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The Response of 3D Imaging BGO Calorimeter of DAMPE to TeV e+/e- in space

IEEE Transactions on Nuclear Science 2025年

作者： Zhao, Cong Liu, Chengming Xu, Enheng Sun, Haoran Nie, Yu Rong, Yi Wang, Guifu Yan, Mingyu Wei, Yifeng Wang, Xiaolian Xu, Zizong Zhang, Yunlong Huang, Guangshun University of Science and Technology of China State Key Laboratory of Particle Detection and Electronics Department of Modern Physics Anhui Hefei230026 China - Sezione di Perugia PerugiaI-06123 Italy

The DArk Matter particle Explorer (DAMPE) is a space-based experiment to indirectly search for dark matter by measuring the energy spectra of high-energy cosmic ray electrons and positrons (CREs) up to 10 TeV. DAMPE possesses the capability to measure CREs at high energies, offering valuable insights into the physical origins of TeV CREs. The BGO calorimeter is the key sub-detector for precise energy measurements. In this paper, we present a new calibration method of high dynamic range readout of the BGO calorimeter. We also study the behavior of CREs beyond TeV energies in the BGO calorimeter, focusing on their shower development, which has a good electron/proton separation capability. © 1963-2012 IEEE.

关键词： Cosmic rays

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PandaX-xT——A deep underground multi-ten-tonne liquid xenon observatory

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 105-120页

作者： Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Chen Cheng Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Lisheng Geng Karl Giboni Linhui Gu Xunan Guo Xuyuan Guo Zhichao Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Junting Huang Zhou Huang Ruquan Hou Yu Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shuaijie Li Tao Li Qing Lin Jianglai Liu Congcong Lu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yajun Mao Yue Meng Xuyang Ning Binyu Pang Ningchun Qi Zhicheng Qian Xiangxiang Ren Nasir Shaheed Xiaofeng Shang Xiyuan Shao Guofang Shen Lin Si Wenliang Sun Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Xu Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Yuan Wu Mengjiao Xiao Xiang Xiao Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Ying Yuan Zhe Yuan Youhui Yun Xinning Zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Wei Zhang Yang Zhang Yingxin Zhang Yuanyuan Zhang Li Zhao Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou Yubo Zhou Zhizhen Zhou New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Beihang UniversityBeijing 102206China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Southern Center for Nuclear-Science Theory(SCNT) Institute of Modern PhysicsChinesen Academy of SciencesHuizhou 516000China Yalong River Hydropower Development Company Ltd.Chengdu 610051China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China School of Physics Nankai UniversityTianjin 300071China SJTU Paris Elite I

We propose a major upgrade to the existing PandaX-4T experiment at the China Jinping Underground *** new experiment,PandaX-xT,will be a multi-ten-tonne liquid xenon,ultra-low background,and general-purpose *** full-scaled PandaX-xT contains a 43-t liquid xenon active *** an experiment will significantly advance our fundamental understanding of particle physics and *** sensitivity of dark matter direct detection will be improved by nearly two orders of magnitude compared to the current best limits,approaching the so-called“neutrino floor”for a dark matter mass above 10 GeV/c^(2),providing a key test to the Weakly Interacting Massive particle *** searching for the neutrinoless double beta decay of^(136)Xe isotope in the detector,the effective Majorana neutrino mass can be measured to a 10-41 meV/c^(2) sensitivity,providing a key test to the Dirac/Majorana nature of *** neutrinos and other ultra-rare interactions can also be measured and searched for with an unprecedented background level,opening up new windows of *** on the findings,PandaX-xT will seek the next stage upgrade utilizing isotopic separation of natural xenon.

关键词： dark matter neutrino less double beta decay astrophysical neutrinos liquid xenon

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Quantum frontiers in high energy physics

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Science China(Physics,Mechanics & Astronomy) 2025年第6期Mechanics & Astronomy) .卷 53-75页

作者： Yaquan Fang Christina Gao Ying-Ying Li Jing Shu Yusheng Wu Hongxi Xing Bin Xu Lailin Xu Chen Zhou Institute of High Energy Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Department of Physics Southern University of Science and Technology Interdisciplinary Center for Theoretical Study University of Science and Technology of China Peng Huanwu Center for Fundamental Theory State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Center for High Energy Physics Peking University Beijing Laser Acceleration Innovation Center State Key Laboratory of Particle Detection and Electronics Department of Modern Physics University of Science and Technology of China Key Laboratory of Atomic and Subatomic Structure and Quantum Control (MOE) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Institute of Quantum MatterSouth China Normal University Guangdong-Hong Kong Joint Laboratory of Quantum Matter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing Center South China Normal University Southern Center for Nuclear-Science Theory Institute of Modern Physics Chinese Academy of Sciences

