What is the origin of ^<137>Cs detected in under-floor soil samples of houses built in 1-3 years after the Hiroshima atomic bomb ?

IPSHU English Research Report Series Issue 28 Page 37-44 published_at 2012-03
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Title ( eng )
What is the origin of ^<137>Cs detected in under-floor soil samples of houses built in 1-3 years after the Hiroshima atomic bomb ?
Creator
Yamamoto Masayoshi
Sakaguchi Aya
Hoshi Masaharu
Imanaka Tetsuji
Miyamoto Yutaka
Source Title
IPSHU English Research Report Series
Issue 28
Start Page 37
End Page 44
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.
NDC
Peace Science [ 319 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
広島大学平和科学研究センター
Date of Issued 2012-03
Rights
Copyright (c) 2012 Institute for Peace Science, Hiroshima University
Publish Type Version of Record
Access Rights open access
Source Identifier
[NCID] AA10456537