14-MeV neutron multiplication measurement in lead

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Fusion Technol.; (United States)

OSTI ID:6198552

Joneja, O P; Nargundkar, V R; Basu, T K

The experimentally measured value of 14-MeV neutron multiplication for 10-cm thick lead in rectangular geometry agrees within 1% of the corresponding calculated value using the MORSE-E code with the Los Alamos National Laboratory 30-group cross-section set CLAW-IV, in P/sub 3/ scattering approximation. This result is in direct contrast with measurements with lead spheres of 3-, 6-, 9-, and 12-cm radii, where the measured multiplication values are found to be --15% higher than the corresponding transport calculations performed using the ANISN and NITRAN codes with the ENDF/B-IV library. However, Monte Carlo calculations using the MORSE-E code with the CLAW- IV library, as well as those using the MCNP code with the ENDF/B-V library, agree very well. Thus, the real difference of leakage neutron multiplication in lead is not between the measurements and the calculations. It is found that by using lead as a neutron multiplier in practical fusion blankets, a 5 to 10% higher neutron multiplication can be obtained than with beryllium for identical configurations of the multiplier.

• Research Organization: Bhabha Atomic Research Centre, Neutron Physics Div., Trombay, Bombay 400 085
• OSTI ID: 6198552
• Journal Information: Fusion Technol.; (United States), Journal Name: Fusion Technol.; (United States) Vol. 12:1; ISSN FUSTE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
A CODES
ALKALINE EARTH METALS
BERYLLIUM
BREEDING BLANKETS
C CODES
COMPUTER CODES
DIMENSIONS
ELEMENTS
ENERGY RANGE
EXPERIMENTAL REACTORS
LASL
LEAD
M CODES
METALS
MEV RANGE
MEV RANGE 10-100
MONTE CARLO METHOD
N CODES
NATIONAL ORGANIZATIONS
NEUTRON FLUX
RADIATION FLUX
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
SCATTERING
SUBCRITICAL ASSEMBLIES
THERMONUCLEAR REACTORS
THICKNESS
US AEC
US DOE
US ERDA
US ORGANIZATIONS