Development of a two-fold segmented detection system for near horizontally cosmic-ray muons to probe the internal structure of a volcano

H. Tanaka, K. Nagamine, N. Kawamura, S. N. Nakamura, K. Ishida, K. Shimomura

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Very high-energy cosmic-ray muons penetrating through a mountain enable us to probe internal structure of volcanoes. An improved cosmic-ray muon detection system comprising two segmented detectors with multiplicity cut of the soft-component background of cosmic ray was developed. By applying to the measurement on internal structure of the volcano Mt. Asama, we proved that the volume occupancy in the region of a crater is less than 30%.

Original languageEnglish
Pages (from-to)657-669
Number of pages13
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume507
Issue number3
DOIs
Publication statusPublished - 2003 Jul 21

Keywords

  • Cosmic-ray muon
  • Multiplicity-cut analysis
  • Segmented detection system

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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