New Photonis XP20D0 photomultiplier for fast timing in nuclear medicine
New Photonis XP20D0 photomultiplier for fast timing in nuclear medicine
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用于核医学快速计时的新型 Photonis XP20D0 光电倍增管
DOI：
10.1016/j.nima.2006.05.054
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发表时间：
2006
影响因子：
1.4
通讯作者：
P. Lavoute
中科院分区：
文献类型：
--
作者：
M. Moszynski;M. Gierlik;M. Kapusta;A. Nassalski;T. Szczesniak;C. Fontaine;P. Lavoute
随着人们对飞行时间正电子发射断层扫描（TOF PET）的兴趣日益增长，人们开始研究一种新型的Photonis XP20D0光电倍增管，该光电倍增管在阳极配备了屏蔽栅，可用于LSO和LaBr3晶体的快速计时。在BaF_2晶体的符合实验中，用LaBr_3和LSO晶体分别对511keV湮没量子获得了200± 4ps和210±4ps的高时间分辨。它反映了XP20D0的网格和高量子效率的重要性。在目前的实验中观察到的高时间分辨率使得TOF PET的发展具有良好的前景。
Growing interest in the time-of-flight positron emission tomography (TOF PET) prompts the study of a new Photonis XP20D0 photomultiplier, equipped with a screening grid at the anode, in application to a fast timing with LSO and LaBr3crystals. The high time resolution of 200±4 and 210±4ps was obtained for 511keV annihilation quanta using LaBr3and LSO crystals in the coincidence experiment with a small BaF2crystal, respectively. It reflects an importance of the grid and high quantum efficiency of the XP20D0. A high-time resolution observed in the present experiments makes good prospects for a development of TOF PET.