Modulation of the neutron field in the multiplying condensed matter and coolant
- Akhiezer Institute for Theoretical Physics, NSC KIPT, 1 Akademicheskaya Str., 61108 Kharkiv (Ukraine)
The spatial damping of acoustic, neutron and thermal branches of oscillations are found in neutron multiplying medium with coolant. All three branches give additive contribution to the neutron density oscillations. However, their wave numbers and coefficients of spatial damping (at the same frequency) differ greatly from the sound with its high phase velocity and small attenuation to the neutron wave with the damping length, which is comparable with its wavelength. A spatial growth of neutron density oscillations is found in the case of large frequency of neutron capture and weak coupling of neutron density and temperature branches of oscillations. This fact is of importance for the noise diagnostics of the multiplying medium with coolant. The results can be applied to the development of the methods of noise diagnostics of the in core reactor equipment.
- OSTI ID:
- 21371362
- Journal Information:
- AIP Conference Proceedings, Vol. 1198, Issue 1; Conference: 3. conference on statistical physics dedicated to the 100. anniversary of Mykola Bogolyubov, Lviv (Ukraine), 23-25 Jun 2009; Other Information: DOI: 10.1063/1.3284415; (c) 2009 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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22 GENERAL STUDIES OF NUCLEAR REACTORS
CAPTURE
COMPRESSIBLE FLOW
COOLANTS
DAMPING
HEAT TRANSFER
MODULATION
NEUTRON DENSITY
NEUTRON REACTIONS
NEUTRONS
NUMERICAL ANALYSIS
OSCILLATIONS
PHASE VELOCITY
REACTOR CORES
SOUND WAVES
BARYON REACTIONS
BARYONS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
FLUID FLOW
HADRON REACTIONS
HADRONS
MATHEMATICS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
REACTOR COMPONENTS
VELOCITY