학술논문
Simplified image reconstruction method in 4π Compton imaging for radioactive source identification
Document Type
Conference
Author
Source
2021 IEEE/SICE International Symposium on System Integration (SII) System Integration (SII), 2021 IEEE/SICE International Symposium on. :105-109 Jan, 2021
Subject
Language
ISSN
2474-2325
Abstract
We proposed a simplified image reconstruction method in 4$\pi$ Compton imaging to determine the intensity and location of point-like gamma-ray sources. The proposed method can be quickly done by fixing an apex of each Compton cone to a center of a Compton imaging detector and using a lookup table of cone projection profiles for all possible combinations. Using a prototype CdTe array detector with the proposed reconstruction method, 4$\pi$ Compton images for a 137Cs gamma-ray point source far from the detector were obtained. Also, the identification of a 137Cs point source in a plastic box was successfully demonstrated.