Simplified image reconstruction method in 4π Compton imaging for radioactive source identification
| Autor: | Ryohei Terabayashi, Hideki Tomita, Tetsuya Shimoyama, Shintaro Hara, Atsushi Mukai, Kenji Shimazoe, Keita Yamagishi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
010308 nuclear & particles physics business.industry Point source Astrophysics::High Energy Astrophysical Phenomena Radioactive source Detector 0211 other engineering and technologies Gamma ray 02 engineering and technology Iterative reconstruction 01 natural sciences Identification (information) Optics 0103 physical sciences Lookup table 021108 energy business Projection (set theory) |
| Zdroj: | SII |
| DOI: | 10.1109/ieeeconf49454.2021.9382624 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|