Investigations of Charge Collection and Signal Timing in a multi-pixel Silicon Drift Detector
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866911023627239424 |
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| author | Forstner, Christian Urban, Korbinian Carminati, Marco Edzards, Frank Fiorini, Carlo Lebert, Manuel Lechner, Peter Siegmann, Daniel Spreng, Daniela Mertens, Susanne |
| author_facet | Forstner, Christian Urban, Korbinian Carminati, Marco Edzards, Frank Fiorini, Carlo Lebert, Manuel Lechner, Peter Siegmann, Daniel Spreng, Daniela Mertens, Susanne |
| contents | Sterile neutrinos are a minimal extension of the Standard Model of particle physics and a promising candidate for dark matter if their mass is in the keV-range. The Karlsruhe Tritium Neutrino experiment (KATRIN), equipped with a novel multi-pixel silicon drift detector array, the TRISTAN detector, will be capable of searching for these keV-scale sterile neutrinos by investigating the kinematics of the tritium $β$-decay. This measurement will be performed after the completion of the neutrino mass measurement campaign. To detect a sterile neutrino signal with a high sensitivity, a profound understanding of the detector response is required. In this work, we report on the characterization of a 7-pixel TRISTAN prototype detector with a laser system. We present the experimental results obtained in high-resolution scans of the detector surface with a focused laser beam and demonstrate how the charge collection and the timing of the signals generated in the detector is related to the detector geometry. A comparison of the experimental data with simulations shows a good agreement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_08901 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Investigations of Charge Collection and Signal Timing in a multi-pixel Silicon Drift Detector Forstner, Christian Urban, Korbinian Carminati, Marco Edzards, Frank Fiorini, Carlo Lebert, Manuel Lechner, Peter Siegmann, Daniel Spreng, Daniela Mertens, Susanne Instrumentation and Detectors High Energy Physics - Experiment Sterile neutrinos are a minimal extension of the Standard Model of particle physics and a promising candidate for dark matter if their mass is in the keV-range. The Karlsruhe Tritium Neutrino experiment (KATRIN), equipped with a novel multi-pixel silicon drift detector array, the TRISTAN detector, will be capable of searching for these keV-scale sterile neutrinos by investigating the kinematics of the tritium $β$-decay. This measurement will be performed after the completion of the neutrino mass measurement campaign. To detect a sterile neutrino signal with a high sensitivity, a profound understanding of the detector response is required. In this work, we report on the characterization of a 7-pixel TRISTAN prototype detector with a laser system. We present the experimental results obtained in high-resolution scans of the detector surface with a focused laser beam and demonstrate how the charge collection and the timing of the signals generated in the detector is related to the detector geometry. A comparison of the experimental data with simulations shows a good agreement. |
| title | Investigations of Charge Collection and Signal Timing in a multi-pixel Silicon Drift Detector |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2409.08901 |