Cited 0 times in
A-Se 기반 디지털 X-선 영상장치의 Contrast-detail 특성 평가
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 박소현 | - |
dc.date.accessioned | 2014-12-21T16:58:01Z | - |
dc.date.available | 2014-12-21T16:58:01Z | - |
dc.date.issued | 2007 | - |
dc.identifier.issn | 1976-0620 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/96689 | - |
dc.description.abstract | In 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.statementOfResponsibility | open | - |
dc.format.extent | 11~16 | - |
dc.relation.isPartOf | Journal of the Korean Society of Radiology (한국방사선학회 논문지) | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | A-Se 기반 디지털 X-선 영상장치의 Contrast-detail 특성 평가 | - |
dc.title.alternative | Evaluation of Contrast-detail Characteristics of an A-Se Based Digital X-ray Imaging System | - |
dc.type | Article | - |
dc.contributor.college | College of Nursing (간호대학) | - |
dc.contributor.department | Dept. of Family Health Care (간호환경시스템학과) | - |
dc.contributor.googleauthor | 현혜경 | - |
dc.contributor.googleauthor | 박소현 | - |
dc.contributor.googleauthor | 조효성 | - |
dc.contributor.googleauthor | 조희문 | - |
dc.contributor.googleauthor | 김근영 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A01529 | - |
dc.relation.journalcode | J01889 | - |
dc.subject.keyword | A-Se | - |
dc.subject.keyword | Digital X-ray | - |
dc.subject.keyword | Contrast-detail | - |
dc.contributor.alternativeName | Park, So Hyun | - |
dc.contributor.affiliatedAuthor | Park, So Hyun | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 1 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 11 | - |
dc.citation.endPage | 16 | - |
dc.identifier.bibliographicCitation | Journal of the Korean Society of Radiology (한국방사선학회 논문지), Vol.1(1) : 11-16, 2007 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.