Czochralski growth of 8 inch size BaF 2 single crystal for a fast scintillator

Kei Kamada, Teruhiko Nawata, Yoji Inui, Hiroyuki Yanagi, Hiroki Sato, Akira Yoshikawa, Martin Nikl, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this work we optimize the growth condition of 8 inch size BaF 2 single crystal which could be grown by the Czochralski (Cz) method with the resistive heating system and thermal insulators. Grown crystals were colorless transparent with 205 mm in diameter, 90 mm in length. The variation of the birefringence in the radial direction was 8.7 nm/cm. Grown BaF 2 single crystals show good transmittance (>80%) over 200 nm wavelength and super fast decay time of 0.60-0.63 ns. These characteristics indicate the high potential of 8-in. size BaF2 single crystal grown by the Cz method for TOF-PET.

Original languageEnglish
Pages (from-to)159-162
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume537
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Jan 21

Keywords

  • Fluoride
  • Luminescence
  • Scintillator
  • Single crystal

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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