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Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear Emulsion Techniques － Modern techniques of nuclear emulsion and their

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Page 1: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers

Hiroyuki TanakaERIUniversity of Tokyo

The 3rd International Workshop on Nuclear Emulsion Techniques 　－ Modern techniques of nuclear emulsion and their applications －

Page 2: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Principle

muon

Page 3: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Why Muon?

pg

electron

proton

muon

Page 4: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

electron

muon

proton

Page 5: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear
Page 6: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear
Page 7: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Why ECC?

Page 8: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear
Page 9: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Why Radiography?

Seismic Magnetoteluric

GeodeticGravimetric

Page 10: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Type of Volcano

VulcanianMt. Asama

DomeMt. Usu

Page 11: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Mt. Asama

Mt. Asama

Page 12: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Result in Asama

ECC Muon Detector

Page 13: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Mt. Usu

Mt. Usu

Page 14: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Result in Usu

Page 15: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Geodetic Model of Usu

Page 16: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Yokoyama 2002

Page 17: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Other type of volcanoes

Strombolian Satsuma Iwojima

convection

degassing

Gas of 16000 t/day

Page 18: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Satsuma Iwojima (future observation)

ECC

Page 19: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Future Prospects

３ d tomography

real time monitoring faster scanning system

ECC

ECC

Page 20: Cosmic-ray muon radiography of volcanoes with emulsion cloud chambers Hiroyuki Tanaka ERI University of Tokyo The 3rd International Workshop on Nuclear

Summary

Portable Power free Simple High resolution

Acknowledgements:K. Niwa, T. Nakano, S. Takahashi, J. Yoshida, Nagoya UniversityUniversity of TokyoHokkaido University


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