Radiation hardness of undoped BGO crystals

S. K. Sahu, K. C. Peng, H. C. Huang, C. H. Wang, Y. H. Chang, W. S. Hou, K. Ueno, F. I. Chou, Y. Y. Wei

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


We measured the radiation hardness of undoped BGO crystals from two different manufacturers. Such crystals are proposed to be used in a small-angle calorimeter of the BELLE detector of the KEK B-factory. Transparency and scintillation light output of the crystals were monitored to see the effect of radiation damage. The crystals show considerable radiation hardness up to 10.2 Mrad equivalent dose, which is much higher than the maximum expected dosage of 500 krad per year of running at BELLE.

Original languageEnglish
Pages (from-to)144-148
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
StatePublished - 21 Mar 1997


  • BGO
  • Calorimeter
  • Radiation damage
  • Radiation hardness
  • Undoped


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