报告题目：X-IFU, the high resolution X-ray imaging spectrometer of the Athena mission

报告人：Fran?ois PAJOT（Directeur de Recherche au CNRS）　　

　　报告摘要: The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution X-ray spectroscopy from 0.2 to 12 keV, with 5 arcsec pixels over a field of view of 5 arc minute equivalent diameter and a spectral resolution of 2.5 eV up to 7 keV. I will first review the core scientic objectives of Athena, driving the main performance parameters of the X-IFU, namely the spectral resolution, the field of view, the effective area, the count rate capabilities, and the instrumental background. Then I will present the X-IFU design, based on an array of 3840 TES micro-calorimeters operated at 50 mK, and the path followed to optimize the instrument. Finally, I will report on its predicted performance. The X-IFU will be provided by an international consortium led by France, The Netherlands and Italy, with further ESA member state contributions from Belgium, Finland, Germany, Poland, Spain, Switzerland and two international partners from the United States and Japan.

　　报告时间：2017年7月14日（周五） 14:30

　　报告地点：紫台大楼619会议室
欢迎大家参加！
　紫金山天文台学术委员会