Scintillation properties of Ce3+-doped, Pr3+-doped calcium orthoborate

Y. Fujimoto, T. Yanagida, Y. Yokota, N. Kawaguchi, K. Fukuda, D. Totsuka, K. Watanabe, A. Yamazaki, A. Yoshikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To develop new scintillators for thermal neutron detection, we investigated optical and scintillation properties of Ce3-doped, Pr 3-doped Ca3(BO3)2 single crystals grown by the micro-pulling down (-PD) method. In optical transmission spectra, the absorption was observed around 275 and 345 nm correspond to the transition from the 4f ground state levels 2F5/2, 2F 7/2 to 5d excited state of Ce3 and Pr3 transition from the ground state 3H to 5d state around 210-245 nm, respectively. The radioluminescence spectra showed intense peak around 400 nm (Ce3:CBO) and 260-310 nm (Pr3: CBO) under 241Am 5.5 MeV -ray excitation due to the 5d-4f transition. The relative scintillation light yield of 0.5 % Ce3: CBO crystal showed about 30 %, while that of 0.5 % Pr3: CBO crystal showed about 10 % compared with that of reference Li-glass (GS20) scintillator under 252Cf neutron irradiation.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010
Pages192-194
Number of pages3
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 - Knoxville, TN, United States
Duration: 2010 Oct 302010 Nov 6

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
Country/TerritoryUnited States
CityKnoxville, TN
Period10/10/3010/11/6

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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