Applications of cerium-doped gadolinium silicate Gd2SiO5:Ce scintillator to calorimeters in high-radiation environment

M. Tanaka, K. Hara, S. Kim, K. Kondo, H. Takano, M. Kobayashi, H. Ishibashi, K. Kurashige, K. Susa, M. Ishii

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We have investigated applications of cerium-doped GSO (Gd2SiO5: Ce or GSO: Ce) scintillating crystals to high-precision electromagnetic calorimeters in high-energy physics experiments. Basic properties of GSO : Ce such as the decay time, light yield and radiation hardness were measured using small (∼4 cm long) sample crystals. The radiation hardness tests include the scintillator stability under 60Co exposure. The characteristics of the observed residual phosphorescence due to radiation were studied in detail. These properties are dependent on the Ce concentration. Between the two concentrations we tested, 0.5 and 1.5 mol%, GSO:Ce scintillator with 1.5 mol% Ce is better in various aspects. Recently, large ingots with 1.5mol% Ce concentration have been grown successfully. We report optical properties of 2.5 × 2.5 × 26 cm3 crystals. We discuss the feasibility of GSO : Ce scintillator-based calorimeters in operating under high radiation such as at future hadron collider experiments.

Original languageEnglish
Pages (from-to)283-294
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume404
Issue number2-3
DOIs
Publication statusPublished - 1998
Externally publishedYes

Keywords

  • Crystal scintillator
  • GSO
  • Radiation hardness
  • Thermoluminescence

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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