Charged-particle-induced luminescence of Sr14A1 14O25:Eu2+,Dy3+

K. Toh, K. Sakasai, T. Nakamura, K. Soyama, T. Shikama, S. Nagata, B. Tsuchiya

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

Abstract

Fuorescence and long-lasting emission properties of Sr4Al 14O25:Eu2+,Dy3+ are examined It by irradiating by protons and helium and oxygen particles. Fluorescence spectra exhibit three strong peaks at 400, 480, and 570 nm. The first two peaks are attributed to the luminescence of Eu2+, and they confirm the long-lasting emission property. The peak at 570 nm is attributed to the luminescence of Dy3+; Dy3+ exhibits no luminescence after the cessation of the irradiation. Radiation damages show activator dependence, and Eu is more sensitive to incident particles than Dy is. The radiation damages also show incident particle dependence, and the magnitude of damage is related to the electronic and nuclear energy transfers of the particles. Long-lasting emission is observed after the cessation of irradiation by proton and helium, and the decay time of the emission is different for different incident particles.

Original languageEnglish
Title of host publication2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
Pages1177-1180
Number of pages4
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 - Dresden, Germany
Duration: 2008 Oct 192008 Oct 25

Publication series

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

Other

Other2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
CountryGermany
CityDresden
Period08/10/1908/10/25

Keywords

  • Ion radiation effects
  • Long-lasting phosphors
  • Luminescence
  • Scintillation detectors

ASJC Scopus subject areas

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

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