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Journal of the Korean Physical Society

, Volume 75, Issue 9, pp 672–677 | Cite as

Non-Proportionality Electron Response and Energy Resolution of LaBr3:Ce and LuYAP:Ce Scintillating Crystals

  • Kittisak Sriwongsa
  • Pruittipol LimkitjaroenpornEmail author
  • Wiraporn Hongtong
  • Wuttichai Chaiphaksa
  • Jakrapong KaewkhaoEmail author
  • Hong Joo Kim
Article
  • 14 Downloads

Abstract

The present research work focuses on a comparative study of the non-proportionality of the electron response and the electron energy resolution for LaBr3:Ce and LuYAP:Ce scintillating crystals in the energy range from 97.8 keV to 437.0 keV by using the Compton coincidence technique (CCT). The results reveal that the LaBr3:Ce crystal shows the higher yield than the LuYAP:Ce crystal. Non-proportional electron responses at 97.8 keV were 6% higher and 2% lower for the LaBr3:Ce and the LuYAP crystals, respectively. The percentage proportionality of the electron response decreases with increasing electron energy. The proportionality of the electron response has higher values at energies beyond 374.5 keV for the LaBr3:Ce crystal and 260.4 keV for the LuYAP:Ce crystal. The electron energy resolution of the LaBr3:Ce crystal is better than that of the LuYAP:Ce crystal in the energy range from 97.8 keV to 437.0 keV. However, at low electron energy the resolutions of the electron responses for both scintillating crystal show similar values. Both the LaBr3:Ce and the LuYAP scintillating crystals show electron energy resolutions proportional to 1/√E.

Keywords

Electron energy resolution Non-proportional electron response Compton coincidence technique 

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Notes

Acknowledgments

The authors would like to thank Nakhon Pathom Rajabhat University (NPRU) and the National Research Council of Thailand (NRCT) for supporting this research.

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Copyright information

© The Korean Physical Society 2019

Authors and Affiliations

  • Kittisak Sriwongsa
    • 1
    • 3
  • Pruittipol Limkitjaroenporn
    • 1
    • 3
    Email author
  • Wiraporn Hongtong
    • 1
    • 3
  • Wuttichai Chaiphaksa
    • 1
    • 3
  • Jakrapong Kaewkhao
    • 1
    • 3
    Email author
  • Hong Joo Kim
    • 2
  1. 1.Physics Program, Faculty of Science and TechnologyNakhon Pathom Rajabhat UniversityNakhon PathomThailand
  2. 2.Centre of Excellence in Glass Technology and Materials Science (CEGM)Nakhon Pathom Rajabhat UniversityNakhon PathomThailand
  3. 3.Department of PhysicsKyungpook National UniversityDaeguKorea

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