PS PMT) represents a technological improvement in the development of new concept gamma cameras based on the principle of a single tube. Very recently, a new compact PS PMT, Hamamatsu R7600 C12, has been developed. The PS PMT has 11 stages of metal channel dynodes and 6( x )+6( y ) crossed plate anodes in a 25.7mm square ×20mm high metal can package, where the effective area is 22×22mm 2. Tests of spatial resolution, spatial linearity, gain uniformity and timing resolution were carried out by coupling the PS PMT to the LSO an GSO scintillators in terms of applicability to Positron Emission Tomography (PET) system. High spatial resolution of about 1.4mm is obtained by using LSO crystals coupled to the PS PMT, and the good spatial linearity, gain uniformity and timing resolution are also obtained.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2000年第9期875-879,共5页
High Energy Physics and Nuclear Physics
关键词
位置灵敏光电倍增管
探测器
PET
position sensitive photomultiplier tube, detector, positron emission tomography
