Application of solid state track recorder neutron dosimetry for three mile island unit 2 reactor recovery

Autor: Frank A. Schmittroth, Fred J. Leitz, James H. Roberts, Frank H. Ruddy, W.N. McElroy, James A. Ulseth, Benjamin R. Hayward, Raymond Gold, C.C. Preston
Rok vydání: 1983
Předmět:
Zdroj: Nuclear Tracks and Radiation Measurements (1982). 7:13-30
ISSN: 0735-245X
DOI: 10.1016/0735-245x(83)90016-9
Popis: Application of neutron dosimetry for assessment of fuel distribution throughout the Three Mile Island-2 (TMI-2) reactor core region and the primary coolant system is advanced. Neutron dosimetry in the reactor cavity, i.e. the cavity between the pressure vessel and the biological shield, could provide data for the assessment of the core fuel distribution. A more immediate task entails locating and quantifying the amount of fuel debris in the ex-core primary coolant system in the range of 1 to 1000 kg. Solid state track recorder (SSTR) neutron dosimetry is considered for such exploratory scoping experiments at TMI-2. The sensitivity of mica- 2 3 5 U (asymptotically thick) SSTR has been ascertained for such environments. For plausible geometric assumptions and environmental conditions, it has been demonstrated that the SSTR method has adequate sensitivity to properly respond and detect fuel quantities of the order of 1 kg in the ex-core primary coolant system.
Databáze: OpenAIRE