238PuO2 Fuel and Dosimetry

Mayo, Douglas R.¹  Rawool-Sullivan, Mohini¹  Garner, Scott Edward¹  Wenz, Tracy R.¹  Karpius, Peter Joseph¹ 

[1]Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: PLUTONIUM 238;    DAUGHTER PRODUCTS;    OXYGEN 17;    OXYGEN 18;    RADIATION DOSES;    THERMOELECTRIC GENERATORS;    GAMMA DOSIMETRY;    NEUTRON DOSIMETRY;    DOSE RATES NESDPS Office of Nuclear Energy Spa;   

DOI  :  10.2172/1257078
RP-ID  :  LA-UR--16-23836
PID  :  OSTI ID: 1257078
Others  :  TRN: US1601480

美国|英语

来源: SciTech Connect

【 摘 要 】

²³⁸Pu is an ideal material for use as a heat source with its half-life of 87.7 years and copious particle emissions. ²³⁸Pu radioisotope thermoelectric generators (RTGs) have found use for pacemakers, Apollo Space missions, Mars rovers, and Voyager spacecraft. In evaluating the dose to personnel and components near a ²³⁸Pu-based RTG, a number of additional nuclides and their daughter products must be considered to get an accurate estimate for ??-dose, and the amount of ¹⁷O and ¹⁸O for the neutron-dose must be considered. This paper looks at the contributing nuclides and their daughter products that add the most to the dose rates.