Depth discrimination method based on a multirow linear array detector for push-broom Compton scatter imaging

Yantao Liu; Zhiming Zhang; Daowu Li; Chuangxin Ma; Cunfeng Wei; Meiling Zhu; Lei Shuai; Tingting Hu; Baotong Feng; Pei Chai; Xianchao Huang; Haohui Tang; Ting Li; Kai Zhuang; Xiaopan Jiang; Yingjie Wang; Yiwen Zhang; Wei Zhou; Shifeng Sun; Long Wei

doi:10.1016/j.apradiso.2013.09.001

Depth discrimination method based on a multirow linear array detector for push-broom Compton scatter imaging

Appl Radiat Isot. 2013 Dec:82:293-9. doi: 10.1016/j.apradiso.2013.09.001. Epub 2013 Sep 21.

Affiliation

¹ Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049, China. Electronic address: ytliu@ihep.ac.cn.

PMID: 24135636
DOI: 10.1016/j.apradiso.2013.09.001

Abstract

A depth discrimination method is devised based on a multirow linear array detector for push-broom Compton scatter imaging. Two or more rows of detector modules are placed at different positions towards a sample. An improved parallel-hole collimator is fixed in front of the modules to restrict their fields of view. The depth information could be indicated by comparing the signal differences. In addition, an available detector and several related simulations using GEANT4 are given to support the method well.

Keywords: Collimator; Compton scatter imaging; Depth discrimination; Detector; GEANT4.