Neutron Assay System for Confinement Vessel Disposition

Conference · Fri Jul 13 04:00:00 EDT 2012

OSTI ID:1046504

Frame, Katherine C ^[1]; Bourne, Mark M ^[1]; Crooks, William J ^[1]; Evans, Louise ^[1]; Mayo, Douglas R ^[1]; Miko, David K ^[1]; Salazar, William R ^[1]; Stange, Sy ^[1]; Valdez, Jose I ^[1]; Vigil, Georgiana M ^[1]

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1. Los Alamos National Laboratory

Los Alamos National Laboratory has a number of spherical confinement vessels (CVs) remaining from tests involving nuclear materials. These vessels have an inner diameter of 6 feet with 1-inch thick steel walls. The goal of the Confinement Vessel Disposition (CVD) project is to remove debris and reduce contamination inside the CVs. The Confinement Vessel Assay System (CVAS) was developed to measure the amount of special nuclear material (SNM) in CVs before and after cleanout. Prior to cleanout, the system will be used to perform a verification measurement of each vessel. After cleanout, the system will be used to perform safeguards-quality assays of {le}100-g {sup 239}Pu equivalent in a vessel for safeguards termination. The CVAS has been tested and calibrated in preparation for verification and safeguards measurements.

• Research Organization: Los Alamos National Laboratory (LANL)
• Sponsoring Organization: DOE/LANL
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1046504
• Report Number(s): LA-UR-12-22970
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
42 ENGINEERING
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CONFINEMENT
CONTAMINATION
LANL
NEUTRONS
NUCLEAR MATERIALS MANAGEMENT
SAFEGUARDS
STEELS
VERIFICATION