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ID 33623
file
creator
Yamamoto, Masayoshi
Sakaguchi, Aya
Hoshi, Masaharu
Imanaka, Tetsuji
Miyamoto, Yutaka
NDC
Peace Science
abstract
Since 2008, we have measured 137Cs and 239,240Pu isotopes in about 60 soil samples from the under-floor of 20 houses built within 1-3 years after 1945, in order to evaluate the close-in fallout deposition due to the "Black rain" at the time of Hiroshima atomic explosion. 239,240Pu was used as indicator to evaluate the contamination from global fallout 137Cs other than Hiroshima A-bomb derived 137Cs.

As a result, it seems likely that 137Cs deposition at that time due to the Hiroshima A-bomb is 50-100 Bq/m2.
journal title
IPSHU English Research Report Series
issue
Issue 28
start page
37
end page
44
date of issued
2012-03
publisher
広島大学平和科学研究センター
ncid
SelfDOI
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2012 Institute for Peace Science, Hiroshima University
department
Institute for Peace Science
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