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Active Well Coincidence Counter measurements of enriched uranium fuel assemblies in scanning and stationary modes

Technical Report ·
OSTI ID:10117233
;  [1]; ; ; ; ;  [2]; ; ; ; ;  [3]
  1. Los Alamos National Lab., NM (United States)
  2. Kurchatov (I.V.) Nuclear Power Plant, Sverdlovsk (USSR)
  3. International Atomic Energy Agency, Vienna (Austria)
+ Show Author Affiliations
The Active Well Coincidence Counter (AWCC) was evaluated at the Beloyarskaya Nuclear Power Plant for the verification of BN600 enriched-uranium fuel assemblies. A custom AWCC insert, new coincidence electronics, and custom software were used. Measurements were performed in stationary and scanning modes to verify the amount of {sup 235}U/cm and the total {sup 235}U. A calibration curve for this type of fuel was established. A stationary measurement determines the amount of {sup 235}U/cm to 2.6% (1 {sigma}) in 1000 s; a single scan at 0.23 cm/s determines the length of the enriched region to 1.4% (1 {sigma}) and determines the total {sup 235}U to 4.2% (1 {sigma}).
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); US Program for Technical Assistance (United States); Department of Defense, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
10117233
Report Number(s):
LA--12224-MS; ISPO--334; ON: DE92006833
Country of Publication:
United States
Language:
English

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Related Subjects

055001
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
B CODES
BELOYARSK-3 REACTOR
COINCIDENCE CIRCUITS
COINCIDENCE METHODS
COUNTING TECHNIQUES
ENRICHED URANIUM
FUEL ASSEMBLIES
GAMMA DETECTION
GAMMA FUEL SCANNING
MATHEMATICAL MODELS
NEUTRON ACTIVATION ANALYSIS
NUCLEAR FUELS
NUCLEAR MATERIALS MANAGEMENT
PHYSICAL PROPERTIES
POWER REACTORS
BREEDING
RADIATION DETECTION
RADIATION PROTECTION
REACTOR SAFETY
STATISTICAL DATA
TECHNICAL ASPECTS
URANIUM 235