Inventory Abstraction

Leigh, C.

United States. Department of Energy. Yucca Mountain Project Office.

关键词: Environmental Impact Statements;    Transport;    Waste Forms;    Recommendations;    Oxidation;   

DOI  :  10.2172/837101
RP-ID  :  ANL-WIS-MD-000006, REV 00, ICN 01
RP-ID  :  NONE
RP-ID  :  837101

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of the inventory abstraction as directed by the development plan (CRWMS M&O 1999b) is to: (1) Interpret the results of a series of relative dose calculations (CRWMS M&O 1999c, 1999d). (2) Recommend, including a basis thereof, a set of radionuclides that should be modeled in the Total System Performance Assessment in Support of the Site Recommendation (TSPA-SR) and the Total System Performance Assessment in Support of the Final Environmental Impact Statement (TSPA-FEIS). (3) Provide initial radionuclide inventories for the TSPA-SR and TSPA-FEIS models. (4) Answer the U.S. Nuclear Regulatory Commission (NRC)'s Issue Resolution Status Report ''Key Technical Issue: Container Life and Source Term'' (CLST IRSR) (NRC 1999) key technical issue (KTI): ''The rate at which radionuclides in SNF [Spent Nuclear Fuel] are released from the EBS [Engineered Barrier System] through the oxidation and dissolution of spent fuel'' (Subissue 3). The scope of the radionuclide screening analysis encompasses the period from 100 years to 10,000 years after the potential repository at Yucca Mountain is sealed for scenarios involving the breach of a waste package and subsequent degradation of the waste form as required for the TSPA-SR calculations. By extending the time period considered to one million years after repository closure, recommendations are made for the TSPA-FEIS. The waste forms included in the inventory abstraction are Commercial Spent Nuclear Fuel (CSNF), DOE Spent Nuclear Fuel (DSNF), High-Level Waste (HLW), naval Spent Nuclear Fuel (SNF), and U.S. Department of Energy (DOE) plutonium waste. The intended use of this analysis is in TSPA-SR and TSPA-FEIS. Based on the recommendations made here, models for release, transport, and possibly exposure will be developed for the isotopes that would be the highest contributors to the dose given a release to the accessible environment. The inventory abstraction is important in assessing system performance because radionuclide screening determines the scope for several TSPA models, and the abstraction provides input to the TSPA..