Development of an emulsion imaging system for cosmic-ray muon radiography to explore the internal structure of a volcano, Mt. Asama

H. K.M. Tanaka, T. Nakano, S. Takahashi, J. Yoshida, K. Niwa

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

A simple particle detection system comprising an emulsion cloud chamber was developed as a potential apparatus for cosmic-ray muon radiography of a volcano. A successful radiographic measurement of the internal structure of Mt. Kama-yama through Mt. Maekake-yama is described. We analyzed the data and the bulk density of 2.25 ±0 . 040 . 06 g cm-3 was determined in Kama-yama. Using the value of the density of the mountain, we confirmed that the volume occupancy in the shallow region of a crater (at a place between the crater rim and 100 m below the rim) is 8 . 1- 8.1+ 45.9%. We discuss the future perspective of the power-free radiographic imaging device for understanding and monitoring volcanic activity.

Original languageEnglish
Pages (from-to)489-497
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume575
Issue number3
DOIs
Publication statusPublished - 2007 Jun 1
Externally publishedYes

Keywords

  • Cosmic-ray muon
  • Emulsion cloud chamber
  • Radiography
  • Volcano

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint Dive into the research topics of 'Development of an emulsion imaging system for cosmic-ray muon radiography to explore the internal structure of a volcano, Mt. Asama'. Together they form a unique fingerprint.

  • Cite this