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Latest News
NS Savannah soon open to the public
The world’s first nuclear-powered merchant ship, the NS Savannah, will have a public site visit in Baltimore, Md., on Saturday, February 21.
To register for the event and find up-to-date details on the event’s address, time, and more, click here.
Norikazu Kinoshita, Hiroshi Matsumura, Kotaro Bessho, Akihiro Toyoda, Kazuyoshi Masumoto, Yuki Matsushi, Kimikazu Sasa, Tsutomu Takahashi, Shozo Mihara, Toshiyuki Oki, Masumi Matsumura, Yuki Tosaki, Keisuke Sueki, Michiko Tamari, Yasuo Nagashima
Nuclear Technology | Volume 168 | Number 3 | December 2009 | Pages 694-699
Accelerators | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (PART 3) / Radiation Measurements and Instrumentation | doi.org/10.13182/NT09-A9292
Articles are hosted by Taylor and Francis Online.
The evaluation of radioactivity induced in the concrete shield is important for the decommissioning of accelerator facilities. Specific activities of gamma-ray emitters of nuclear spallation products and thermal neutron capture products and beta-ray emitters such as tritium and 14C, and 36Cl in the concrete shield along the 12-GeV proton beam line (EP1 beam line, High Energy Accelerator Research Organization) were determined. The depth profiles of the radioactivity of each nuclide in the 6-m-thick concrete shield of the beam lines were compared, and the secondary particles and induced nuclear reactions were discussed.
