Guidance document on the variance propagation requirements in DOE Order 5633. 3

Technical Report · Tue Oct 01 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/5600822· OSTI ID:5600822

Sanborn, J

DOE facilities handling special nuclear material are required to comply with DOE Order 5633.3, which addresses various aspects of nuclear material accounting. In particular, it requires that control limits be calculated for nuclear material inventory differences. These requirements and methods of meeting them are described. The four steps in this process are the creation of a variance propagation model of the nuclear material accounting system, the validation of the model, the application of the model, and the documentation of the model; the first two of these steps are discussed at length. Topics addressed include: the mathematics of variance propagation, the structure of nuclear material accounting systems, sources of uncertainty in real accounting systems, statistical models of these sources of uncertainty, methods of estimating error standard deviations, calculation of control limits from inventory difference standard deviations, and comparison of models with historical inventory difference data. A chapter is also devoted to calculational methods. The approach emphasizes constructing models that can be implemented relatively easily and improved as data is accumulated and understanding of the system is gained, rather than attempting all-inclusive, highly detailed models at the outset.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5600822
• Report Number(s): BNL-52315; TSO-88-13; ON: DE92010380
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ACCOUNTING
LIMITING VALUES
STATISTICAL MECHANICS
NUCLEAR FACILITIES
NUCLEAR MATERIALS MANAGEMENT
US DOE
ALGORITHMS
INVENTORIES
MATERIAL UNACCOUNTED FOR
MATHEMATICAL MODELS
SHORTAGES
MANAGEMENT
MATHEMATICAL LOGIC
MECHANICS
NATIONAL ORGANIZATIONS
US ORGANIZATIONS
055000* - Nuclear Fuels- Safeguards
Inspection
& Accountability
056000 - Nuclear Fuels- Legislation & Regulations- (1987-)
990200 - Mathematics & Computers