DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cha, Bo Kyung | ko |
dc.contributor.author | Kim, Jong Yul | ko |
dc.contributor.author | Cho, Gyuseong | ko |
dc.contributor.author | Seo, Chang-Woo | ko |
dc.contributor.author | Jeon, Sungchae | ko |
dc.contributor.author | Huh, Young | ko |
dc.date.accessioned | 2013-03-12T09:12:08Z | - |
dc.date.available | 2013-03-12T09:12:08Z | - |
dc.date.created | 2012-08-14 | - |
dc.date.created | 2012-08-14 | - |
dc.date.issued | 2011-08 | - |
dc.identifier.citation | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.648, pp.S12 - S15 | - |
dc.identifier.issn | 0168-9002 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101862 | - |
dc.description.abstract | A novel quasi-pixel structured scintillation screen with nanocrystalline Gd2O3:Eu particle sizes was introduced for indirect X-ray imaging sensors with high sensitivity and high spatial, resolution. A nanocrystalline Gd2O3:Eu scintillating phosphor with average 100 nm sizes was used as a conversion material for incident X-rays into optical photons. In this work, silicon-based pixel structures with different 100 and 50 mu m pixel sizes, 10 mu m wall width and 120 mu m thickness were fabricated by a standard photolithography and deep reactive ion etching (DRIE) process. The pixelated scintillation screen was fabricated by filling the synthesized nanocrystalline Gd2O3:Eu scintillating phosphor into pixel-structured silicon arrays, and X-ray imaging performance such as relative light intensity. X-ray to light response and spatial resolution in terms of modulation transfer function (MTF) of the fabricated samples were measured. Although high spatial resolution imaging was largely achieved by pixel-structured nanocrystalline Gd2O3:Eu scintillation screens, X-ray sensitivity was still low for medical imaging applications. As a result, novel quasi-pixel structured screens with additional thin Gd2O2S:Tb scintillating layer were proposed for X-ray imaging detector with suitable sensitivity and spatial resolution in comparison with pixel-structured screens, and X-ray imaging performance of quasi-pixel structured nanocrystalline Gd2O3:Eu scintillating screens was investigated. (c) 2011 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | DETECTORS | - |
dc.subject | PHOSPHORS | - |
dc.subject | ARRAYS | - |
dc.title | Quasi-pixel structured nanocrystalline Gd2O3(Eu) scintillation screens and imaging performance for indirect X-ray imaging sensors | - |
dc.type | Article | - |
dc.identifier.wosid | 000305376900004 | - |
dc.identifier.scopusid | 2-s2.0-79960846939 | - |
dc.type.rims | ART | - |
dc.citation.volume | 648 | - |
dc.citation.beginningpage | S12 | - |
dc.citation.endingpage | S15 | - |
dc.citation.publicationname | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | - |
dc.identifier.doi | 10.1016/j.nima.2011.02.016 | - |
dc.contributor.localauthor | Cho, Gyuseong | - |
dc.contributor.nonIdAuthor | Cha, Bo Kyung | - |
dc.contributor.nonIdAuthor | Seo, Chang-Woo | - |
dc.contributor.nonIdAuthor | Jeon, Sungchae | - |
dc.contributor.nonIdAuthor | Huh, Young | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Pixelated scintilllator | - |
dc.subject.keywordAuthor | Nanocrystalline Gd2O3:Eu scintillator | - |
dc.subject.keywordAuthor | Spatial resolution | - |
dc.subject.keywordAuthor | X-ray imaging detector | - |
dc.subject.keywordPlus | DETECTORS | - |
dc.subject.keywordPlus | PHOSPHORS | - |
dc.subject.keywordPlus | ARRAYS | - |
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