DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cha, B. K. | ko |
dc.contributor.author | Kim, J. Y. | ko |
dc.contributor.author | Kim, Y. J. | ko |
dc.contributor.author | Yun, S. | ko |
dc.contributor.author | Cho, G. | ko |
dc.contributor.author | Kim, H. K. | ko |
dc.contributor.author | Seo, C. -W. | ko |
dc.contributor.author | Jeon, S. | ko |
dc.contributor.author | Huh, Y. | ko |
dc.date.accessioned | 2013-03-12T07:54:55Z | - |
dc.date.available | 2013-03-12T07:54:55Z | - |
dc.date.created | 2012-07-18 | - |
dc.date.created | 2012-07-18 | - |
dc.date.issued | 2012-04 | - |
dc.identifier.citation | JOURNAL OF INSTRUMENTATION, v.7 | - |
dc.identifier.issn | 1748-0221 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101708 | - |
dc.description.abstract | In digital X-ray imaging systems, X-ray imaging detectors based on scintillating screens with electronic devices such as charge-coupled devices (CCDs), thin-film transistors (TFT), complementary metal oxide semiconductor (CMOS) flat panel imagers have been introduced for general radiography, dental, mammography and non-destructive testing (NDT) applications. Recently, a large-area CMOS active-pixel sensor (APS) in combination with scintillation films has been widely used in a variety of digital X-ray imaging applications. We employed a scintillator-based CMOS APS image sensor for high-resolution mammography. In this work, both powder-type Gd2O2S:Tb and a columnar structured CsI:Tl scintillation screens with various thicknesses were fabricated and used as materials to convert X-ray into visible light. These scintillating screens were directly coupled to a CMOS flat panel imager with a 25 x 50 mm(2) active area and a 48 mu m pixel pitch for high spatial resolution acquisition. We used a W/Al mammographic X-ray source with a 30 kVp energy condition. The imaging characterization of the X-ray detector was measured and analyzed in terms of linearity in incident X-ray dose, modulation transfer function (MTF), noise-power spectrum (NPS) and detective quantum efficiency (DQE). | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | SENSORS | - |
dc.title | Design and image-quality performance of high resolution CMOS-based X-ray imaging detectors for digital mammography | - |
dc.type | Article | - |
dc.identifier.wosid | 000304012800020 | - |
dc.identifier.scopusid | 2-s2.0-84860511544 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.publicationname | JOURNAL OF INSTRUMENTATION | - |
dc.identifier.doi | 10.1088/1748-0221/7/04/C04020 | - |
dc.contributor.localauthor | Cho, G. | - |
dc.contributor.nonIdAuthor | Cha, B. K. | - |
dc.contributor.nonIdAuthor | Kim, Y. J. | - |
dc.contributor.nonIdAuthor | Yun, S. | - |
dc.contributor.nonIdAuthor | Kim, H. K. | - |
dc.contributor.nonIdAuthor | Seo, C. -W. | - |
dc.contributor.nonIdAuthor | Jeon, S. | - |
dc.contributor.nonIdAuthor | Huh, Y. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | X-ray detectors | - |
dc.subject.keywordAuthor | Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators) | - |
dc.subject.keywordAuthor | Scintillators and scintillating fibres and light guides | - |
dc.subject.keywordAuthor | X-ray radiography and digital radiography (DR) | - |
dc.subject.keywordPlus | SENSORS | - |
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