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La and La/Ce Doped BaF_2 Crystals for Future HEP Experiments at the Energy and Intensity Frontiers Part II

Yang, Fan and Chen, Junfeng and Zhang, Liyuan and Hu, Chen and Zhu, Ren-Yuan (2019) La and La/Ce Doped BaF_2 Crystals for Future HEP Experiments at the Energy and Intensity Frontiers Part II. IEEE Transactions on Nuclear Science, 66 (1). pp. 512-518. ISSN 0018-9499. https://resolver.caltech.edu/CaltechAUTHORS:20181207-083715563

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Abstract

In addition to La-doped barium fluoride (BaF_2) crystals, La/Ce co-doped BaF_2 crystals were also investigated at the California Institute of Technology, Pasadena, CA, USA. Strong cerium-induced emissions peaked at 305 and 320 nm with a decay time of 25 ns were observed, in addition to the fast and slow scintillation at 220 and 300 nm, respectively. The La/Ce co-doping was also found effective in suppressing the slow component in BaF_2. Compared to La-doped crystals, the La/Ce co-doped crystals have a better light output in both 50- and 2500-ns gate. The fast/slow ratio of La/Ce co-doped crystal was found to be about 1/1, similar to La-doping, which is also considered not sufficient for pile-up suppression. A 20-cm-long La/Ce co-doped BaF_2 crystal shows also excellent optical quality and light response uniformity.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/tns.2018.2884975DOIArticle
ORCID:
AuthorORCID
Chen, Junfeng0000-0003-3863-3324
Hu, Chen0000-0002-3285-4831
Zhu, Ren-Yuan0000-0003-3091-7461
Alternate Title:La and La/Ce Doped BaF2 Crystals for Future HEP Experiments at the Energy and Intensity Frontiers Part II
Additional Information:© 2018 IEEE. Manuscript received August 31, 2018; revised October 29, 2018; accepted November 30, 2018. Date of publication December 5, 2018; date of current version January 17, 2019. This work was supported in part by the U.S. Department of Energy, Office of High Energy Physics Program under Award DE-SC0011925, in part by the Fundamental Research Funds for the Central Universities of China, in part by the Natural Science Funds of Tianjin under Grant 18JCYBJC17800, and in part by the Natural Science Funds of China under Grant 51402332 and Grant 11775120.
Group:CMS@Caltech
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011925
Fundamental Research Funds for the Central Universities of ChinaUNSPECIFIED
Natural Science Funds of Tianjin18JCYBJC17800
National Natural Science Foundation of China51402332
National Natural Science Foundation of China11775120
Subject Keywords:Barium fluoride, Rare earth doping, Slow scintillation component suppression
Issue or Number:1
Record Number:CaltechAUTHORS:20181207-083715563
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20181207-083715563
Official Citation:F. Yang, J. Chen, L. Zhang, C. Hu and R. Zhu, "La- and La-/Ce-Doped BaF2 Crystals for Future HEP Experiments at the Energy and Intensity Frontiers Part II," in IEEE Transactions on Nuclear Science, vol. 66, no. 1, pp. 512-518, Jan. 2019. doi: 10.1109/TNS.2018.2884975
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91547
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Dec 2018 21:42
Last Modified:03 Oct 2019 20:36

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