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MOS CCDs for the European Photon Imaging Camera

机译:MOS CCD为欧洲光子成像相机

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The X-ray Astronomy group at the University of Leicester is responsible for the development of two out of three of the focal plane cameras for the EPIC instrument on ESA's cornerstone mission XMM. CCDs are being developed in collaboration with EEV Ltd. of Chelmsford, UK, to perform the imaging spectroscopy at the prime focus of the telescope. The detectors require Fano- limited energy resolution and high detection efficiency over the 0.1 - 15 keV band. Devices are being constructed using high resistivity bulk silicon ($GRT 8000 approximately ega@cm) producing deep depletion, with an efficiency at the iron line (6.4 keV) of 85%. The low energy ($LS 1 keV) X-ray performance is being maximized in the front-illumination devices by using novel `open electrode' structures resulting in an efficiency of 23% at carbon-k (277 eV). The test results of devices manufactured are presented for a range of X-ray lines and the data are compared to modelled results based on the device parameters.
机译:莱斯特大学的X射线天文集团负责在ESA的基石使命XMM上开发两个焦平面相机中的三个焦平面摄像机。 CCD正在与英国Chelmsford EEV Ltd.合作开发,在望远镜的主要重点进行成像光谱。探测器需要有限的能量分辨率和0.1-15keV频段的高检测效率。使用高电阻率散装硅(大约EGA @ CM)构造了设备,其产生深耗尽,铁线(6.4keV)的效率为85%。通过使用新的“开放电极”结构在前照明装置中,低能量($ LS 1 KEV)X射线性能在碳-K(277eV)下产生23%的效率。制造的器件的测试结果呈现出一系列X射线线,并将数据与基于器件参数的建模结果进行比较。

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