Systematic investigation of the signal properties of polycrystalline HgI2 detectors under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions

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dc.contributor.author Su, Zhong en_US
dc.contributor.author Antonuk, Larry E. en_US
dc.contributor.author El-Mohri, Youcef en_US
dc.contributor.author Hu, Larry en_US
dc.contributor.author Du, Hong en_US
dc.contributor.author Sawant, Amit en_US
dc.contributor.author Li, Yixin en_US
dc.contributor.author Wang, Yi en_US
dc.contributor.author Yamamoto, Jin en_US
dc.contributor.author Zhao, Qihua en_US
dc.date.accessioned 2006-12-19T19:04:28Z
dc.date.available 2006-12-19T19:04:28Z
dc.date.issued 2005-06-21 en_US
dc.identifier.citation Su, Zhong; Antonuk, Larry E; El-Mohri, Youcef; Hu, Larry; Du, Hong; Sawant, Amit; Li, Yixin; Wang, Yi; Yamamoto, Jin; Zhao, Qihua (2005). "Systematic investigation of the signal properties of polycrystalline HgI2 detectors under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions." Physics in Medicine and Biology. 50(12): 2907-2928. <http://hdl.handle.net/2027.42/48980> en_US
dc.identifier.issn 0031-9155 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/48980
dc.identifier.uri http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=15930610&dopt=citation en_US
dc.description.abstract The signal properties of polycrystalline mercuric iodide (HgI2) film detectors, under irradiation conditions relevant to mammographic, radiographic, fluoroscopic and radiotherapy x-ray imaging, are reported. Each film detector consists of an ∼230 to ∼460 µm thick layer of HgI2 (fabricated through physical vapour deposition or a screen-print process) and a thin barrier layer, sandwiched between a pair of opposing electrode plates. The high atomic number, high density and low effective ionization energy, WEFF, of HgI2 make it an attractive candidate for significantly improving the performance of active matrix, flat-panel imagers (AMFPIs) for several x-ray imaging applications. The temporal behaviour of current from the film detectors in the presence and in the absence of radiation was used to examine dark current levels, the lag and reciprocity of the signal response, x-ray sensitivity and WEFF. The results are discussed in the context of present AMFPI performance. This study provides performance data for a wide range of potential medical x-ray imaging applications from a single set of detectors and represents the first investigation of the signal properties of polycrystalline mercuric iodide for the radiotherapy application. en_US
dc.format.extent 3118 bytes
dc.format.extent 384187 bytes
dc.format.mimetype text/plain
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.publisher IOP Publishing Ltd en_US
dc.title Systematic investigation of the signal properties of polycrystalline HgI2 detectors under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions en_US
dc.type Article en_US
dc.subject.hlbsecondlevel Physics en_US
dc.subject.hlbtoplevel Science en_US
dc.description.peerreviewed Peer Reviewed en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationum Department of Radiation Oncology, University of Michigan, 519 W. William St., Argus Building 1, Ann Arbor, MI 48103-4943, USA en_US
dc.contributor.affiliationumcampus Ann Arbor en_US
dc.identifier.pmid 15930610 en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/48980/2/pmb5_12_012.pdf en_US
dc.identifier.doi http://dx.doi.org/10.1088/0031-9155/50/12/012 en_US
dc.identifier.source Physics in Medicine and Biology. en_US
dc.owningcollname Interdisciplinary and Peer-Reviewed
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