Atanov, N. and Echenard, B. and Hitlin, D. G. and Hui, C. and Miyashita, T. and Porter, F. and Zhang, L. and Zhu, R.-Y. (2018) Quality Assurance on Un-Doped CsI Crystals for the Mu2e Experiment. IEEE Transactions on Nuclear Science, 65 (2). pp. 752-757. ISSN 0018-9499. doi:10.1109/TNS.2017.2786081. https://resolver.caltech.edu/CaltechAUTHORS:20180103-151515854
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Abstract
The Mu2e experiment is constructing a calorimeter consisting of 1348 undoped cesium iodide (CsI) crystals in two disks. Each crystal has a dimension of 34×34×200 mm^3 and is readout by a large-area silicon photomultipliers array. A series of technical specifications on mechanical and optical parameters was defined according to the calorimeter physics requirements. Preproduction CsI crystals were procured from three firms: Amcrys, Saint-Gobain, and Shanghai Institute of Ceramics. We report the quality assurance on crystal’s scintillation properties and their radiation hardness against ionization dose and neutrons. With a fast decay time of about 30 ns and a light output of more than 100 p.e./MeV measured by a bialkali photomultiplier tube, undoped CsI crystals provide a cost-effective solution for Mu2e.
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| Additional Information: | © 2017 IEEE. Manuscript received October 15, 2017; revised December 13, 2017; accepted December 19, 2017. Date of publication December 21, 2017; date of current version February 13, 2018. This work was supported in part by the U.S. Department of Energy through the Office of High Energy Physics program under Award DE-SC0011925, in part by the US Department of Energy, in part by the Italian Istituto Nazionale di Fisica Nucleare, in part by the US National Science Foundation, in part by the Ministry of Education and Science of the Russian Federation, in part by the Thousand Talents Plan of China, in part by the Helmholtz Association of Germany, and in part by the EU Horizon 2020 Research and Innovation Program under the Marie Sklodowska-Curie Grant Agreement 690385. The authors would like to thank the Staff at the Fermilab, Batavia, IL, USA, for the vital contributions and the Technical Staff of the participating institutions. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359. | ||||||||||||||||||
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| Subject Keywords: | Crystal, cesium iodide (CsI), energy resolution, fast total ratio, light output, light response uniformity, radiation hardness, radiation-induced noise | ||||||||||||||||||
| Issue or Number: | 2 | ||||||||||||||||||
| DOI: | 10.1109/TNS.2017.2786081 | ||||||||||||||||||
| Record Number: | CaltechAUTHORS:20180103-151515854 | ||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180103-151515854 | ||||||||||||||||||
| Official Citation: | N. Atanov et al., "Quality Assurance on Undoped CsI Crystals for the Mu2e Experiment," in IEEE Transactions on Nuclear Science, vol. 65, no. 2, pp. 752-757, Feb. 2018. doi: 10.1109/TNS.2017.2786081 | ||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||
| ID Code: | 84070 | ||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||
| Deposited On: | 03 Jan 2018 23:31 | ||||||||||||||||||
| Last Modified: | 15 Nov 2021 20:16 |
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