報(bào)告題目：3-Dimensional Position-Sensitive CdZnTe Gamma-Ray Imaging Spectrometers
報(bào)告人：何中 教授（Zhong He, The University of Michigan）
主持人：張雙南 研究員
時(shí)間：6月18日（周二）上午10:00
地點(diǎn)：主樓C305會(huì)議室
報(bào)告簡(jiǎn)介：
This presentation introduces 3-dimensional position-sensitive room-temperature CdZnTe semiconductor gamma-ray imaging spectrometers pioneered by the University of Michigan. These detectors provide energy depositions and 3-dimensional positions of individual gamma interactions within each semiconductor crystal. The combined capabilities of high-resolution gamma-ray spectroscopy, real-time imaging, and room-temperature operation have attracted long and sustained support over the past two decades. The detector technology has been transformed from basic research to commercial markets in recent years. Applications include space exploration and medical imaging, such as range verification for proton cancer therapy.
Some latest technology development will be introduced, including new capabilities on thermal and fission neutron detection, high resolution gamma-ray imaging using time-encoded coded aperture technique, detecting and characterizing special nuclear materials behind shielding materials, and locate sources hundreds of meters away from one single observation.
報(bào)告人簡(jiǎn)介：
何中，1981年考入清華大學(xué)工程物理系近代物理專業(yè)，次年轉(zhuǎn)入既時(shí)新組建的現(xiàn)代應(yīng)用物理系。1986年獲學(xué)士學(xué)位。之后去中國(guó)科學(xué)院高能物理研究所天體物理室。1988年末完成碩士學(xué)位并留任高能所。1989年10月至1991年春在英國(guó)南安普頓大學(xué)及法國(guó)巴黎Saclay核研究所訪問工作。1991年夏開始在英國(guó)南安普頓大學(xué)物理系攻讀博士學(xué)位。1993年底完成博士論文“gamma射線成像”。
1994年起就職于美國(guó)密西根大學(xué)（The University of Michigan）核工程系。2004年獲密西根大學(xué)終身教授?？蒲蟹较蛑饕杏诎雽?dǎo)體gamma和中子成像探測(cè)器，應(yīng)用領(lǐng)域包括醫(yī)療成像、工業(yè)應(yīng)用、暗物質(zhì)探測(cè)、天體物理、行星探測(cè)等。累計(jì)在國(guó)際期刊發(fā)表100多篇文章，直接累計(jì)主管科研超三千萬(wàn)美元。其中與美國(guó)太平洋西北國(guó)家實(shí)驗(yàn)室合作研發(fā)項(xiàng)目“三維CdZnTe gamma成像探測(cè)器”獲美國(guó)2010年“TOP 100 R&D” 獎(jiǎng)。直接畢業(yè)28個(gè)博士研究生。2011年和博士畢業(yè)生共創(chuàng)H3D Inc. 開發(fā)商業(yè)應(yīng)用三維位置靈敏CdZnTe Gamma 射線高能量分辨率相機(jī)。
科研網(wǎng)頁(yè)：http://cztlab.engin.umich.edu/
Zhong He received his Ph.D from Southampton University in U.K. in 1993. His research has covered all three major types of radiation sensors, semiconductor, scintillators, gas detectors, and associated low noise, charge sensing Application Specific Integrated Circuitries (ASICs). Since 1995, his research has focused mostly on the development of room-temperature semiconductor gamma-ray imaging spectrometers. He pioneered the 3-dimensional position-sensitive single-polarity charge sensing technology which has received increasing interests in medical imaging, and planetary sciences. He has graduated 28 Ph.Ds as committee chair and has published about 100 peer reviewed journal publications. H3D Inc., a spin-off company from his research group, has sold CdZnTe gamma-ray imagers to more than 60% of nuclear power plants in the United States and Canada, as well as in countries in Europe and Asia, to IAEA Safeguard Department and research groups on proton cancer therapy.
More detailed information on Zhong He’s research and teaching activity can be seen at their group website: http://cztlab.engin.umich.edu.
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