Characterization of neutron sources from spent fuel casks. [Skyshine]

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5989933

Parks, C V; Pace, III, J V

In the interim period prior to the acceptance of spent fuel for disposal by the USDOE, utilities are beginning to choose dry cask storage as an alternative to pool re-racking, transshipments, or new pool construction. In addition, the current MRS proposal calls for interim dry storage of consolidated spent fuel in concrete casks. As part of the licensing requirements for these cask storage facilities, calculations are typically necessary to determine the yearly radiation dose received at the site boundary. Unlike wet facilities, neutron skyshine can be an important contribution to the total boundary dose from a dry storage facility. Calculation of the neutron skyshine is in turn heavily dependent on the source characteristics and source model selected for the analysis. This paper presents the basic source characteristics of the spent fuel stored in dry casks and discusses factors that must be considered in evaluating and modeling the radiation sources for the subsequent skyshine calculation. 4 refs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5989933
• Report Number(s): CONF-871101-49; ON: DE87012927
• Country of Publication: United States
• Language: English

Related Subjects

050900* -- Nuclear Fuels-- Transport
Handling
& Storage
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CALCULATION METHODS
CASKS
CONTAINERS
DRY STORAGE
ENERGY SOURCES
FUELS
HAZARDS
HEALTH HAZARDS
LICENSING
MATERIALS
NEUTRON SOURCES
NUCLEAR FUELS
PARTICLE SOURCES
PWR TYPE REACTORS
RADIATION HAZARDS
RADIATION SOURCES
REACTOR MATERIALS
REACTORS
SPENT FUEL CASKS
SPENT FUEL STORAGE
SPENT FUELS
STORAGE
WATER COOLED REACTORS
WATER MODERATED REACTORS