论文标题
XPOL-III：新一代VLSI CMOS ASIC用于高通量X射线极化法
XPOL-III: a New-Generation VLSI CMOS ASIC for High-Throughput X-ray Polarimetry
论文作者
论文摘要
虽然在极光立方体上的气体像素探测器的成功发射和操作以及成像X射线极化探险仪展示了这类探测器的可行性和技术声音，用于天文学X射线极性计的探测器，但很明显，艺术的现状无法满足下一代的挑战，例如允许X型X型X型X射线，例如，X射线范围允许X型的挑战，例如增强的X-Ray X-Ray X-Ray X-Ray X-Ray X-Ray X-Ray X roos and x-ray x-ray tene and x-ray x-ray tens and x-ray tens and x-ray tens to显着更大的数据吞吐量。 在本文中，我们描述了一种新的自定义，自我触发读数ASIC的设计和测试，该读数为Xpol-III，特别想解决和克服这些局限性。在建立前几代人的整体体系结构的同时，新的芯片在几个不同的关键领域（触发电子设备的灵敏度，读取窗口的定义的灵活性）以及串行事件读数的最大速度的灵活性都改善了其前身。这些设计改进结合在一起时，每个事件的消亡时间几乎较小，而探测器的极化，光谱，成像或正时能力的可测量降解为下一代X射线任务提供了很好的匹配。
While the successful launch and operation in space of the Gas Pixel Detectors onboard the PolarLight cubesat and the Imaging X-ray Polarimetry Explorer demonstrate the viability and the technical soundness of this class of detectors for astronomical X-ray polarimetry, it is clear that the current state of the art is not ready to meet the challenges of the next generation of experiments, such as the enhanced X-ray Timing and Polarimetry mission, designed to allow for a significantly larger data throughput. In this paper we describe the design and test of a new custom, self-triggering readout ASIC, dubbed XPOL-III, specifically conceived to address and overcome these limitations. While building upon the overall architecture of the previous generations, the new chip improves over its predecessors in several, different key areas: the sensitivity of the trigger electronics, the flexibility in the definition of the readout window, as well as the maximum speed for the serial event readout. These design improvements, when combined, allow for almost an order of magnitude smaller dead time per event with no measurable degradation of the polarimetric, spectral, imaging or timing capability of the detector, providing a good match for the next generation of X-ray missions.
