Characterization of the NNVT capillary plate collimators
作者: F. CeraudoJ. GeY. EvangelistaF. MuleriM. HanqiX. ZhaoX. WeiM. Feroci
作者单位: 1INAF/IAPS, via del Fosso del Cavaliere, 100, Rome, Italy
2North Night Vision Technology Co. Ltd., 2, Kangping Street, Jiangning District, Nanjing, Jiangsu Province, China
刊名: Journal of Instrumentation, 2018, Vol.13 (9)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1748-0221/13/09/P09020
原始语种摘要: In this paper, we report the results of the characterization campaign of two prototypes of Micro-Channel Plates (MCPs), designed as the X-ray collimators for the Large Area Detector on board the eXTP mission. The devices were developed ad-hoc by North Night Vision Technology Co., Ltd. (Nanjing, China). Measurements involved the study of the angular response ( rocking curve ) of each device to X-rays of different energies. The study evidenced how the angular response of a collimator changes with the energy of the incoming photons, with the onset of side lobes at high energy, which enlarge the effective field of view of the device, causing a potential contamination of the on-axis signal. Nevertheless, the magnitude of this effect is proven to be acceptable in most situations of...
全文获取路径: IOP 

  • device 装置
  • mission 任务
  • board 
  • contamination 混合
  • angular 有角的
  • incoming 引入的
  • study 学习
  • energy 能量
  • rocking 摆动的
  • different 不相同的