Development of three-dimensional gamma camera with imaging plates and multi-pinhole collimators

被引:7
|
作者
Yamamura, N [1 ]
Uritani, A
Watanabe, K
Kawarabayashi, J
Iguchi, T
机构
[1] Nagoya Univ, Sch Engn, Dept Nucl Engn, Nagoya, Aichi 4648603, Japan
[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
关键词
imaging plate; gamma camera; multi-pinhole collimator; three-dimensional back-projection;
D O I
10.1016/S0168-9002(03)01151-3
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have developed a novel multi-pinhole-type gamma camera for imaging low-energy gamma-ray emitters. The gamma camera consists of Imaging Plates (IPs) and multi-pinhole collimators made of a lead plate with many pinholes in lattice arrangement. The three-dimensional spatial distribution of a gamma-ray source is reconstructed by using a stereoscopic back-projection technique, where the directions of gamma-ray incidence are determined with the digitized two-dimensional images' on the IPs and the configuration of the multi-pinhole collimators. The horizontal and vertical spatial resolutions for a point-like Co-57 source evaluated with simulations are 1.5 and 2.5 mm, respectively. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:577 / 581
页数:5
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