分类： 核科学技术 >> 核探测技术与核电子学 提交时间： 2025-02-10
摘要： 7 over multiple past decades,leading to a deeper understanding8of theintrinsicinteractions constituting thefieldsofParticle9 and Astroparticle Physics.Although important results have10 been acquired by indirect (ground-based) experiments over11theyears,there is an imminentneed toexplore highly ener-12 getic CR particles from GeV up to PeV and gamma-rays via13 direct observations, carried out by space-borne instruments.14The High Energy cosmic Radiation Detector (HERD）is15 a prominent space-borne instrument to be installed on-board16 the Chinese Space Station (CSS) around 2027 [3,4].The17 main scientific objectives of HERD include the search for sig-18 nals of dark matter annihilation products, precise cosmic ray19 spectrum and composition measurements up to the knee en-20 ergy, and high energy gamma-ray monitoring and survey [5-217].ThedatagatheredfromtheHERDdetectorscanprovide22valuableinformationfor developingradiation shielding tech-23nologies andmitigating therisksposedbycosmicradiation24 during long-duration space missions.The HERD project also25holds significantimplications for fundamentalphysicsre26search.Bystudyingthepropertiesofcosmicrays,researchers27 can probe the boundaries of particle physics.
分类： 物理学 >> 核物理学 提交时间： 2025-05-28
Miao, Mr. Dexing
Xu, Prof. Zijun
Xiang, Dr. Zhiyu
Liu, Dr. Pingcheng
Ambrosi, Prof. Giovanni
Barbanera, Dr. Mattia
Cai, Dr. Mengke
Cai, Prof. Xudong
Chou, Dr. Hsin-Yi
Duranti, Prof. Matteo
Formato, Dr. Valerio
Ionica, Dr. Maria
Jiang, Dr. Yaozu
Jin, Mr. LiangChengLong
Koutsenko, Dr. Vladimir
Li, Mr. Qinze
Liu, Mr. Cong
Lv, Mr. Xingjian
Oliva, Dr. Alberto
Peng, Wenxi
摘要： A silicon microstrip detector (SSD) has been developed to have state of the art spatial resolution and a large sensitive area under stringent power constraints. The design incorporates three floating strips with their bias resistors inserted between two aluminum readout strips. Beam test measurements with the single sensor confirmed that this configuration achieves a total detection efficiency of 99.8% and spatial resolution 7.6 μm for MIPs. A double-η algorithm was developed to optimize hit position reconstruction for this SSD. The design can be adapted for large area silicon detectors.
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