Nuclear fuel cycle facility accident analysis handbook

Feasibility study of medical isotope production at Sandia National Laboratories

“…To the extent applicable, the methodologies used in NUREG-1320 (Ayer, 1988) or the suggested ARFs and RFs in the draft DOE standard on release fractions, DOE-STD-SAFT-IS For explosion scenarios inside glove boxes or confinement areas, the release fractions, leak path factors, and damage levels documented by Restrepo (Restrepo, 1991) were used to supplement the above references.…”

“…For example, the inventory of fission products generated in nuclear criticalities was obtained through the use of the computer code ORIGEN2 (ORNL, 1989). The initial source terms for fire-accident scenarios were obtained through the use of the computer code FlRlN (Ayer, 1988) which directly incorporated the methods outlined in NUREG-1320 (DOE, 1993).…”

Analysis of accident sequences and source terms at treatment and storage facilities for waste generated by US Department of Energy waste management operations

“…The dominant accident considered in the literature is an explosion of the ion-exchange column, where self-heating of the ion-exchange resin results in fire or explosion, with attendant discharge of the radionuclide-loaded resin to the surroundings as a radioactive and chemically toxic aerosol. Abnormal conditions causing self-heating of the resin include introduction of a solution with a high concentration of nitric acid (which would result in a highly exothennic reaction), column overloading, presence of dry resin in the column, and high column temperatures (leading to ignition) (Ayer et al 1988). This accident was predicted to have no impact on the operation of the ventilation system of the facility (Mishima et al 1986).…”

“…In this case, the "Combustible Powder" accident physical form may be applicable. For assessment of shock-induced explosions, the trinitrotoluene 0 equivalence of various explosives given in Table 3.4 of NUREG-1320 (Ayer et al 1988) may be used. However, it should be noted that the release of energy may be great enough to cause failure of containment boundaries and lead to opening of alternative flow paths during an accident, affecting the LPF.…”

“…Because almost all scenarios with radiological consequences that have measurable public health effects involve these mechanisms, this information, much of which is based on materials in Elder et al (1986) and Ayer et al (1988), is provided to complement the related discussions in the main text of this report. 4 summarizes fission yields predicted from selected configurations that potentially could occur in U.S. Department of Energy facilities.…”