Development of a Position-Sensitive 4 pi Compton Camera Based on a Single Segmented Scintillator
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyounggun | - |
dc.contributor.author | Lee, Taewoong | - |
dc.contributor.author | Lee, Wonho | - |
dc.date.accessioned | 2021-08-30T07:03:30Z | - |
dc.date.available | 2021-08-30T07:03:30Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.issn | 0018-9499 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/51309 | - |
dc.description.abstract | Scintillator-based Compton cameras, which comprise of a separated scatter and absorption detectors, neglect the Compton scattering that is followed by a photoelectric effect in a single set of scintillators, wherein the detection efficiency is severely limited. In this study, we propose a 3-D position-sensitive Compton camera that uses a single set of scintillators, wherein radiation interactions inside the scintillator can be discriminated. The proposed Compton camera comprises a segmented lutetium-yttrium oxyorthosilicate scintillator coupled with two position-sensitive silicon photomultipliers on both sides. Compton image reconstruction algorithms, such as simple back-projection, list-mode maximum likelihood expectation maximization (MLEM), and filtered back-projection, were applied and compared. The single position-sensitive Compton camera identified the positions of multiple radiation sources with various energies in a 4 pi field of view. The signal-to-noise ratio (SNR) and full-width at half-maximum (FWHM) of a reconstructed 511-keV point source were approximately 12 degrees and 22 degrees, respectively, after MLEM was applied, and the two 511-keV sources with an angle difference of 40 degrees were separately reconstructed. The intrinsic efficiency of the proposed Compton camera was 2.23 x 10(-2) for 511 keV. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | RECONSTRUCTION | - |
dc.subject | EMISSION | - |
dc.title | Development of a Position-Sensitive 4 pi Compton Camera Based on a Single Segmented Scintillator | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Wonho | - |
dc.identifier.doi | 10.1109/TNS.2020.3037896 | - |
dc.identifier.scopusid | 2-s2.0-85096835710 | - |
dc.identifier.wosid | 000599494000007 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON NUCLEAR SCIENCE, v.67, no.12, pp.2511 - 2522 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON NUCLEAR SCIENCE | - |
dc.citation.title | IEEE TRANSACTIONS ON NUCLEAR SCIENCE | - |
dc.citation.volume | 67 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 2511 | - |
dc.citation.endPage | 2522 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Nuclear Science & Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Nuclear Science & Technology | - |
dc.subject.keywordPlus | RECONSTRUCTION | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordAuthor | Scintillators | - |
dc.subject.keywordAuthor | Cameras | - |
dc.subject.keywordAuthor | Detectors | - |
dc.subject.keywordAuthor | Image reconstruction | - |
dc.subject.keywordAuthor | Three-dimensional displays | - |
dc.subject.keywordAuthor | Scattering | - |
dc.subject.keywordAuthor | Absorption | - |
dc.subject.keywordAuthor | Nuclear facility regulation | - |
dc.subject.keywordAuthor | nuclear imaging | - |
dc.subject.keywordAuthor | radioactive pollution | - |
dc.subject.keywordAuthor | solid scintillators | - |
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