Estimate of airborne release of plutonium from Babcock and Wilcox plant as a result of severe wind hazard and earthquake

Abstract

4 x per Year Probability of Cccurrence Range and Type of Responses i n FAB-1 Area to 0.08 t o 0.16 g Ground Acceleration Levels, 3 x per Year Probability o f Occurrence Range and Type of Responses i n FAB-6 to 0.08-0.16 g Ground Acceleration Level, 3 x per Year Probability of Occurrence Range and Types of Responses in FABt o 0.20-0.29 g Ground Acceleration Level, 7.1 x 10-b per Year Probability of Occurrence Range and Types of Responses i n FA-6 t o 0.20 g-0.

340 Facility emergency preparedness hazards assessment

“…(Mishima et al 1978). The administrative limits of 10 Ci of bettigamma and 1.5 Ci of alpha activity in the waste were used to derive the foIlowing source term: …”

340 Facility secondary containment and leak detection

“…Therefore, the nitric acid flows where the waste flows and does not volatilize on its own. In looking at the data which generated the ARF:RF of 1 E-04:l.O for the radiological release, it can be seen that the mass fraction of particles made airborne in a spray from an orifice of 0.016 mm-diameter at 350 kPa is 0.07 (Mishima, et al 1978). It is assumed that particles greater the 100 pm aerodynamic equivalent diameter (AED) will deposit prior to being released from the facility.…”

Review of accident analysis calculations, 232-Z seismic scenario

“…mg/m3 is assumed to be produced from the crush-impact. The weight percent of Pu in PuO2 is 88 and the mass fraction of airborne material in the respirable size range (<10 _m AED) is assumed to be 0.1 (Mishima et al 1978). The source term from the crushed duct is 300 mg/m3 x 0.6 m3 x 0.88 g Pu/g PuO2 x 0.1 respirable= 15.8 mg Pu.…”