Performance of a prototype of liquid xenon scintillation detector system for positron emission tomography

被引：17
|
作者：
Nishikido, F [1 ]
Doke, T [1 ]
Kikuchi, J [1 ]
Mori, T [1 ]
Takizawa, K [1 ]
Yamamoto, M [1 ]
机构：
[1] Waseda Univ, Adv Res Inst Sci & Engn, Kikui Branch, Shinjuku Ku, Tokyo 1620044, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 02期
关键词：
positron emission tomography; liquid xenon; scintillation detector; time of flight; time resolution;
D O I：
10.1143/JJAP.43.779
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Liquid Xe as a scintillator has a very fast response. The scintillation light decays with 2.2 ns and 22 ns, and the recombination light for gamma-rays decays with 45 ns. Also, the scintillation yield is very high, comparable to that of NaI(T1) crystals. These properties are considered to be advantageous for application to time of flight-positron emission tomography (TOF-PET). From this perspective, a prototype for a TOF-PET system which consists of two identical liquid xenon detectors has been constructed using liquid Xe as scintillator material and its energy resolution, position resolution and the time resolution were measured. The energy resolutions of 29.9% and 32.4% and position resolutions of 4.8 mm and 9.4 mm were obtained for the two identical detectors, respectively, and a time resolution of 650ps between the two detectors was obtained for 511 keV gamma rays from positron annihilation. The future development of liquid Xe TOF-PET is discussed.
引用
收藏
页码：779 / 784
页数：6
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