| 报告题目： |
The Compton Spectrometer and Imager (COSI) project |
| 报告人： |
Chang, Hsiang-Kuang 教授 |
| 报告人单位： |
台湾国立清华大学 天文学与物理系 |
| 报告时间： |
2017年6月27日 周二 上午10点 |
| 报告地点： |
东七楼 427会议室 |
| 报告人简介： |
|
| |
The Compton Spectrometer and Imager (COSI) project is an effort to develop the next generation Compton telescope of higher sensitivity. COSI is currently a balloon-borne telescope project. The heart of COSI is an array of 12 cross-strip germanium detectors, each with 15mm x 80mm x 80mm dimension and full 3D position resolution of less than 2 mm^3. COSI performs Compton spectroscopic imaging in the 0.2-10 MeV gamma-ray band with a field of view about 50 degrees across and capability of polarization measurement. It is also well suitable for monitoring transient events. Several COSI balloon flights have been conducted. The most recent flight was launched from Wanaka, New Zealand, in May 2016 with a super-pressure balloon flying for 47 days. During this flight, COSI discovered GRB160530A and detected several sources, including the 511-keV emission from the galactic center, the Crab, Cen A, and Cyg X-1. The COSI collaboration is now working for the next flight in spring 2019, to launch again from Wanaka, New Zealand, for a 100-day flight. I will report the current status of the COSI project. COSI is a join effort of several institutions in Taiwan, US and France. |
| 报告摘要： |
|
| |
1994-1996, Postdoctoral Research Associate, Los Alamos National Lab, USA
1996-1997, NSC Postdoctoral Fellow, Department of Physics, National Tsing Hua University
1997-present Assistant, Associate and Full Professor, Department of Physics and Institute of Astronomy, National Tsing Hua University |
