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arXiv 1508.06296astro-ph.IM
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TARGET:切伦科夫望远镜阵列读出电子学的解决方案

TARGET: toward a solution for the readout electronics of the Cherenkov Telescope Array

L. Tibaldo, J. A. Vandenbroucke, A. M. Albert, S. Funk, T. Kawashima, M. Kraus, A. Okumura, L. Sapozhnikov, H. Tajima, G. S. Varner, T. Wu, A. Zink

摘要:

TARGET是一种专用集成电路(ASIC),旨在读出利用大气簇射切伦科夫辐射成像的甚高能伽马射线望远镜相机中的光电传感器记录的信号。目标功能包括高速率采样(通常为1 GSample/s)、数字化和触发四个相邻像素的总和。小尺寸、每个ASIC(16)读出的通道数多、每个通道的成本低、触发延迟的深度缓冲(在1 GSample/s时约为16 $μ$ s)使得TARGET非常适合于具有大量望远镜的系统中的读出,这些望远镜配备有紧凑型光电传感器,如多阳极或硅光电倍增器与双镜光学器件的组合。这种系统的可能优点是更好的灵敏度、更大的视场和改进的角分辨率。最新的两代TARGET ASIC TARGET 5和TARGET 7即将首次用于切伦科夫望远镜阵列(CTA)项目框架内提出的两个小型和中型双镜望远镜原型。在这篇文章中,我们报告了目标ASIC的性能,并讨论了未来的发展。

英文摘要:

TARGET is an application specific integrated circuit (ASIC) designed to read out signals recorded by the photosensors in cameras of very-high-energy gamma-ray telescopes exploiting the imaging of Cherenkov radiation from atmospheric showers. TARGET capabilities include sampling at a high rate (typically 1 GSample/s), digitization, and triggering on the sum of four adjacent pixels. The small size, large number of channels read out per ASIC (16), low cost per channel, and deep buffer for trigger latency (~16 $μ$s at 1 GSample/s) make TARGET ideally suited for the readout in systems with a large number of telescopes instrumented with compact photosensors like multi-anode or silicon photomultipliers combined with dual-mirror optics. The possible advantages of such systems are better sensitivity, a larger field of view, and improved angular resolution. The two latest generations of TARGET ASICs, TARGET 5 and TARGET 7, are soon to be used for the first time in two prototypes of small-sized and medium-sized dual-mirror telescopes proposed in the framework of the Cherenkov Telescope Array (CTA) project. In this contribution we report on the performance of the TARGET ASICs and discuss future developments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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