Investigations of optical and scintillation properties of Tm 3+-doped YAlO3

D. Totsuka, T. Yanagida, M. Sugiyama, Y. Fujimoto, Y. Yokota, A. Yoshikawa

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

1 Citation (Scopus)

Abstract

Pure, 0.1, 0.5 and 1 mol% Tm-doped YAP single crystalline scintillators were grown by the μ-PD method. Lattice constants were gradually decreased with Tm concentration in XRD analysis. In transmittance measurement, absorption bands due to Tm3+ 4f-4f transitions were observed at 265, 360, 485, 690 and 800 nm and they were ascribed to the transition from the 3H6 ground state to its excited states, 1I 6, 1D2, 1G4, 3F3 and 3H4, respectively. Strong emission peak due to 1I6-3F4 transition of Tm3+ was shown at 350 nm under X-ray irradiation. Photoluminescence decay time constants caused by this transition were evaluated to be from 15.3 to 17.3 μs and the scintillation decay time constants under gamma-ray excitation were estimated to be from 17.5 to 18.8 μs. Tm 1% doped one exhibited the highest light yield of 15100 ± 1500 photons/MeV when excited by 137Cs gamma-ray irradiation.

Original languageEnglish
Title of host publication2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1551-1555
Number of pages5
ISBN (Print)9781467301183
DOIs
Publication statusPublished - 2011 Jan 1
Event2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
Duration: 2011 Oct 232011 Oct 29

Publication series

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

Other

Other2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Country/TerritorySpain
CityValencia
Period11/10/2311/10/29

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Investigations of optical and scintillation properties of Tm <sup>3+</sup>-doped YAlO<sub>3</sub>'. Together they form a unique fingerprint.

Cite this