Yield and performance validation of the Monolithic Stitched Sensor (MOSS), the first wafer-scale prototype for the ALICE ITS3 upgrade
The ALICE Inner Tracking System upgrade (ITS3) will employ stitched, wafer-scale Monolithic Active Pixel Sensors (MAPS) for the first time in high-energy physics, achieving a material budget of only 0.09 %X 0 per layer. Its first stitched prototype, the Monolithic Stitched Sensor (MOSS), underwent s...
Enregistré dans:
| Auteur principal: | |
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| Format: | Article (Journal) |
| Langue: | anglais |
| Publié: |
2026
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| In: |
Journal of Instrumentation
Year: 2026, Volume: 21, Numéro: 03, Pages: 1-6 |
| ISSN: | 1748-0221 |
| DOI: | 10.1088/1748-0221/21/03/C03027 |
| Accès en ligne: | Verlag, kostenfrei, Volltext: https://doi.org/10.1088/1748-0221/21/03/C03027
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| Notes sur l'auteur: | M.W. Menzel, on behalf of the ALICE collaboration |
| Résumé: | The ALICE Inner Tracking System upgrade (ITS3) will employ stitched, wafer-scale Monolithic Active Pixel Sensors (MAPS) for the first time in high-energy physics, achieving a material budget of only 0.09 %X 0 per layer. Its first stitched prototype, the Monolithic Stitched Sensor (MOSS), underwent serial testing confirming sensor yield compliance with ITS3 requirements. In-beam tests show the device meets the ITS3 efficiency requirement of > 99% while maintaining a fake-hit rate below 0.1 hits/pixel/s, with performance sustained up to irradiation levels of 4 kGy and 4 × 1012 1 MeV neq cm-2. The sensor demonstrates excellent charge-collection properties and linearity between time-over-threshold and deposited energy in the 1.8 keV to 6.5 keV range in response to soft X-ray emissions. This article provides an overview of the validation steps and characterisation results. |
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| Description: | Online veröffentlicht: 18. März 2026 Gesehen am 16.06.2026 Topical Workshop on Electronics for Particle Physics, Rethymno, Crete, Greece, 6-10 October 2025 |
| Description matérielle: | Online Resource |
| ISSN: | 1748-0221 |
| DOI: | 10.1088/1748-0221/21/03/C03027 |