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| Format: | Preprint |
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2023
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| Online-Zugang: | https://arxiv.org/abs/2401.00373 |
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| _version_ | 1866929304715132928 |
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| author | Luo, Lingyin Fang, Deqing Han, Ke Huang, Di Shang, Xiaofeng Wang, Anqing Wang, Qiuhong Wang, Shaobo Wang, Siguang Xiao, Xiang Yan, Binbin Yan, Xiyu |
| author_facet | Luo, Lingyin Fang, Deqing Han, Ke Huang, Di Shang, Xiaofeng Wang, Anqing Wang, Qiuhong Wang, Shaobo Wang, Siguang Xiao, Xiang Yan, Binbin Yan, Xiyu |
| contents | With the expanding reach of physics, xenon-based detectors such as PandaX-4T in the China Jinping Underground Laboratory aim to cover an energy range from sub-keV to multi-MeV. A linear response of the photomultiplier tubes (PMTs) is required for both scintillation and electroluminescence signals. Through a dedicated bench test, we investigated the cause of the non-linear response in the Hamamatsu R11410-23 PMTs used in PandaX-4T. The saturation and suppression of the PMT waveform observed during the commissioning of PandaX-4T were caused by the high-voltage divider base. The bench test data validated the de-saturation algorithm used in the PandaX-4T data analysis. We also confirmed the improvement in linearity of a new PMT base design, which will be used to upgrade the PMT readout system in PandaX-4T. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_00373 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Improvement on the Linearity Response of PandaX-4T with new Photomultiplier Tubes Bases Luo, Lingyin Fang, Deqing Han, Ke Huang, Di Shang, Xiaofeng Wang, Anqing Wang, Qiuhong Wang, Shaobo Wang, Siguang Xiao, Xiang Yan, Binbin Yan, Xiyu Instrumentation and Detectors High Energy Physics - Experiment With the expanding reach of physics, xenon-based detectors such as PandaX-4T in the China Jinping Underground Laboratory aim to cover an energy range from sub-keV to multi-MeV. A linear response of the photomultiplier tubes (PMTs) is required for both scintillation and electroluminescence signals. Through a dedicated bench test, we investigated the cause of the non-linear response in the Hamamatsu R11410-23 PMTs used in PandaX-4T. The saturation and suppression of the PMT waveform observed during the commissioning of PandaX-4T were caused by the high-voltage divider base. The bench test data validated the de-saturation algorithm used in the PandaX-4T data analysis. We also confirmed the improvement in linearity of a new PMT base design, which will be used to upgrade the PMT readout system in PandaX-4T. |
| title | Improvement on the Linearity Response of PandaX-4T with new Photomultiplier Tubes Bases |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2401.00373 |