Silica aerogel Cherenkov counter for the KEK B-factory experiment

T. Sumiyoshi, I. Adachi, R. Enomoto, T. Iijima, R. Suda, C. Leonidopoulos, D. R. Marlow, E. Prebys, R. Kawabata, H. Kawai, T. Ooba, M. Nanao, K. Suzuki, S. Ogawa, A. Murakami, M. H.R. Khan

Research output: Contribution to journalConference articlepeer-review

65 Scopus citations


Low-refractive-index silica aerogel is a convenient radiator for threshold-type Cherenkov counters, which are used for particle identification in high-energy physics experiments. For the BELLE detector at the KEK B-Factory we have produced about 2 m3 of hydrophobic silica aerogels of n = 1.01-1.03 using a new production method. The particle identification capability of the aerogel Cherenkov counters was tested and 3σ pion/proton separation has been achieved at 3.5 GeV/c. Radiation hardness of the aerogels was confirmed up to 9.8 Mrad. The Aerogel Cherenkov counter system (ACC) was successfully installed in the BELLE just before this conference.

Original languageEnglish (US)
Pages (from-to)385-391
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Aug 21 1999
EventProceedings of the 1998 3rd International Workshop on Ring Imaging Cherenkov Detectors (RICH98) - Dead Sea, Isr
Duration: Nov 15 1998Nov 20 1998

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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