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CCD Readout for the IXO Off-Plane Grating Spectrometer

机译:IXO平面光栅光谱仪的CCD读数

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The International X-ray Observatory (IXO) project is the result of a merger between the NASA Con-X and ESA/Jaxa XEUS mission concepts. The IXO mission outline has an X-ray grating spectrometer operating in the 0.3-1 keV band. CCDs are the ideal detector for the readout of the grating spectrometer instrument and have been flown in similar functions on XMM and Chandra. Here we review the Off-Plane X-ray Grating Spectrometer concept for DCO and discuss the optimization of CCD technology for detection in the 0.2-2 keV X-ray band. We will discuss improvements to the existing technology previously flown, and the use of new technology such as electron multiplying CCDs which can provide enhanced signal to noise at these soft X-ray energies, together with radiation hardening measures and methods of reducing sensitivity to optical stray light. We will also end by discussing alternative CMOS-based technology which may be developed in future years to replace the CCD technology, offering benefits of higher system integration and radiation hardness.
机译:国际X射线天文台(IXO)项目是NASA Con-X与ESA / Jaxa XEUS任务概念合并的结果。 IXO任务大纲中有一个在0.3-1 keV波段工作的X射线光栅光谱仪。 CCD是用于读出光栅光谱仪仪器的理想检测器,并且已经在XMM和Chandra上以类似功能飞行。在这里,我们回顾了用于DCO的平面X射线光栅光谱仪的概念,并讨论了在0.2-2 keV X射线波段检测CCD技术的优化。我们将讨论对先前飞行的现有技术的改进,以及新技术的使用,例如可以在这些软X射线能量下提供增强的信噪比的电子倍增CCD,以及辐射硬化措施和降低对杂散光敏感度的方法光。我们还将最后讨论替代的基于CMOS的技术,该技术可能会在未来几年中取代CCD技术而开发,从而带来更高的系统集成度和辐射硬度。

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