title: Evaluation of induced radioactivity in structural material of Toshiba Training Reactor 'TTR1'.
abstract: A decommissioning programme for the Toshiba Training Reactor (TTR1), a swimming pool type reactor used for reactor physics experiments and material irradiation, was started in August 2001. As a part of the programme, induced radioactivity in structural material was evaluated using neutron flux data obtained with the three-dimensional Sn code TORT. Induced activity was calculated with the isotope generation code ORIGEN-79 using activation cross section data created from multi-group library based on JENDL-3. The obtained results for radioactivities such as 60Co, 65Zn, 54Mn and 152Eu were compared with measured ones, and the present calculational method was confirmed to have enough accuracy.
authors.affiliation: Plant and System Planning Department, Toshiba Corporation, Shinsugita-cho 8, Isogo-ku, Yokohama 235-8523, Japan. Mikio.Uematsu@toshiba.co.jp
authors.forename: Mikio
authors.initials: M
authors.lastname: Uematsu
authors.forename: Masahiko
authors.initials: M
authors.lastname: Kurosawa
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Haruguchi
mesh_terms: D003198:Computer Simulation; D003252:Construction Materials / Q000032:analysis*; D019544:Equipment Failure Analysis; D007564:Japan; D008422:Materials Testing; D008956:Models, Chemical; D009688:Nuclear Reactors / Q000295:instrumentation*; D011835:Radiation Protection / Q000379:methods*; D011868:Radioisotopes / Q000032:analysis*; D011874:Radiometry / Q000379:methods*
chemical_list: D011868:Radioisotopes