2001 Fiscal Year Final Research Report Summary
Development of integrated high-energy radiation imaging detector
| Project/Area Number |
12555101
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
電子デバイス・機器工学
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| Research Institution | Shizuoka University |
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Principal Investigator |
HATANAKA Yoshinori Research Institute of Electronics, Shizuoka University Professor, 電子工学研究所, 教授 (60006278)
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| Co-Investigator(Kenkyū-buntansha) |
YAMASHITA Takashi Central Research Center, Hamamatsu Photonics K.K., Head of an office (Researcher), 中央研究所, 室長(研究職)
AOKI Toru Research Institute of Electronics, Shizuoka University Research Associate, 電子工学研究所, 助手 (10283350)
NAKANISHI Yoichiro Research Institute of Electronics, Shizuoka University Professor, 電子工学研究所, 教授 (00022137)
YAMADA Yoshikazu R&D research group, Tousei electron beam, General manager (Researcher), 部長(研究職)
TOMITA Yasuhiro Electron tube division, Hamamatsu Photonics K.K., Reseacher, 電子管事業部, 研究員
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| Project Period (FY) |
2000 – 2001
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| Keywords | Solid State X-ray Imaging Sensor / High energy radiation / Imaging Device / CdTe diode / Laser Doping / MOCVD / High energy resolution / Room temperature operation |
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| Research Abstract |
High energy radiation detectors have been developed with high energy resolution, FWHM, of below 20/0 of radiation energy. For device fabrications, Low temperature processing techniques were developed ; one is a remote plasma enhanced (RPE) MOCVD and the other is a laser processing techniques. Using RPE-MOCVD, heavy doped n-type CdTe epitaxial layers (1018/cm3) with iodine doping were resulted on the intrinsic CdTe single crystal and M-i-n structure detectors were fabricated with high resolution as above. As the laser processing techniques, excimer laser doping techniques were developed using In for n-type heavy doping and Sb for p-type heavy doping. As the other laser processing technology, multi-pixcel detector fabrication technologies were developed using laser ablation phenomena by excimer laser radiation. The multi-pixcel detector showed a good performance for arrayed pin CdTe diodes. These techniques are promising for the fabrication technology of the multi-pixcel detector with the high special resolution and high energy resolution.
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