14 MeV neutron distribution in a shield with a hollow channel
Creators
- 1. Institute for Nuclear Research and Nuclear Energy, Tzarigradsko Chaussee 72, 1784 Sofia (Bulgaria)
Description
Results obtained using the Monte Carlo three-dimensional code MORSE and the two-dimensional discrete ordinate code DORT are compared. The assembly geometry was an iron-water cylinder with height of 200cm, diameter of 100cm and hollow channel 10cm in diameter. 14MeV neutrons were emitted isotropically from a point source situated at the channel axis 20cm away from the channel origin. The neutron spectra and the integral fluxes over wide energy intervals of fluxes were calculated at detector locations along the channel. A 27-group neutron library used by MORSE was prepared in P5 approximation employing SUPERTOG, using ENDF/B-4 for H and Fe, and ENDL-II for O. A 35-group neutron library FLUNG was also applied. Comparison of the results shows a consistency of flux values along the channel which are within the fraction standard deviation limits of the MORSE calculations. ((orig.))
Additional details
Publishing Information
- Journal Title
- Nuclear Engineering and Design
- Journal Volume
- 150
- Journal Issue
- 1
- Journal Page Range
- p. 177-181.
- ISSN
- 0029-5493
- CODEN
- NEDEAU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 26013392
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- COMPUTER CALCULATIONS; MEV RANGE 10-100; NEUTRON FLUX; NEUTRON SOURCES; NEUTRON SPECTRA; NEUTRON TRANSPORT; POINT SOURCES; SHIELDING; SHIELDS
- Descriptors DEC
- ENERGY RANGE; MEV RANGE; NEUTRAL-PARTICLE TRANSPORT; PARTICLE SOURCES; RADIATION FLUX; RADIATION SOURCES; RADIATION TRANSPORT; SPECTRA