Pezzullo, G. (2015) Photosensor test station for theMu2e electromagnetic calorimeter. Il nuovo cimento C, 38 (2). pp. 1-10. ISSN 1826-9885
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Abstract
The Mu2e experiment searches for coherent, neutrinoless conversion of muons into electrons in the field of a nucleus. The Mu2e measurement will have a sensitivity of fews parts in 10−17, with an improvement of a factor of 103–104 with respect to the existing limits. The Mu2e apparatus takes advantage of the high intensity muon beam which hits muon stopping targets, and uses a detector composed of a low-mass straw tubes tracker and an electromagnetic calorimeter. The calorimeter is made of 1860 hexagonal crystals read out by two large area photosensors, for a total of 3720 channels. Two options of photosensors are currently under study: large-area Avalanche Photo Diodes (APDs) and Silicon Photo Multipliers (SiPMs). A photosensor test station has been developed in Pisa, in collaboration with the LNF Mu2e group, in order to validate the photosensors performance. In particular the following characteristics are carefully studied: gain vs. bias voltage, gain vs. temperature, gain vs. light source position and dark current characterization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Calorimeters ; Other topics in elementary-particle and nuclear physics experimental methods and instrumentation |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 May 2020 15:35 |
| Last Modified: | 27 May 2020 15:35 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19041 |
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