Laboratory and beam-test performance study of a 55$~μ$m pitch iLGAD sensor bonded to a Timepix3 readout chip
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916556694355968 |
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| author | Svihra, Peter Bates, Richard Braach, Justus Buschmann, Eric Dannheim, Dominik Maneuski, Dima Moffat, Neil Otarid, Younes |
| author_facet | Svihra, Peter Bates, Richard Braach, Justus Buschmann, Eric Dannheim, Dominik Maneuski, Dima Moffat, Neil Otarid, Younes |
| contents | This contribution reports on characterisation results of a large-area (2$~\mathrm{cm}^2$) small pitch (55$~μ$m) inverse Low-Gain Avalanche Detector (iLGAD), bonded to a Timepix3 readout chip. The ilGAD sensors were produced by Micron Semiconductor Ltd with the goal to obtain good gain uniformity and maximise the fill-factor -- an issue present with standard small-pitch LGAD designs. We have conducted detailed performance evaluations using both X-ray calibrations and beam tests. An X-ray fluorescence setup has been used to obtain energy calibration and to identify the optimal operating settings of the new devices, whereas the extensive beam tests allowed for a detailed evaluation of the detector performance. The beam-tests were performed at the CERN SPS North Area H6 beamline, using a 120 GeV/c pion beam. The reference tracking and time-stamping is achieved by a Timepix3-based beam telescope setup.
The results show a gain of around 5 with very good uniformity, measured across the whole gain area, as well as a hit time resolution down to 1.3 ns without correcting for the time-walk effects. Furthermore, it is shown that the gain opens the possibility of a good X-ray energy resolution down to 4.5 keV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_20194 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Laboratory and beam-test performance study of a 55$~μ$m pitch iLGAD sensor bonded to a Timepix3 readout chip Svihra, Peter Bates, Richard Braach, Justus Buschmann, Eric Dannheim, Dominik Maneuski, Dima Moffat, Neil Otarid, Younes Instrumentation and Detectors This contribution reports on characterisation results of a large-area (2$~\mathrm{cm}^2$) small pitch (55$~μ$m) inverse Low-Gain Avalanche Detector (iLGAD), bonded to a Timepix3 readout chip. The ilGAD sensors were produced by Micron Semiconductor Ltd with the goal to obtain good gain uniformity and maximise the fill-factor -- an issue present with standard small-pitch LGAD designs. We have conducted detailed performance evaluations using both X-ray calibrations and beam tests. An X-ray fluorescence setup has been used to obtain energy calibration and to identify the optimal operating settings of the new devices, whereas the extensive beam tests allowed for a detailed evaluation of the detector performance. The beam-tests were performed at the CERN SPS North Area H6 beamline, using a 120 GeV/c pion beam. The reference tracking and time-stamping is achieved by a Timepix3-based beam telescope setup. The results show a gain of around 5 with very good uniformity, measured across the whole gain area, as well as a hit time resolution down to 1.3 ns without correcting for the time-walk effects. Furthermore, it is shown that the gain opens the possibility of a good X-ray energy resolution down to 4.5 keV. |
| title | Laboratory and beam-test performance study of a 55$~μ$m pitch iLGAD sensor bonded to a Timepix3 readout chip |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2409.20194 |