New design of a quasi-monolithic detector module with DOI capability for small animal pet

被引：35
|
作者：
Chung, Yong Hyun [1 ,2 ]
Lee, Seung-Jae [1 ]
Baek, Cheol-Ha [1 ,2 ]
Choi, Yong [3 ]
机构：
[1] Yonsei Univ, Coll Hlth Sci, Dept Radiol Sci, Wonju 220710, Kangwon Do, South Korea
[2] Yonsei Univ, Inst Hlth Sci, Wonju 220710, South Korea
[3] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Nucl Med, Seoul 135710, South Korea
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 593卷 / 03期
关键词：
PET; maximum likelihood position estimation; monolithic crystal; depth of interaction;
D O I：
10.1016/j.nima.2008.05.059
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report a new design of a detector module with depth of interaction (DOI) based on a quasi-monolithic LSO crystal, a multi-channel sensor, and maximum-likelihood position-estimation (MLPE) algorithm. Light transport and detection were modeled in a quasi-monolithic crystal using DETECT2000 code, with lookup tables (LUTs) built by simulation. Events were well separated by applying the MLPE method within 2.0 mm spatial resolution in both trans-axial and DOI directions. These results demonstrate that the proposed detector provides dependable positioning capability for small animal positron emission tomography (PET). (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：588 / 591
页数：4
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