Development of on-chip pattern processing in event-driven SOI pixel detector for X-ray astronomy with background rejection purpose
Development of on-chip pattern processing in event-driven SOI pixel detector for X-ray astronomy with background rejection purpose
复制标题
用于具有背景抑制目的的 X 射线天文学事件驱动 SOI 像素探测器中片上图案处理的开发
DOI：
10.1088/1748-0221/15/12/p12025
复制
发表时间：
2020
影响因子：
1.3
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
Ayaki Takeda;Koji Mori;et al.
本文报道了具有背景抑制目的的事件驱动的x射线天文用绝缘体上硅像元探测器片上模式处理的进展。x射线电荷耦合器件（CCD）探测器是应用于该领域的成熟的像素探测器，它已经证明，根据探测到的事件的空间模式进行分类可以有效地抑制粒子背景。在现有器件的基础上，根据在太空中获得的CCD图像，我们首先建立了要实现的图案处理器的设计理念和算法。然后，我们开发了一个新的器件，包括一个原型模式处理电路。使用x射线和β射线放射性同位素的实验表明，模式处理器正常工作，并在芯片上实现了粒子背景抑制。这个功能非常有用，特别是在像CubeSat这样资源有限的系统中。
This paper reports on the development of on-chip pattern processing in the event-driven silicon-on-insulator pixel detector for X-ray astronomy with background rejection purpose. X-ray charge-coupled device (CCD) detectors, well-established pixel detectors used in this field, has proven that classification of detected events considering their spatial pattern is effective for particle background rejection. Based on the current architecture of our device and from the CCD images obtained in space, we first established a design concept and algorithm of the pattern processor to be implemented. Then, we developed a new device, including a prototype pattern-processing circuit. Experiments using X-ray and beta-ray radioisotopes demonstrated that the pattern processor properly works as expected, and the particle background rejection is realized in an on-chip fashion. This function is useful, especially in a limited-resource system such as the CubeSat.