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Mass testing of SiPMs for the CMVD at IICHEP
by Mamta Jangra, Raj Bhupen, Gobinda Majumder, Kiran Gothe, Mandar Saraf, Nandkishor Parmar, B. Satyanarayana, R. R. Shinde, Shobha K. Rao, Suresh S Upadhya, Vivek M Datar, Douglas A. Glenzinski, Alan Bross, Anna Pla-Dalmau, Vishnu V. Zutshi, Robert Craig Group, E Craig Dukes
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Submission summary
| Authors (as registered SciPost users): | Mamta Jangra |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2208.11446v3 (pdf) |
| Date accepted: | 2022-12-02 |
| Date submitted: | 2022-10-25 06:21 |
| Submitted by: | Jangra, Mamta |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 21st International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI2022) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
A Cosmic Muon Veto Detector (CMVD) is being built around the mini-Iron Calorimeter (mini-ICAL) detector at the transit campus of the India based Neutrino Observatory, Madurai. The CMV detector will be made using extruded plastic scintillators with embedded wavelength shifting (WLS) fibres which propagate re-emitted photons of longer wavelengths to silicon photo-multipliers (SiPMs). The SiPMs detect these scintillation photons, producing electronic signals. The design goal for the cosmic muon veto efficiency of the CMV is $>$99.99\% and fake veto rate less than 10$^{-5}$. A testing system was developed, using an LED driver, to measure the noise rate and gain of each SiPM, and thus determine its overvoltage ($V_{ov}$). This paper describes the test results and the analysed characteristics of about 3.5k SiPMs.
Author comments upon resubmission
Thank you for the valuable comments.
Sincere regards
Mamta Jangra
List of changes
1) Can you highlight that all your measurement were done at a constant temperature/room temperature? You do mention it in the caption of Fig. 6(b); however, it would be useful to highlight this earlier as well.
- The following suggestion has been implemented.
2) You have used wording 'Vth' in the conclusion to indicate breakdown voltage as well as over-voltage? Use consistent terminology and define Vth before using.
- Corrected as suggested.
Published as SciPost Phys. Proc. 13, 025 (2023)