Update of Safety Analysis Results
ARIES Electronic Project Meeting
December 4, 1998
Oxidation-Driven Mobilization Analysis
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Assumptions
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Vaporization Analysis
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- Off-site doses caused by the mobilization of the radioactive inventory are calculated using temperature profiles obtained from the LOCA analysis
- The accident is assumed to last for 24 hours at an average structure temperature of 700 °C
- A divertor LOCA is also assumed to last for 24 hours during which the tungsten brush reaches an average temperature of 600 °C
- The release rates used are based on INEEL's oxidation-driven volatility data
- Less than 10% of the 210Po produced in PBLi assumed to be mobilized during an accident
- Less than 30% of the 203Hg produced in PBLi assumed to be mobilized during an accident
- A leak rate of 1% per day through the vacuum boundary and a containment factor of 99% for the containment boundary are considered