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A-Se 기반 디지털 X-선 영상장치의 Contrast-detail 특성 평가

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dc.contributor.author박소현-
dc.date.accessioned2014-12-21T16:58:01Z-
dc.date.available2014-12-21T16:58:01Z-
dc.date.issued2007-
dc.identifier.issn1976-0620-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/96689-
dc.description.abstractIn this study, we have performed contrast-detail analysis for an amorphous selenium(a-Se) based digital X-ray imaging system by using a contrast-detail phantom(CDRAD 2.0) to test its low contrast performance. The X-ray imaging system utilizes an 500-mm-thick a-Se semiconductor X-ray absorber coated over an amorphous silicon(a-Si) TFT(thin-film transistor) detector matrix with a $139mm{\times}139mm$ pixel size and a $46.7cm{\times}46.7cm$ active area. In the measurement of contrast-detail curves we first acquired X-ray images of the CDRAD 2.0 phantom at given test conditions(i.e., 40, 50, 60, 70, 80 kVp, and 16 mA.s), and then evaluated the contrast-detail characteristics of the imaging system from each phantom image by using an image quality factor called the image-quality-figure-inverse(IQFinv). The IQFinv values for the imaging system gradually improved with the photon fluence, indicating the improvement of image visibility: 24.4, 35.3, 39.2, 41.5, and 43.4 at photon fluences of $1.8{\times}105$, $5.9{\times}105$, $11.3{\times}105$, $19.4{\times}105$, and $29.4{\times}105$ photons/$mm^2$, respectively.-
dc.description.statementOfResponsibilityopen-
dc.format.extent11~16-
dc.relation.isPartOfJournal of the Korean Society of Radiology (한국방사선학회 논문지)-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.titleA-Se 기반 디지털 X-선 영상장치의 Contrast-detail 특성 평가-
dc.title.alternativeEvaluation of Contrast-detail Characteristics of an A-Se Based Digital X-ray Imaging System-
dc.typeArticle-
dc.contributor.collegeCollege of Nursing (간호대학)-
dc.contributor.departmentDept. of Family Health Care (간호환경시스템학과)-
dc.contributor.googleauthor현혜경-
dc.contributor.googleauthor박소현-
dc.contributor.googleauthor조효성-
dc.contributor.googleauthor조희문-
dc.contributor.googleauthor김근영-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA01529-
dc.relation.journalcodeJ01889-
dc.subject.keywordA-Se-
dc.subject.keywordDigital X-ray-
dc.subject.keywordContrast-detail-
dc.contributor.alternativeNamePark, So Hyun-
dc.contributor.affiliatedAuthorPark, So Hyun-
dc.rights.accessRightsfree-
dc.citation.volume1-
dc.citation.number1-
dc.citation.startPage11-
dc.citation.endPage16-
dc.identifier.bibliographicCitationJournal of the Korean Society of Radiology (한국방사선학회 논문지), Vol.1(1) : 11-16, 2007-
Appears in Collections:
3. College of Nursing (간호대학) > Dept. of Nursing (간호학과) > 1. Journal Papers

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