New intrinsic scintillator with large effective atomic number: Tl2HfCl6 and Tl2ZrCl6 crystals for x-ray and gamma-ray detections

Yutaka Fujimoto, Keiichiro Saeki, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, Keisuke Asai

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We report on the photoluminescence and scintillation characterizations of new Tl2HfCl6 and Tl2ZrCl6 crystalline scintillators grown by the vertical Bridgman-Stockbarger method. Both Tl2HfCl6 and Tl2ZrCl6 crystals showed an intrinsic emission band peak at 450-470 nm under UV light and X-ray excitations. The scintillation light yields of Tl2HfCl6 and Tl2ZrCl6 reach 24200 and 50800 photons/MeV, respectively. Their energy resolutions at 662 keV are 17.7% for Tl2HfCl6 and 5.6% for Tl2ZrCl6. The scintillation decay time values of Tl2HfCl6 are 288 and 6340 ns; meanwhile, those of Tl2ZrCl6 are 696 and 2360 ns.

Original languageEnglish
Pages (from-to)1577-1583
Number of pages7
JournalSensors and Materials
Volume30
Issue number7
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Crystal growth
  • Scintillator
  • TlHfCl
  • TlZrCl

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

Fingerprint Dive into the research topics of 'New intrinsic scintillator with large effective atomic number: Tl<sub>2</sub>HfCl<sub>6</sub> and Tl<sub>2</sub>ZrCl<sub>6</sub> crystals for x-ray and gamma-ray detections'. Together they form a unique fingerprint.

  • Cite this