首页> 外文会议>Conference on X-Ray and Gamma-Ray Instrumentation for Astronomy XI 2-4 August 2000 San Diego, USA >The effect of low energy protons on the performance of the EPIC pn-CCD detector on XMM-Newton
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The effect of low energy protons on the performance of the EPIC pn-CCD detector on XMM-Newton

机译:低能质子对XMM-Newton上EPIC pn-CCD检测器性能的影响

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After the launch of Chandra, it was realised that low energy protons (below approximately 300 keV) are funnelled by grazing incident mirrors onto the focal plane detectors. front illuminated CCD detectors are very sensitive to soft protons causing radiation damage in their electrode structures and transfer channels. The back illuminated 280 mum thick fully depleted pn-CCD of the European Photon Imaging Camera (EPIC) on board the X-ray Multi Mirror mission (XMM) is by far less sensitive to lwo energy proton radiaiton. Commanding the camera in a special low gain mode, even allows to directly measure proton spectra and event patterns up to 300 keV per pixel.
机译:钱德拉发射升空后,人们意识到低能质子(低于约300 keV)是通过将入射镜掠入焦平面探测器上而漏斗的。前照式CCD检测器对软质子非常敏感,从而在其电极结构和传输通道中造成辐射损伤。 X射线多镜任务(XMM)上的欧洲光子成像相机(EPIC)的背照式280微米厚的全耗尽pn-CCD对低能质子辐射不敏感。在特殊的低增益模式下命令相机,甚至可以直接测量每个像素高达300 keV的质子谱和事件模式。

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