Proceedings of the Japan Academy, Series B
Online ISSN : 1349-2896
Print ISSN : 0386-2208
Original Papers
Probing the inner structure of blast furnaces by cosmic-ray muon radiography
Kanetada NAGAMINEHiroyuki K. M. TANAKASatoshi N. NAKAMURAKatsuhiko ISHIDAMisao HASHIMOTOAkihiko SHINOTAKEMasaaki NAITOAsao HATANAKA
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2005 年 81 巻 7 号 p. 257-260

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By using the detection system of the near-horizontal cosmic-ray radiography originally developed for probing inner structure of volcanic mountains, a measurement was conducted to probe the inner structure and its time-dependent change of the blast furnace for iron-making. Precise determination (±5 cm) of the thickness of brick used for both base-plate and side-wall was made in 45 days; a crucial information to predict a life-time of the furnace. Also, the local density of iron-rich part was determined in ±0.2 g/cm2 in 45 days; static structure as well as time-dependent behavior can be monitored for the iron-rich part of the furnace during operation.


(Communicated by Kazuhiko NISHIJIMA, M.J.A.)

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© 2005 The Japan Academy
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