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Examination of HgI/sub 2/ and PbI/sub 2/ photoconductive materials for direct detection, active matrix, flat-panel imagers for diagnostic X-ray imaging

机译：检验用于直接检测的HgI / sub 2 /和PbI / sub 2 /光电导材料，用于诊断X射线成像的有源矩阵，平板成像仪

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In this paper, the results of initial empirical studies of the dark current and X-ray signal response of thick, polycrystalline films of lead iodide (PbI/sub 2/) and mercuric iodide (HgI/sub 2/) are reported. These studies are being carried out as part of an extensive, integrated program of research to develop and incorporate such photoconductive, X-ray detection materials into direct detection, active matrix flat-panel imagers (AMFPIs) for applications in diagnostic imaging, as well as for radiotherapy imaging. Simple detector configurations incorporating these materials were prepared by physical vapor deposition (PVD) with thicknesses ranging from approximately 90 to 500 urn. In the present study, dark current, X-ray sensitivity and temporal response of the detectors were quantitatively evaluated under irradiation conditions relevant to radiography, fluoroscopy and mammography. Measurements were performed for externally applied bias voltages ranging from 0.1 to 2.0V//spl mu/m for both negative and positive polarities.

机译：本文报道了厚的多晶碘化铅（PbI / sub 2 /）和碘化汞（HgI / sub 2 /）的暗电流和X射线信号响应的初步经验研究结果。这些研究是一项广泛而完整的研究计划的一部分，该研究计划旨在将此类光电导X射线检测材料开发并整合到直接检测，有源矩阵平板成像仪（AMFPI）中，以用于诊断成像以及用于放射治疗成像。通过物理气相沉积（PVD）制备厚度约为90至500微米的简单探测器结构，并结合了这些材料。在本研究中，在与放射线照相，荧光检查和乳房X线照相有关的照射条件下，定量评估了探测器的暗电流，X射线敏感性和时间响应。对负极性和正极性均从0.1到2.0V // splμm/ m的外部施加的偏置电压进行了测量。

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《》|2004年|p.2119-2123|共5页
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Kang; Y.; Antonuk; L.E.; El-Mohri; Y.; Hu; L.; Li; Y.; Sawant; A.; Su; Z.; Wang; Y.; Yamamoto; J.; Zhao; Q.;
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中图分类无线电电子学、电信技术;
关键词
diagnostic radiography; semiconductor counters; X-ray detection; lead compounds; mercury compounds; radiation therapy; mammography; thick films; photoconducting materials; dark conductivity; photodetectors; photoconductive materials; direct detection active matrix flat-panel imagers; diagnostic X-ray imaging; dark current; X-ray signal response; thick polycrystalline films; photoconductive X-ray detection materials; radiotherapy imaging; physical vapor deposition; X-ray sensitivity; radiography; fluoroscopy; mammography;

机译：诊断放射线照相;半导体计数器; X射线检测;铅化合物;汞化合物;放射治疗;乳腺X线摄影;厚膜;光电导材料;暗电导率;光电探测器;光电导材料;直接检测有源矩阵平板成像仪;诊断X射线成像;暗电流; X射线信号响应;厚的多晶硅膜;光电导X射线检测材料;放射治疗成像;物理气相沉积; X射线敏感性;射线照相;荧光检查;乳房X线照相;

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专利

1. Examination of PbI/sub 2/ and HgI/sub 2/ photoconductive materials for direct detection, active matrix, flat-panel imagers for diagnostic X-ray imaging [J] . Yixiu Kang, Antonuk L.E., El-Mohri Y., IEEE Transactions on Nuclear Science . 2005,第1期

机译：检验用于直接检测的PbI / sub 2 /和HgI / sub 2 /光电导材料，用于诊断X射线成像的有源矩阵，平板成像仪
2. Investigation of the signal behavior at diagnostic energies of prototype, direct detection, active matrix, flat-panel imagers incorporating polycrystalline HgI2 [J] . Du H, Antonuk LE, El-Mohri Y, Physics in medicine and biology. . 2008,第5期

机译：结合多晶HgI2的原型，直接检测，有源矩阵，平板成像仪的诊断能量下的信号行为研究
3. Strategies to improve the signal and noise performance of active matrix, flat-panel imagers for diagnostic x-ray applications. [J] . Antonuk LE, Jee KW, El Mohri-Y, Medical Physics . 2000,第2期

机译：改善用于诊断X射线应用的有源矩阵平板成像器的信号和噪声性能的策略。
4. Examination of HgI{sub}2 and PbI{sub}2 Photoconductive Materials for Direct Detection, Active Matrix, Flat-Panel Imagers for Diagnostic X-ray Imaging [C] . Y. Kang, L. E. Antonuk, Y. El-Mohri, IEEE Nuclear Science Symposium . 2003

机译：检查HGI {Sub} 2和PBI {Sub} 2光电导材料用于直接检测，有源矩阵，平板图像，用于诊断X射线成像
5. Lag measurement in an a-selenium active matrix flat-panel imager. [D] . Schroeder, Charles Edward. 2004

机译：a硒有源矩阵平板成像仪中的延迟测量。
6. Investigation of the signal behavior at diagnostic energies of prototype direct detection active matrix flat-panel imagers incorporating polycrystalline HgI2 [O] . Hong Du, Larry E. Antonuk, Youcef El-Mohri, -1

机译：研究原型直接检测有源矩阵结合多晶HgI2的平板成像仪在诊断能量下的信号行为
7. Signal behavior of polycrystalline HgI2at diagnostic energies of prototype, direct detection, active matrix, flat-panel imagers [O] . Hong Du, Larry E Antonuk, Youcef El-Mohri, 2008

机译：多晶HGI2AT原型，直接检测，有源矩阵，平板图像诊断能量的信号行为

Examination of HgI/sub 2/ and PbI/sub 2/ photoconductive materials for direct detection, active matrix, flat-panel imagers for diagnostic X-ray imaging

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