Apparatus and method for quantitative assay of samples of transuranic waste contained in barrels in the presence of matrix material

Patent · Fri Aug 28 00:00:00 EDT 1987

OSTI ID:6156683

Caldwell, J. T.; Herrera, G. C.; Hastings, R. D.; Shunk, E. R.; Kunz, W. E.

Apparatus and method for performing corrections for matrix material effects on the neutron measurements generated from analysis of transuranic waste drums using the differential-dieaway technique. By measuring the absorption index and the moderator index for a particular drum, correction factors can be determined for the effects of matrix materials on the ''observed'' quantity of fissile and fertile material present therein in order to determine the actual assays thereof. A barrel flux monitor is introduced into the measurement chamber to accomplish these measurements as a new contribution to the differential-dieaway technology. 9 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7090718
• Application Number: ON: DE89011781
• OSTI ID: 6156683
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA-BEARING WASTES
RADIOACTIVE WASTE STORAGE
NEUTRONS
MEASURING INSTRUMENTS
INVENTIONS
OPTIMIZATION
RADIOACTIVE WASTE MANAGEMENT
BARYONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MANAGEMENT
MATERIALS
NUCLEONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
STORAGE
WASTE MANAGEMENT
WASTE STORAGE
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
053000 - Nuclear Fuels- Environmental Aspects
440103 - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation