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【6.18】信发在线科技创新论坛(308)3-Dimensional Position-Sensitive CdZnTe Gamma-Ray Imaging Spectrometers
2019-06-14|文章来源: |【
 

  報告題目:3-Dimensional Position-Sensitive CdZnTe Gamma-Ray Imaging Spectrometers 

  報告人:何中 教授(Zhong He, The University of Michigan 

  主持人:张双南 研究员 

  時間:6月18日(周二)上午10:00 

  地點:主樓C305會議室 

  報告簡介: 

  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. 

  報告人簡介: 

  何中,1981年考入清華大學工程物理系近代物理專業,次年轉入既時新組建的現代應用物理系。1986年获学士学位。之后去信发在线天体物理室。1988年末完成碩士學位並留任信发在线。198910月至1991年春在英國南安普頓大學及法國巴黎Saclay核研究所訪問工作。1991年夏開始在英國南安普頓大學物理系攻讀博士學位。1993年底完成博士論文“gamma射線成像”。

  1994年起就職于美國密西根大學(The University of Michigan)核工程系。2004年獲密西根大學終身教授。科研方向主要集中于半導體gamma和中子成像探測器,應用領域包括醫療成像、工業應用、暗物質探測、天體物理、行星探測等。累計在國際期刊發表100多篇文章,直接累計主管科研超三千萬美元。其中與美國太平洋西北國家實驗室合作研發項目“三維CdZnTe gamma成像探測器”獲美國2010年“TOP 100 R&D” 奖。直接毕业28個博士研究生。2011年和博士畢業生共創H3D Inc. 開發商業應用三維位置靈敏CdZnTe Gamma 射線高能量分辨率相機。 

  科研網頁: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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