Neutron metrology in the L.F.R. Neutron flux density spectrum in the inner graphite reflector of the L.F.R
Description
The neutron spectrum in the vertical central plug of the Low Flux Reactor has been determined experimentally. Sets of activation and fission detectors have been irradiated, and the neutron spectrum has been unfolded with aid of 3 special computer programs SAND-II, RFSP-JUEL and CRYSTAL BALL. Using these 3 programs calculations are made on the improvement ratio, which is defined as the ratio of the variance of the input flux density to that of the output flux density. A Monte Carlo error analysis is made to examine the quality of the 3 solution spectra. The results obtained with the different computer codes were compared, and showed a general agreement. The experiment confirmed that the shape of the spectrum in the intermediate energy region is near the 1/E pattern. (author)
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Additional details
Publishing Information
- Imprint Title
- Compilation of neutron flux density spectra and reaction rates in different neutron fields
- Imprint Pagination
- 324 p.
- Journal Page Range
- p. 1-56.
- Report number
- IAEA-RL--61(v.1)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 13665487
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- COMPARATIVE EVALUATIONS; COMPUTER CODES; EXPERIMENTAL DATA; FLUX DENSITY; LFR REACTOR; MONTE CARLO METHOD; NEUTRON FLUX; NEUTRON REFLECTORS; NEUTRON SPECTRA; NEUTRON SPECTROSCOPY
- Descriptors DEC
- ARGONAUT TYPE REACTORS; DATA; ENRICHED URANIUM REACTORS; INFORMATION; NUMERICAL DATA; RADIATION FLUX; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SPECTRA; SPECTROSCOPY; THERMAL REACTORS; TRAINING REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- Imprint:This work is performed based upon the recommendation of International Working Group of Reactor Radiation Measurements (IWGRRM).