DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, D. | ko |
dc.contributor.author | Lim, Kyung Taek | ko |
dc.contributor.author | Park, K. | ko |
dc.contributor.author | Lee, C. | ko |
dc.contributor.author | Alexander, S. | ko |
dc.contributor.author | Cho, Gyuseong | ko |
dc.date.accessioned | 2017-09-08T05:23:08Z | - |
dc.date.available | 2017-09-08T05:23:08Z | - |
dc.date.created | 2017-08-28 | - |
dc.date.created | 2017-08-28 | - |
dc.date.created | 2017-08-28 | - |
dc.date.issued | 2017-03 | - |
dc.identifier.citation | JOURNAL OF INSTRUMENTATION, v.12 | - |
dc.identifier.issn | 1748-0221 | - |
dc.identifier.uri | http://hdl.handle.net/10203/225678 | - |
dc.description.abstract | In this study, an innovative fast X-ray photon-counting pixel for high X-ray flux applications is proposed. A computed tomography system typically uses X-ray fluxes up to 10(8) photons/mm(2)/sec at the detector and thus a fast read-out is required in order to process individual X-ray photons. Otherwise, pulse pile-up can occur at the output of the signal processing unit. These superimposed signals can distort the number of incident X-ray photons leading to count loss. To minimize such losses, a cross detection method was implemented in the photon-counting pixel. A maximum count rate under X-ray tube voltage of 90 kV was acquired which reflect electrical test results of the proposed photon counting pixel. A maximum count of 780 kcps was achieved with a conventional photon-counting pixel at the pulse processing time of 500 ns, which is the time for a pulse to return to the baseline from the initial rise. In contrast, the maximum count of about 8.1 Mcps was achieved with the proposed photon-counting pixel. From these results, it was clear that the maximum count rate was increased by approximately a factor 10 times by adopting the cross detection method. Therefore, it is an innovative method to reduce count loss from pulse pile-up in a photon-counting pixel while maintaining the pulse processing time. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | An innovative method to reduce count loss from pulse pile-up in a photon-counting pixel for high flux X-ray applications | - |
dc.type | Article | - |
dc.identifier.wosid | 000406997600006 | - |
dc.identifier.scopusid | 2-s2.0-85017461661 | - |
dc.type.rims | ART | - |
dc.citation.volume | 12 | - |
dc.citation.publicationname | JOURNAL OF INSTRUMENTATION | - |
dc.identifier.doi | 10.1088/1748-0221/12/03/P03006 | - |
dc.contributor.localauthor | Cho, Gyuseong | - |
dc.contributor.nonIdAuthor | Lee, D. | - |
dc.contributor.nonIdAuthor | Park, K. | - |
dc.contributor.nonIdAuthor | Lee, C. | - |
dc.contributor.nonIdAuthor | Alexander, S. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Electronic detector readout concepts (solid-state) | - |
dc.subject.keywordAuthor | Data processing methods | - |
dc.subject.keywordAuthor | Detector design and construction technologies and materials | - |
dc.subject.keywordAuthor | Solid state detectors | - |
dc.subject.keywordPlus | DETECTORS | - |
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