用于读取ASTRI相机中SiPM的前端EASIROC的特性
Characterization of the front-end EASIROC for read-out of SiPM in the ASTRI camera
摘要：
切伦科夫望远镜阵列的小型望远镜原型的设计和实现是应科院项目的基石之一。该原型将采用基于硅光电倍增器传感器的焦平面相机，再加上双镜光学配置，代表了大气切伦科夫光检测的创新解决方案。这些探测器可以通过配备32通道的扩展Analog硅光电倍增器集成读出芯片（EASIROC）读取。在本文中，我们报告了一些初步的测量结果，旨在评估EASIROC能力的自动触发和测量的触发时间步行，抖动，DAC的线性度和触发效率与注入的电荷。此外，还报告了ASIC的动态范围。
英文摘要：
The design and realization of a prototype for the Small-Size class Telescopes of the Cherenkov Telescope Array is one of the cornerstones of the ASTRI project. The prototype will adopt a focal plane camera based on Silicon Photo-Multiplier sensors that coupled with a dual mirror optics configuration represents an innovative solution for the detection of Atmospheric Cherenkov light. These detectors can be read by the Extended Analogue Silicon Photo-Multiplier Integrated Read Out Chip (EASIROC) equipped with 32-channels. In this paper, we report some preliminary results on measurements aimed to evaluate EASIROC capability of autotriggering and measurements of the trigger time walk, jitter, DAC linearity and trigger efficiency vs the injected charge. Moreover, the dynamic range of the ASIC is also reported.
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