Numerous challenges persist in high energy physics(HEP), the addressing of which requires advancements in detection technology, computational methods, data analysis frameworks, and phenomenological designs. We provide a concise yet comprehensive overview of recent progress across these areas, in line with advances in quantum technology. We will discuss the potential of quantum devices in detecting subtle effects indicative of new physics BSM, the transformative role of quantum algorithms and large-scale quantum computers in studying real-time non-perturbative dynamics in the early universe and at colliders, as well as in analyzing complex HEP data. Additionally, we emphasize the importance of integrating quantum properties into HEP experiments to test quantum mechanics at unprecedented high-energy scales and search for hints of new physics. Looking ahead, the continued integration of resources to fully harness these evolving technologies will enhance our efforts to deepen our understanding of the fundamental laws of nature.

关键词： high energy physics quantum sensing quantum simulations quantum machine learning quantum information

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A back-end electronics based on optical fiber communication for small to medium-scale physics experiments

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Journal of Instrumentation 2025年第5期20卷

作者： Liu, Jianguo Wang, Yu Feng, Changqing Liu, Shubin Chen, Qian State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei230026 China Department of Modern Physics University of Science and Technology of China Hefei230026 China

This paper introduces a back-end electronics design for small and medium-sized physics experiments. It adopts a daughter-motherboard structure to provide flexibility. The motherboard is mainly responsible for data preprocessing and communication with the server or computer. The daughterboards integrated communication interfaces and trigger logic unit (TLU), which are responsible for connecting to front-end cards and other external devices. For data transmission interface, different type of interfaces can be flexibly selected according to data bandwidth requirements. This design supports up to 32 optical fiber interfaces based on a field-programmable gate array (FPGA) of normal IOs with 400 Mbps of data bandwidth for each channel. At the same time, it also supports 16 high-speed communication interfaces based on GTX port with 2.4 Gbps data bandwidth of each channel. For the TLU function, this design has 8 HDMI interfaces and one RJ45 interface to provide synchronous triggers and other control signals, and it has six analog LEMO interfaces and four digital LEMO interfaces to accept signals from an external source. These design specifications can satisfy the needs of most small and medium-sized experiments. This set of back-end electronics has been successfully used in experiments such as PandaX-III, VLAST, and Muography. Moreover, it has successfully conducted beam tests with the readout of VLAST detectors at CERN. © 2025 IOP Publishing Ltd and Sissa Medialab. All rights, including for text and data mining, AI training, and similar technologies, are reserved.

关键词： Field programmable gate arrays (FPGA)

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Design method for efficiently recording freeform holographic optical elements 4

Design method for efficiently recording freeform holographic...

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4th International Computational Imaging Conference, CITA 2024

作者： Zhuang, Yabao Zhu, Liquan He, Long Chen, Xiangqian Xu, Lixin Hefei Full Color Laser Display Technology Co. Ltd. Anhui Hefei230031 China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Anhui Hefei230026 China Department of Optics and Optical Engineering University of Science and Technology of China Anhui Hefei230026 China Advanced Laser Technology Laboratory of Anhui Province Anhui Hefei230026 China

ISBN: (纸本)9781510688834

In the field of augmented reality (AR) displays, freeform holographic optical elements (HOEs) offer significant advantages, such as compactness, wavefront modulation for true 3D volumetric display, and high environmental light transparency. However, the recording of freeform surface phase remains a challenge, primarily due to the high cost and inflexibility of wavefront correction elements, as well as the complexity of hologram printers. However, by properly allocating optical focal power, it is possible to reduce wavefront recording errors, thereby decreasing the number of patches required. Based on this, we propose an efficient recording method for freeform HOEs using phase spatial light modulators (SLMs) in this paper. The imaging performance is optimized using the optical design software ZEMAX. For simplicity, we consider a small relative aperture AR head-mounted display (HMD) system, where the wavefront is reconstructed with a spherical wave approximation of large radius. This research serves as a valuable reference for designing and fabricating AR optical systems. © 2025 SPIE.

