Design and simulation of the High-Energy Proton Beam Telescope
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866915799508189184 |
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| author | Li, Lan-Kun Gao, Ze Yu, Ying-Hao Jin, Liang-Cheng-Long Dong, Ming-Yi Liu, Ren-Hong Zhang, Hong-Yu Xu, Chang Jing, Han-Tao Guo, Yu-Hang Ou-Yang, Qun |
| author_facet | Li, Lan-Kun Gao, Ze Yu, Ying-Hao Jin, Liang-Cheng-Long Dong, Ming-Yi Liu, Ren-Hong Zhang, Hong-Yu Xu, Chang Jing, Han-Tao Guo, Yu-Hang Ou-Yang, Qun |
| contents | A high-resolution beam telescope is essential for the precise characterization of silicon pixel sensors. As part of the CSNS-II upgrade project, a High-Energy Proton Beam Telescope (HEPTel) based on monolithic active pixel sensors (MAPS) has been designed for the forthcoming High-Energy Proton Experimental Station (HPES), which will provide 0.8 to 1.6 GeV single-particle proton beams. HEPTel consists of six ultra-thin telescope modules, with a material budget per module of about 0.061% X0. Simulated with a 1.6 GeV proton beam, the telescope is expected to achieve a resolution of about 1.83 micrometers. Additionally, a dedicated readout electronics system and a Data Acquisition (DAQ) system have been designed for HEPTel, based on which a preliminary test system was established for beam tests. The beam test results with 1.3 GeV electrons demonstrated a single-module resolution of about 5.77 micrometers, an overall telescope resolution of about 2.70 micrometers, and a detection efficiency above 99.5%. These results validate the HEPTel design and confirm its capability for forthcoming proton-beam experiments at HPES. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_13982 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Design and simulation of the High-Energy Proton Beam Telescope Li, Lan-Kun Gao, Ze Yu, Ying-Hao Jin, Liang-Cheng-Long Dong, Ming-Yi Liu, Ren-Hong Zhang, Hong-Yu Xu, Chang Jing, Han-Tao Guo, Yu-Hang Ou-Yang, Qun Instrumentation and Detectors A high-resolution beam telescope is essential for the precise characterization of silicon pixel sensors. As part of the CSNS-II upgrade project, a High-Energy Proton Beam Telescope (HEPTel) based on monolithic active pixel sensors (MAPS) has been designed for the forthcoming High-Energy Proton Experimental Station (HPES), which will provide 0.8 to 1.6 GeV single-particle proton beams. HEPTel consists of six ultra-thin telescope modules, with a material budget per module of about 0.061% X0. Simulated with a 1.6 GeV proton beam, the telescope is expected to achieve a resolution of about 1.83 micrometers. Additionally, a dedicated readout electronics system and a Data Acquisition (DAQ) system have been designed for HEPTel, based on which a preliminary test system was established for beam tests. The beam test results with 1.3 GeV electrons demonstrated a single-module resolution of about 5.77 micrometers, an overall telescope resolution of about 2.70 micrometers, and a detection efficiency above 99.5%. These results validate the HEPTel design and confirm its capability for forthcoming proton-beam experiments at HPES. |
| title | Design and simulation of the High-Energy Proton Beam Telescope |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2602.13982 |