Published 2013
| Version v1
Book
Numerical computation of doppler-broadening in the resonance domain
Creators
- 1. Commissariat a l'Energie Atomique et aux Energies Alternatives, Service d'Etudes de Reacteurs et de Mathematiques Appliquees, CEA DEN DM2S/SERMA, 91191 Gif-sur-Yvette cedex (France)
- 2. AREVA NP/PEPDD-F, Tour Areva, Place J. Millier, 92084 La Defense (France)
Description
We have implemented an accurate and fast calculation of the Doppler-broadened kernel PT(E → E') for neutron elastic scattering based on a gas model. An exponential cutoff which accounts for the asymptotic behavior of the error function helps limit the range of integration while eliminating difference effects. This allows for calculating a kernel library for 238U over a very fine energy grid covering the resonance range in only a few hours in a laptop. We give an example showing the impact of 238U elastic up-scattering on the values of self shielded cross sections. (authors)
Additional details
Publishing Information
- Publisher
- American Nuclear Society - ANS
- Imprint Place
- La Grange Park (United States)
- ISBN
- 978-0-89448-700-2
- Imprint Title
- Proceedings of the 2013 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering - M and C 2013
- Imprint Pagination
- 3016 p.
- Journal Page Range
- p. 207-218
Conference
- Title
- 2013 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering
- Acronym
- M and C 2013
- Dates
- 5-9 May 2013
- Place
- Sun Valley, ID (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- France
- INIS RN
- 45033663
- Subject category
- S97: MATHEMATICAL METHODS AND COMPUTING;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ASYMPTOTIC SOLUTIONS; CALCULATION METHODS; CROSS SECTIONS; DOPPLER BROADENING; DOPPLER EFFECT; ELASTIC SCATTERING; KERNELS; NEUTRONS; NUCLEAR PHYSICS; RESONANCE; URANIUM 238
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; ISOTOPES; LINE BROADENING; MATHEMATICAL SOLUTIONS; NUCLEI; NUCLEONS; PHYSICS; RADIOISOTOPES; SCATTERING; SPONTANEOUS FISSION RADIOISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 17 refs.