A Caltech Library Service

Construction status of the Mu2e crystal calorimeter

Atanov, N. and Baranov, V. and Bloise, C. and Budagov, J. and Cervelli, F. and Colao, F. and Cordelli, M. and Corradi, M. and Davydov, Yu. I. and Di Falco, S. and Diociaiuti, E. and Donati, S. and Donghia, R. and Echenard, B. and Ferrari, C. and Giovannella, S. and Glagolev, V. and Grancagnolo, F. and Hampai, D. and Happacher, F. and Hitlin, D. and Marini, A. and Martini, M. and Miscetti, S. and Miyashita, T. and Morescalchi, L. and Murat, P. and Pasciuto, D. and Pedreschi, E. and Pezzullo, G. and Porter, F. and Raffaelli, F. and Saputi, A. and Sarra, I. and Spinella, F. and Tassielli, G. F. and Tereshchenko, V. and Usubov, Z. and Vasilyev, I. I. and Zanetti, A. and Zhu, R. Y. (2020) Construction status of the Mu2e crystal calorimeter. Journal of Instrumentation, 15 (9). Art. No. C09035. ISSN 1748-0221. doi:10.1088/1748-0221/15/09/c09035.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


The Mu2e experiment at Fermilab will search for the charged-lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The Mu2e detector is composed of a tracker, an electromagnetic calorimeter and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities and a fast online trigger filter, while aiding the track reconstruction capabilities. Calorimeter requirements are to provide a large acceptance for 0~10 MeV electrons and reach: i) a time resolution better than 0.5 ns; ii) an energy resolution better than 10%; and iii) a position resolution of 1 cm. The calorimeter consists of two disks, each one made of 674 pure CsI crystals. Each crystal is readout by two large area 2×3 arrays of UV-extended SiPMs of 6×6 mm² dimensions. A large scale prototype (Module-0) has been tested at an electron beam. We report here the tests done to finalize the calorimeter design, the results obtained with Module-0 and the status of production. At this time, the performance characteristics of 85% of the crystals and all of the SiPMs have been measured. The calorimeter engineering drawings have been completed and the large mechanical components are under fabrication. Analog and digital electronics have been prototyped and tested with irradiation dose. Their serial production is being organized. The calorimeter assembly phase is planned for mid-2020.

Item Type:Article
Related URLs:
URLURL TypeDescription
Hitlin, D.0000-0003-4028-6982
Porter, F.0000-0003-1948-8889
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© 2020 IOP Publishing Ltd and Sissa Medialab. Received 15 May 2020; Accepted 10 June 2020; Published 11 September 2020.
Issue or Number:9
Record Number:CaltechAUTHORS:20201103-120718403
Persistent URL:
Official Citation:N. Atanov et al 2020 JINST 15 C09035
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106394
Deposited By: Tony Diaz
Deposited On:04 Nov 2020 18:59
Last Modified:12 Jul 2022 19:47

Repository Staff Only: item control page