AI 中文总结
该研究开发了基于BETA ASIC的可扩展读出系统，经测试其性能满足星载多通道SiPM探测器要求，可用于HERD任务的FIT探测器。
AI 中文摘要
我们介绍了一种基于BETA专用集成电路（ASIC）的可扩展读出系统的设计、配置与性能表征，该系统旨在满足星载仪器中多通道硅光电倍增管（SiPM）探测器对噪声、线性度、动态范围和功耗的严格要求。该读出电子设备由模块化接口板（FIBs）组成，每个接口板搭载多个BETA ASIC，并由现场可编程门阵列（FPGA）控制，FPGA负责配置、数据采集和全局触发生成。我们在专用光学装置中测试了多个BETA FIBs，该装置可实现大量通道的同时读出。使用滨松（Hamamatsu）为FIT探测器制造的三个S13552-10 SiPM阵列对系统性能进行了评估，FIT探测器是为HERD任务中带电宇宙射线粒子的径迹和电荷测量开发的闪烁光纤径迹仪。我们描述了该读出系统的配置程序和性能测量，包括增益校准、线性度表征和阈值响应。此外，我们还介绍了用于识别FIT探测器中电离粒子的全局内部触发逻辑的开发。结果表明，所开发的基于BETA的读出系统具有稳定性、可扩展性，适用于空间实验中的大规模多通道SiPM探测器应用。
英文摘要
We present the design, configuration, and performance characterization of a scalable readout system based on the BETA application-specific integrated circuit (ASIC), developed to meet stringent requirements on noise, linearity, dynamic range, and power consumption for multi-channel silicon photomultiplier (SiPM) detectors in spaceborne instrumentation. The readout electronics consists of modular interface boards (FIBs) hosting multiple BETA ASICs and controlled by a field-programmable gate array (FPGA), which provides configuration, data acquisition, and global trigger generation. Multiple BETA FIBs were tested in a dedicated optical setup enabling simultaneous readout of a large number of channels. The system performance was evaluated using three S13552-10 SiPM arrays manufactured by Hamamatsu for the FIT detector, a scintillating-fiber tracker developed for charged cosmic-ray particle tracking and charge measurement in the HERD mission. We describe the configuration procedures and performance measurements of the readout system, including gain calibration, linearity characterization, and threshold response. In addition, we present the development of a global internal trigger logic for the identification of ionizing particles in the FIT detector. The results demonstrate the stability, scalability, and suitability of the developed BETA-based readout system for large-scale multi-channel SiPM detector applications in space experiments.
Commentsaccepted for publication in JINST
DOI：10.1088/1748-0221/21/09/P09008
