山梨医科大学紀要 第5巻，055-061(1988)
Cosmic Ray Radiography
Masahiro KODAMA and Susumu MINATO
On the analogy of X-ray or gamma-ray radiography, it is shown that cosmic radiations are applicable to non-destructive estimations of various environment materials closely concerned with human life. Two ways of approach are introduced with respect to spatial and temporal characteristics of the materials. One is a continuous measurement of cosmic ray neutrons above and below the ground level, which plays an important role as a remote sensing of day-to-day variations of water equivalent depth of snow cover or soil moisture content. Another one is based on spatial distribution of cosmic ray muon fluxes against the different many sites under a soild construction. This provides a bulk density distribution of the underground construction such as a subway tunnel. We call these techniques 'cosmic ray radiography'.
Key words: Cosmic ray, Radiography, Non-destructive examination
本文ページです。見たいページをクリックして下さい。（解像度が低いため、鮮明な画像が必要な場合は原本をご参照下さい）
p. 55
p. 56
p. 57
p. 58
p. 59
p. 60
p. 61
目次・Contentsに戻る
p. 56
p. 57
p. 58
p. 59
p. 61