关键词： Helmet mounted displays

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Research on trigger technology of MRPC TOF-PET system and imaging results of 22Na radioactive source

arXiv

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arXiv 2025年

作者： Liu, Jianing Ma, Yuelei Chen, Ziyang Li, Zhenyan Wang, Yi Guo, Baohong Han, Dong Li, Yuanjing Key Laboratory of Particle and Radiation Imaging Department of Engineering Physics Tsinghua University Beijing100084 China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei230026 China Modern Physics Department University of Science and Technology of China Hefei230026 China

This study focuses on developing a self-triggered data acquisition system and a noise reduction algorithm for the Multi-gap Resistive Plate Chamber (MRPC) Time-of-Flight Positron Emission Tomography (TOF-PET) system. The system integrates a fast front-end amplifier, a waveform digitization module based on the DRS4 chip, and an efficient noise reduction algorithm to address challenges such as high noise trigger rates and precise gamma-ray detection. The proposed self-triggered system, through threshold discrimination, coincidence logic, and continuous oscillation check, reduces the noise trigger rate to 0.004 Hz. Experimental results show that the system accurately localizes and images the 22Na radioactive source, and has a good time resolution of 162 ps FWHM for 0.511 MeV gamma rays. Copyright © 2025, The Authors. All rights reserved.

关键词： Gamma rays

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Status and Prospect of Weak Radiative Hyperon Decays

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Chinese Physics Letters 2025年第3期42卷 44-51页

作者： Rui-Xiang Shi Zekun Jia Li-Sheng Geng Haiping Peng Qiang Zhao Xiaorong Zhou Department of Physics Guangxi Normal UniversityGuilin 541004China Guangxi Key Laboratory of Nuclear Physics and Technology Guilin 541004China University of Science and Technology of China Hefei 230026China State Key Laboratory of Particle Detection and Electronics Hefei 230026China School of Physics Beihang UniversityBeijing 102206China Sino-French Carbon Neutrality Research Center ′Ecole Centrale de P′ekin/School of General EngineeringBeihang UniversityBeijing 100191China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Southern Center for Nuclear-Science Theory Institute of Modern PhysicsChinese Academy of SciencesHuizhou 516000China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Center for High Energy Physics Henan Academy of SciencesZhengzhou 450046China

Weak radiative hyperon decays represent a rich interplay between weak interactions and the internal structure of baryons,offering profound insights into Quantum Chromodynamics and weak *** experimental observations,particularly from BESIII,have revealed deviations from theoretical *** deviations could signal new physics or the need for refined theoretical models incorporating intermediate resonance *** review discusses recent theoretical advancements and key experimental findings,focusing on recent measurements from BESIII and their implications for strong interactions and baryon structure.

关键词： structure refined decay

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Ce3+-doped glass scintillator with high density and light yield for imaging application

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Ceramics International 2025年第15期51卷 19780-19786页

作者： Yang, Dong Ge, Kun Ban, Huiyun Yuan, Huiping Qian, Sen Hua, Zhehao Cai, Hua Chen, Danping Han, Jifeng Qiao, Xvsheng Ren, Jing Sun, Xinyuan Tang, Gao Yin, Shenghua Zhang, Minghui Xiao, Jiawen Beijing Glass Research Institute Beijing101111 China Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Particle Detection and Electronics Beijing100049 China State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan430070 China China Building Materials Academy Beijing100024 China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai201800 China Key Lab of Radiation Physics and Technology of MOE Sichuan University Chengdu610065 China Key Laboratory of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341003 China State Key Laboratory of Silicon and Advanced Semiconductor Materials & Department of Materials Science and Engineering Zhejiang University Hangzhou310027 China College of Physics and Optoelectronic Engineering Harbin Engineering University Harbin150001 China Department of Physics and Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials Jinggangshan University Ji'an343009 China College of Materials and Chemistry China Jiliang University Hangzhou310018 China Nuclear Instrument CO. LTD. Beĳing100176 China Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai201899 China College of Materials Science and Engineering Beijing University of Technology Beijing100124 China

