A beam test of PbWO4 Cherenkov radiators

M. Kobayashi, S. Sugimoto, Y. Yoshimura, T. K. Komatsubara, K. Mimori, K. Omata, T. Sekiguchi, T. Tsunemi, T. Yoshioka, Y. Tamagawa, H. Shirasaka, T. Fujiwara, Y. Usuki, M. Ishii

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23 Citations (Scopus)


PbWO4 heavily doped with trivalent rare-earth ions like La3+, Gd3+, Y3+, etc. has recently been proposed as an excellent new, heavy and radiation-hard Cherenkov radiator, and the upper limit of the remaining scintillation light yield (LY) was obtained from measurement of radioisotope γ-rays. Since then, we have made a quantitative study of the remaining scintillation LY using a 0.5-1 GeV/c π+/p/d beam. Compared with a standard PbWO4:Gd(80atppm) scintillator, the scintillation LY is quenched to 4.8%, 6.0%, and 11.6% for La3+ concentration of 8 at%, La3+ of 5 at% and Gd3+ of 3 at%, respectively. The scintillation LY remaining in PbWO4:La(8at%) was as weak as 15% of the Cherenkov LY for relativistic charged particles.

Original languageEnglish
Pages (from-to)140-148
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - May 21 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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