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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2311.02027 |
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| _version_ | 1866929194829611008 |
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| author | Sorenson, Josef Hoeferkamp, Martin Kramberger, Gregor Seidel, Sally Si, Jiahe |
| author_facet | Sorenson, Josef Hoeferkamp, Martin Kramberger, Gregor Seidel, Sally Si, Jiahe |
| contents | Low gain avalanche detectors (LGADs) deliver excellent timing resolution, which can mitigate mis-assignment of vertices associated with pileup at the High Luminosity LHC and other future hadron colliders. The most highly irradiated LGADs will be subject to $2.5 \times10^{15} \mathrm{n}_\mathrm{eq} \mathrm{cm}^{-2}$ of hadronic fluence during HL-LHC operation; their performance must tolerate this. Hamamatsu Photonics K.K. and Fondazione Bruno Kessler LGADs have been irradiated with 400 and 500 MeV protons respectively in several steps up to $1.5 \times10^{15} \mathrm{n}_\mathrm{eq} \mathrm{cm}^{-2}$. Measurements of the acceptor removal constants of the gain layers, evolution of the timing resolution and charge collection with damage, and inter-channel isolation characteristics, for a variety of design options, are presented here. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_02027 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Investigation of low gain avalanche detectors exposed to proton fluences beyond 10$^{15}$ n$_\mathrm{eq}$cm$^{-2}$ Sorenson, Josef Hoeferkamp, Martin Kramberger, Gregor Seidel, Sally Si, Jiahe Instrumentation and Detectors High Energy Physics - Experiment Low gain avalanche detectors (LGADs) deliver excellent timing resolution, which can mitigate mis-assignment of vertices associated with pileup at the High Luminosity LHC and other future hadron colliders. The most highly irradiated LGADs will be subject to $2.5 \times10^{15} \mathrm{n}_\mathrm{eq} \mathrm{cm}^{-2}$ of hadronic fluence during HL-LHC operation; their performance must tolerate this. Hamamatsu Photonics K.K. and Fondazione Bruno Kessler LGADs have been irradiated with 400 and 500 MeV protons respectively in several steps up to $1.5 \times10^{15} \mathrm{n}_\mathrm{eq} \mathrm{cm}^{-2}$. Measurements of the acceptor removal constants of the gain layers, evolution of the timing resolution and charge collection with damage, and inter-channel isolation characteristics, for a variety of design options, are presented here. |
| title | Investigation of low gain avalanche detectors exposed to proton fluences beyond 10$^{15}$ n$_\mathrm{eq}$cm$^{-2}$ |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2311.02027 |