Timepix3: single-pixel multi-hit energy-measurement behavior
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866910364217638912 |
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| author | Bromberger, Hubertus Pennicard, David Ballabriga, Rafael Trippel, Sebastian Küpper, Jochen |
| author_facet | Bromberger, Hubertus Pennicard, David Ballabriga, Rafael Trippel, Sebastian Küpper, Jochen |
| contents | The event-driven hybrid-pixel detector readout chip, Timepix3, has the ability to simultaneously measure the time of an event on the nanosecond timescale and the energy deposited in the sensor. However, the behaviour of the system when two events are recorded in quick succession of each other on the same pixel was not studied in detail previously. We present experimental measurements, circuit simulations, and an empirical model for the impact of a preceding event on this energy measurements, which can result in a loss as high as 70~\%. Accounting for this effect enables more precise compensation, particularly for phenomena like timewalk. This results in significant improvements in time resolution -- in the best case, multiple tens of nanoseconds -- when two events happen in rapid succession. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_07184 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Timepix3: single-pixel multi-hit energy-measurement behavior Bromberger, Hubertus Pennicard, David Ballabriga, Rafael Trippel, Sebastian Küpper, Jochen Instrumentation and Detectors Atomic and Molecular Clusters The event-driven hybrid-pixel detector readout chip, Timepix3, has the ability to simultaneously measure the time of an event on the nanosecond timescale and the energy deposited in the sensor. However, the behaviour of the system when two events are recorded in quick succession of each other on the same pixel was not studied in detail previously. We present experimental measurements, circuit simulations, and an empirical model for the impact of a preceding event on this energy measurements, which can result in a loss as high as 70~\%. Accounting for this effect enables more precise compensation, particularly for phenomena like timewalk. This results in significant improvements in time resolution -- in the best case, multiple tens of nanoseconds -- when two events happen in rapid succession. |
| title | Timepix3: single-pixel multi-hit energy-measurement behavior |
| topic | Instrumentation and Detectors Atomic and Molecular Clusters |
| url | https://arxiv.org/abs/2403.07184 |