Slowing Down of Neutrons in Graphite Close to Thermal Equilibrium
- 1 March 1960
- journal article
- research article
- Published by Taylor & Francis in Nuclear Science and Engineering
- Vol. 7 (3) , 240-244
- https://doi.org/10.13182/nse60-a25708
Abstract
Elastic and one-phonon inelastic scattering cross sections of neutrons in graphite have been calculated for neutron energy less than 2000 k0. For the lattice vibrations in graphite, the model proposed by Krumhansl and Brooks has been used. We have also calculated the mean energy loss per collision and the mean logarithmic energy decrement. Assuming that close to equilibrium the neutron distribution remains Maxwellian, the time variation of the temperature of this distribution has been calculated. The slowing down relaxation time near equilibrium comes out to nearly 170 µsec, which compares well with the experimental value of 185 ± 45 µsec.Keywords
This publication has 5 references indexed in Scilit:
- Thermal Inelastic Scattering of Cold Neutrons in Polycrystalline Graphite. IIPhysical Review B, 1958
- Measurements with a Pulsed Neutron SourceNuclear Science and Engineering, 1957
- Thermal Inelastic Scattering of Cold Neutrons in Polycrystalline GraphitePhysical Review B, 1957
- LXXXI. Lattice vibrations and specific heat of graphitePhilosophical Magazine, 1956
- The Lattice Vibration Specific Heat of GraphiteThe Journal of Chemical Physics, 1953