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Title: Aerial Survey Results for 131I Deposition on the Ground after the Fukushima Daiichi Nuclear Power Plant Accident

In March 2011 the second largest accidental release of radioactivity in history occurred at the Fukushima Daiichi nuclear power plant following a magnitude 9.0 earthquake and subsequent tsunami. Teams from the U.S. Department of Energy, National Nuclear Security Administration Office of Emergency Response performed aerial surveys to provide initial maps of the dispersal of radioactive material in Japan. The initial results from the surveys did not report the concentration of 131I. This work reports on analyses performed on the initial survey data by a joint Japan-US collaboration to determine 131I ground concentration. This information is potentially useful in reconstruction of the inhalation and external exposure doses from this short-lived radionuclide. The deposited concentration of 134Cs is also reported.
 [1] ;  [1] ;  [2] ;  [2] ;  [3]
  1. JAEA
  2. NSTec
  3. NNSA
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0017--9078
DOE Contract Number:
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Resource Relation:
Journal Name: Health Physics; Journal Volume: 105; Journal Issue: 2; Conference: National Academy of Sciences of the United States of America
Research Org:
Nevada Test Site/National Security Technologies, LLC (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Emergency Operations (NA-40)
Country of Publication:
United States
Fukushima, I-131, aerial survey