DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Myung Soo | ko |
dc.contributor.author | Lim, Kyung Taek | ko |
dc.contributor.author | Kim, Giyoon | ko |
dc.contributor.author | Cho, Gyuseong | ko |
dc.date.accessioned | 2018-01-30T05:48:24Z | - |
dc.date.available | 2018-01-30T05:48:24Z | - |
dc.date.created | 2017-12-20 | - |
dc.date.created | 2017-12-20 | - |
dc.date.created | 2017-12-20 | - |
dc.date.issued | 2018-02 | - |
dc.identifier.citation | NUCLEAR INSTRUMENTS METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.882, pp.84 - 90 | - |
dc.identifier.issn | 0168-9002 | - |
dc.identifier.uri | http://hdl.handle.net/10203/239447 | - |
dc.description.abstract | An X-ray transmission imaging based on scintillation detection method is the most widely used radiation technique particularly in the medical and industrial areas. As the name suggests, scintillation detection uses a scintillator as an intermediate material to convert incoming radiation into visible-light particles. Among different types of scintillators, CsI(Tl) in a columnar configuration is the most popular type used for applications that require an energy less than 150 keV due to its capability in obtaining a high spatial resolution with a reduced light spreading effect. In this study, different methods in combining a scintillator with a light-receiving unit are investigated and their relationships are given in terms of the image quality. Three different methods of combining a scintillator with a light-receiving unit are selected to investigate their performance in X-ray imaging: upward or downward oriented needles structure of CsI(Tl), coating layer deposition around CsI(Tl), and insertion of FOP. A charge-coupled device was chosen to serve as the light-receiving unit for the proposed system. From the result, the difference of needle directions in CsI(Tl) had no significant effects in the X-ray image. In contrast, deposition of the coating material around CsI(Tl) showed 17.3% reduction in the DQE. Insertion of the FOP increased the spatial resolution by 38%, however, it decreased the light yield in the acquired image by 56%. In order to have the maximum scintillation performance in X-ray imaging, not only the reflection material but also the bonding method must be considered when combining the scintillator with the light-receiving unit. In addition, the use of FOP should be carefully decided based on the purpose of X-ray imaging, e.g., image sharpness or SNR. | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.title | A comparative study of scintillator combining methods for flat-panel X-ray image sensors | - |
dc.type | Article | - |
dc.identifier.wosid | 000418526200010 | - |
dc.identifier.scopusid | 2-s2.0-85034785001 | - |
dc.type.rims | ART | - |
dc.citation.volume | 882 | - |
dc.citation.beginningpage | 84 | - |
dc.citation.endingpage | 90 | - |
dc.citation.publicationname | NUCLEAR INSTRUMENTS METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | - |
dc.identifier.doi | 10.1016/j.nima.2017.11.023 | - |
dc.contributor.localauthor | Cho, Gyuseong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | X-ray imaging | - |
dc.subject.keywordAuthor | Combining scintillator | - |
dc.subject.keywordAuthor | FOP | - |
dc.subject.keywordAuthor | MTF | - |
dc.subject.keywordAuthor | DQE | - |
dc.subject.keywordAuthor | Light yield | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PHOTOCONDUCTORS | - |
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