Accession Number : ADA590129


Title :   Radiation Internal Monitoring by In Vivo Scanning in Operation Tomodachi


Descriptive Note : Final rept.


Corporate Author : UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES BETHESDA MD


Personal Author(s) : Cassata, James ; McKenzie-Carter, Michael ; Case, David ; Chehata, Mondher ; Falo, Gerald


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a590129.pdf


Report Date : Aug 2013


Pagination or Media Count : 217


Abstract : Radioactive materials were released into the environment following the accident at the Fukushima Daiichi Nuclear Power Station following the earthquake and tsunami in Japan on March 11, 2011. Individuals in Japan affiliated with the Department of Defense (DOD) were exposed to these materials during Operation Tomodachi, and in response the DOD conducted the internal monitoring (IM) program described in this report. More than 7,900 DOD-affiliated individuals were internally monitored as part of this program from March 16 to August 31, 2011, at both CONUS and OCONUS locations. About 3% of those monitored had a measured activity greater than the minimum detectable activity (MDA). Those persons with measured activities greater than MDA had a maximum committed effective dose of 0.25 mSv (0.025 rem) and a maximum thyroid committed equivalent dose of 4.2 mSv (0.42 rem). In addition to descriptions of IM equipment, procedures, methodologies, and monitoring results, the report also includes discussions of the IM program's concept of operations, radiation safety directives, and quality assurance program.


Descriptors :   *MONITORING , *RADIATION DOSAGE , DEPARTMENT OF DEFENSE , EARTHQUAKES , INTERNAL , JAPAN , PERSONNEL , THYROID GLAND , TSUNAMIS


Subject Categories : Radiobiology


Distribution Statement : APPROVED FOR PUBLIC RELEASE