A series of Ce3+-doped Gd2O3-GdF3-Al2O3-B2O3-SiO2 glass scintillators (GSCx and GLCx) were successfully synthesized in reducing atmosphere for future imaging application. The transmittance of GSCx glasses exceeds 85 % in range of 500–800 nm, and the cut-off edge red shifts as the Ce3+ concentration increases. In photoluminescence (PL), GSCx glass scintillators have a 360–600 nm broadband emission with a shoulder peak at around 450 nm. Meanwhile, the PL lifetime of GSCx glasses is close to the CeF3 crystals, and the PL QY of GSC3 glass scintillator reaches up 70.2 %. For scintillation application, the integral XEL intensity of GSC2 and GSC3 glasses is 31.3 % and 24.4 % of that of BGO crystal. GLC2 and GLC3 glasses exhibit similar spatial resolution of approximately 7 lp·mm−1. Moreover, the light yields of GSC2 and GSC3 glass scintillator are 1702 and 1690 ph/MeV excited by γ-ray, respectively. The nonproportionality of GSCx glasses is less than 3 % in the range of 100–1400 keV due to the large density and Zeff. As Ce3+ concentration increases, both the fast and slow components of the glasses decrease (103.7 ns–89.7 ns, 1454.4 ns–1012.8 ns), and the proportion of fast component also increased from 3.3 % to 4.7 %. For γ-ray imaging, the scintillation light events of the glass can be observed from SiPM array, and the central position (−2, −1) have the highest count rate of the system. The results show that GSCx and GLCx glass scintillators deserve further development for future applications. © 2025

关键词： Gamma rays

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Analysis of Beam Background for Time Projection Chamber at the High Luminosity Z-Pole Mode 42

Analysis of Beam Background for Time Projection Chamber at t...

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42nd International Conference on High Energy Physics, ICHEP 2024

作者： Zhang, Jinxian Qi, Huirong Chang, Yue Wang, Yifang Wang, Jianchun Zhang, Jian Deng, Zhi Liu, Canwen Shi, Haoyu Institute of High Energy Physics 19B Yuquan Road Beijing China University of Chinese Academy of Sciences No.1 Yanqihu East Road Beijing China State Key Laboratory of Particle Detection and Electronics 19B Yuquan Road Beijing China School of Physics Nankai University 94 Weijin Road Tianjin China Department of Engineering Physics Tsinghua University 30 Shuangqing Road Beijing China

The Time Projection Chamber (TPC), recognized for its high performance and low material budget, features a simple geometric structure and straightforward physical processing, making it the primary tracking detector for the Circular Electron-Positron Collider (CEPC). In this study, we focus on the beam background in the CEPC interaction region, which may affect TPC performance, as outlined in the latest CEPC detector Technical Design Report (TDR). We employ Monte Carlo simulations to model the beam background in the CEPC Z-pole mode, which is characterized by the highest luminosity and poses the greatest challenge to TPC performance. Through our simulation, we provide an optimistic assessment of the TPC's resilience to beam-induced background effects and discuss the implications for lower luminosity modes. This study contributes to the ongoing optimization of the TPC design and operation, and further research is needed to investigate backgrounds across various operational modes. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

关键词： Poles and zeros

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A high rate and high timing photoelectric detector prototype with RPC structure

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Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2025年 1078卷

作者： Zhao, Yiding Hu, Dongdong Shao, Ming Wang, Xu Zhou, Yi Zhou, Yingjie Liu, Jianbei Lv, Shuaike Tian, Xiangqi Wang, Anqi Lin, Xueshen Pang, Hao Sun, Yongjie State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China 96 Jinzhai Road AnHui Hefei230026 China Department of Modern Physics University of Science and Technology of China 96 Jinzhai Road AnHui Hefei230026 China

To meet the needs of high counting rate and high time resolution in future high energy physics experiments, a prototype of a gas photodetector with a Resistive Plate Chamber (RPC) structure was developed. We simulated the detector's performance using Garfield++ and utilized an ultraviolet laser to evaluate the single photoelectron performance of various mixed gases. The detector uses a low-resistivity (∼ 1.4 × 1010 Ωcm) float glass so that its rate capability is significantly higher than that of ordinary float glass (1012–1014 Ωcm). The laser test results show that in the MRPC gas mixture (R134a/iC4H10/SF6 (85/10/5)), the best single photoelectron time resolution is 20.3 ± 1.0 ps at an induced signal charge of 6 × 106 Qe. Increasing the concentration of iC4H10 can effectively reduce the probability of photon feedback, without changing the time resolution and maximum gain. In addition to its application in high-precision time measurement scenarios (e.g. T0 and TOF), the detector can also quantitatively evaluate the single photoelectron performance of various gases and will be utilized for identifying eco-friendly RPC gases. © 2025

关键词： Ultraviolet detectors

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