In:
Journal of Instrumentation, IOP Publishing, Vol. 17, No. 07 ( 2022-07-01), p. P07019-
Abstract:
A Cosmic Muon Veto (CMV) detector using extruded plastic
scintillators is being designed around the mini-Iron Calorimeter (mini-ICAL) detector at the transit campus of the India based
Neutrino Observatory, Madurai for the feasibility study of shallow depth underground experiments. The scintillation signals that are
produced in the plastic due to muon trajectories are absorbed by wavelength shifting (WLS) fibres. The WLS fibres re-emit photons of
longer wavelengths and propagate those to silicon photo-multipliers (SiPMs). The SiPMs detect these photons, producing electronic
signals. The CMV detector will use more than 700 scintillators to cover the mini-ICAL detector and will require around 3000 SiPMs. The
design goal for the cosmic muon veto efficiency of the CMV is 〉 99.99%. Hence, every SiPM used in the detector needs to be
tested and characterised to satisfy the design goal of CMV. A mass testing system was developed for the measurement of gain and choice
of the overvoltage ( V ov ) of each SiPMs using an LED
driver. The V ov is obtained by studying the noise rate,
the gain of the SiPM. This paper describes the experimental setup used to test the SiPMs characteristics along with detailed studies
of those characteristics as a function of temperature.
Type of Medium:
Online Resource
ISSN:
1748-0221
DOI:
10.1088/1748-0221/17/07/P07019
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2022
detail.hit.zdb_id:
2235672-1
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