Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. submitted time 2017-11-10
Zheng Quan
Zhi-gang Wang
Ming Xu
Yong-wei Dong
Jun-jing Wang
Guang-peng An
Xin Liu
Tian-wei Bao
Li Zhang
Rui-jie Wang
Jun-guang Lv
Bo-bing Wu
Shuang-nan Zhang
Abstract：The High Energy cosmic Radiation Detection (HERD) facility is a space mission designed for detecting cosmic ray (CR) electrons, γ-rays up to tens of TeV and CR nuclei from proton to iron up to several PeV. The main instrument of HERD is a 3-D imaging calorimeter (CALO) composed of nearly ten thousand cubic LYSO crystals. A large dynamic range of single HERD CALO Cell (HCC) is necessary to achieve HERD’s PeV observation objectives, which means that the response of HCC should maintain a good linearity from minimum ionizing particle (MIP) calibration to PeV shower maximum. In order to study the linearity of HCC over such a large energy range, a beam test has been implemented at the E2 and E3 beam lines of BEPC. High intensity pulsed electron beam provided by E2 line are used for producing high energy density within HCC; π+/proton provided by E3 line are used for HCC calibration. The results show that no saturation effect occurs and the linearity of HCC is better than 10% from 30 MeV (1 MIP) to 1.1×103 TeV (energy density is 93 TeV/cm3), which can meet the requirement mentioned above.
Peer Review Status:
Awaiting Review
Subjects: Physics >> Nuclear Physics submitted time 2016-09-14
Xiaoyuan Huang
Anna S. Lamperstorfer
Yue-Lin Sming Tsai
Ming Xu
Qiang Yuan Jin Chang
Yong-Wei Dong
Bing-Liang Hu
Jun-Guang L╱
Le Wang
Bo-Bing Wu
Shuang-Nan Zhang
Abstract： HERD is the High Energy cosmic-Radiation Detection instrument proposed to operate onboard China's space station in the 2020s. It is designed to detect energetic cosmic ray nuclei, leptons and photons with a high energy resolution (∼1% for electrons and photons and 20% for nuclei) and a large geometry factor (>3m2sr for electrons and diffuse photons and >2m2sr for nuclei). In this work we discuss the capability of HERD to detect monochromatic γ-ray lines, based on simulations of the detector performance. It is shown that HERD will be one of the most sensitive instruments for monochromatic γ-ray searches at energies between ∼10 to a few hundred GeV. Above hundreds of GeV, Cherenkov telescopes will be more sensitive due to their large effective area. As a specific example, we show that a good portion of the parameter space of a supersymmetric dark matter model can be probed with HERD.
Peer Review Status:Awaiting Review
Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2025-02-10
Abstract： 高能宇宙辐射探测设施 （HERD） 是中国空间站的一项计划中的实验。硅电荷探测器 （SCD） 是 HERD 中的子探测器之一，用于探测具有高电荷分辨率的宇宙射线原子核。在这项工作中，我们提出了一种紧凑的 SCD 读出电子系统，该系统专为 HERD 重离子束测试而设计。它由具有 200 个输入通道的前端读出电子设备、数据采集和数据管理电子设备组成。测试结果表明，在连接硅条探测器的情况下，SCD 读出系统具有低噪声，动态范围可以从 200 fC 扩展到 1200 fC，宇宙射线测试按预期进行。
Peer Review Status:Awaiting Review
Subjects: Nuclear Science and Technology >> Nuclear Detection Technology and Nuclear Electronics submitted time 2024-03-07
Jieyu Zhu
Haibo Yang
Yangzhou Su
Fenhua Lu
Yan Yang
Xiwen Liu
Ping Wei
Shucai Wan
Haoqing Xie
Xianqin Li
Cong Dai
Huijun Hu
Hongbang Liu
Shuwen Tang
Chengxin Zhao
Abstract： The High Energy Cosmic-Radiation Detection (HERD) facility is planned to launch in 2027 and scheduled to be installed on the China Space Station. It serves as a dark matter particle detector, a cosmic ray instrument, and an observatory for high-energy gamma rays. A transition radiation detector placed on one of its lateral sides serves dual purpose, (i) calibrating HERD’s electromagnetic calorimeter in the TeV energy range, and (ii) serving as an independent detector for high-energy gamma rays. In this paper, the prototype readout electronics design of the transition radiation detector is demonstrated, which aims to accurately measure the charge of the anodes using the SAMPA application specific integrated circuit chip. The electronic performance of the prototype system is evaluated in terms of noise, linearity, and resolution. Through the presented design, each electronic channel can achieve a dynamic range of 0-100 fC, the RMS noise level not exceeding 0.15 fC, and the integral nonlinearity was less than 0.2%. To further verify the readout electronic performance, a joint test with the detector was carried out, and the results show that the prototype system can satisfy the requirements of the detector’s scientific goals.
Peer Review Status:Awaiting Review
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