Nd-doped Lu3Al5O12 single-crystal scintillator for X-ray imaging

Makoto Sugiyama, Yutaka Fujimoto, Takayuki Yanagida, Daisuke Totsuka, Valery Chani, Yuui Yokota, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The optical and scintillation properties of Nd-doped Lu3Al 5O12 (Nd:LuAG) crystals grown by the Czochralski (Cz) method were examined under X-ray excitation. Their applicability for X-ray imaging was also inspected. The radioluminescence spectrum induced by X-rays showed a broad host emission and sharp Nd3+ 4f-4f emission peaks in the UV to visible wavelengths. The light output current of the Nd:LuAG was 85% of that of a standard CdWO4 X-ray scintillator. The afterglow value measured 20 ms after X-ray irradiation was 1.5%. An X-ray radiographic image was successfully obtained using the Nd:LuAG scintillator coupled with the charge coupled device (CCD) photodetector.

Original languageEnglish
Pages (from-to)103-107
Number of pages5
JournalRadiation Measurements
Volume55
DOIs
Publication statusPublished - 2013 Aug

Keywords

  • 4f-4f transition
  • Nd:LuAG scintillator
  • X-ray imaging detector

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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