Crystals (Apr 2022)

Properties of Sm-Doped SrCl<sub>2</sub> Crystalline Scintillators

  • Daisuke Nakauchi,
  • Yutaka Fujimoto,
  • Takumi Kato,
  • Noriaki Kawaguchi,
  • Takayuki Yanagida

DOI
https://doi.org/10.3390/cryst12040517
Journal volume & issue
Vol. 12, no. 4
p. 517

Abstract

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Sm-doped SrCl2 crystals were prepared, and the scintillation properties such as emission spectra, decay profiles, and pulse height were investigated. Under X-ray irradiation, a broad band can be observed at 680 nm, which indicates that the major origin is due to 5d-4f transitions of Sm2+. The decay curve is approximated by one exponential function with a decay time of 10 μs, and the decay time constant is typical for Sm2+. From the pulse height of 137Cs γ-rays, 0.1% Sm:SrCl2 shows a light yield of 33,000 photons/MeV.

Keywords