Field test and evaluation of the passive neutron coincidence collar for prototype fast reactor fuel subassemblies
The passive neutron Coincidence Collar, which was developed for the verification of plutonium content in fast reactor fuel subassemblies, has been field tested using Prototype Fast Reactor fuel. For passive applications, the system measures the /sup 240/Pu-effective mass from the spontaneous fission rate, and in addition, a self-interrogation technique is used to determine the fissile content in the subassembly. Both the passive and active modes were evaluated at the Windscale Works in the United Kingdom. The results of the tests gave a standard deviation 0.75% for the passive count and 3 to 7% for the active measurement for a 1000-s counting time. The unit will be used in the future for the verification of plutonium in fresh fuel assemblies.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6765241
- Report Number(s):
- LA-9449-MS; ON: DE83000467
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
FISSILE MATERIALS
RADIOMETRIC ANALYSIS
FUEL ASSEMBLIES
NEUTRON DETECTORS
COINCIDENCE METHODS
PFR REACTOR
PLUTONIUM
CALIBRATION
DATA ANALYSIS
EFFECTIVE MASS
EXPERIMENTAL DATA
FIELD TESTS
PLUTONIUM 240
REACTIVITY
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
BREEDER REACTORS
CHEMICAL ANALYSIS
COUNTING TECHNIQUES
DATA
ELEMENTS
EPITHERMAL REACTORS
EVEN-EVEN NUCLEI
FAST REACTORS
FBR TYPE REACTORS
FISSIONABLE MATERIALS
HEAVY NUCLEI
INFORMATION
ISOTOPES
LIQUID METAL COOLED REACTORS
MASS
MATERIALS
MEASURING INSTRUMENTS
METALS
NUCLEI
NUMERICAL DATA
PLUTONIUM ISOTOPES
POWER REACTORS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATION DETECTORS
RADIOISOTOPES
REACTORS
SODIUM COOLED REACTORS
TESTING
TRANSURANIUM ELEMENTS
YEARS LIVING RADIOISOTOPES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
400103 - Radiometric & Radiochemical Procedures- (-1987)
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments