Published 1991 | Version v1
Report Restricted

Design and performance of the Savannah River Site Billet Active Well Coincidence Counter

Creators

Description

The Savannah River Site (SRS) has acquired, installed, and tested a custom-built Billet Active Well (neutron) Coincidence Counter (BAWCC). The BAWCC is used to make accountability measurements of the 235U content of U-Al coextrusion billets in the SRS fuel fabrication facility. The instrument design incorporates a unique center-source configuration, with two moderated americium-lithium (AmLi) neutron sources located in a central spindle that inserts through the center hole of the U-Al billets. This configuration, a result of earlier experimental studies at SRS, yields improved response and precision for billet assay when compared to the standard AWCC source arrangement. Initial tests of the BAWCC at SRS have yielded one-sigma uncertainties of 0.8--1.0% for a fifteen-minute assay. This paper will describe the design, testing program and performance characteristics of the BAWCC

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE92009825; NTIS; INIS; US Govt. Printing Office Dep.

Files

Restricted

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Additional details

Publishing Information

Imprint Pagination
16 p.
Report number
WSRC-MS--91-001

Conference

Title
32. Institute of Nuclear Materials Management (INMM) annual meeting.
Dates
28-31 Jul 1991.
Place
New Orleans, LA (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23054484
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S98: NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM ALLOYS; COINCIDENCE METHODS; DESIGN; NEUTRON DETECTORS; NUCLEAR MATERIALS MANAGEMENT; PERFORMANCE; SAVANNAH RIVER PLANT; URANIUM ALLOYS; URANIUM 235
Descriptors DEC
ACTINIDE ALLOYS; ACTINIDE NUCLEI; ALLOYS; ALPHA DECAY RADIOISOTOPES; COUNTING TECHNIQUES; EVEN-ODD NUCLEI; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MANAGEMENT; MEASURING INSTRUMENTS; MINUTES LIVING RADIOISOTOPES; NATIONAL ORGANIZATIONS; NUCLEI; RADIATION DETECTORS; RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTO; URANIUM ISOTOPES; US AEC; US DOE; US ERDA; US ORGANIZATIONS; YEARS LIVING RADIOISOTOPES

Optional Information

Contract/Grant/Project number
Contract AC09-89SR18035
Funding organization
USDOE, Washington, DC (United States).
Secondary number(s)
CONF-910774--101.