Tritium breeding measurements in a lithium blanket module with Pb/Be multipliers at the LOTUS facility
The lithium blanket module (LBM) was lent for a fixed duration in 1985 to Ecole Polytechnique Federale de Lausanne under an agreement with the Electric Power Research Institute and Princeton Plasma Physics Laboratory. The first tritium breeding measurements in the central rod of the LBM and their analysis have been reported previously. Some time ago, we carried out additional experiments wherein the Li/sub 2/O sample disk, each having a theoretical density of /approx/85% and dimensions of 17.8-mm diam x 0.9-mm thickness, were placed in four removable rods. In addition to the central rod, the other rods were at /approx/6-, 18-, and 39-cm radial distances from the axis of the central one. The sample disks wee kept at every 3 cm inside each of these rods up to a length of 30 cm in the Li/sub 2/O part of the LBM. The choice of the off-axis rods resulted from our interest in investigating the effect of room return on tritium breeding in the LBM. We chose two of the leading neutron multipliers: (a) a 5-cm-thick (/approx/100- x 110-cm) lead slab and (b) a 6-cm-thick (/approx/66- x 66-cm) beryllium slab. The experimental assembly, consisting of the multiplier followed by the LBM, was kept at 10 cm from the generator. A packet of three foils, zirconium, indium, and aluminum, was placed at the center of the flat face of the generator to monitor the source intensity during the 10-h operation for the experiments with each multiplier. The source intensity is deduced to be /approx/1.9 x 10/sup 12/ n/s for both the experiments. 5 refs., 3 figs.
- OSTI ID:
- 5807108
- Report Number(s):
- CONF-8711195-
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Vol. 55; Conference: American Nuclear Society winter meeting, Los Angeles, CA, USA, 15-19 Nov 1987
- Country of Publication:
- United States
- Language:
- English
Similar Records
The LBM program at the EPFL/LOTUS Facility
Tritium assay of Li/sub 2/O pellets in the LBM/LOTUS experiments
Related Subjects
BREEDING BLANKETS
NEUTRON TRANSPORT
LITHIUM
TRITIUM
BREEDING RATIO
ACTIVITY LEVELS
ANISOTROPY
BERYLLIUM
COMPARATIVE EVALUATIONS
D CODES
EXPERIMENTAL DATA
LEAD
LOTUS FACILITY
MULTIPLICATION FACTORS
NEUTRON REACTIONS
RODS
ALKALI METALS
ALKALINE EARTH METALS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COMPUTER CODES
CONVERSION RATIO
DATA
ELEMENTS
HADRON REACTIONS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
METALS
NEUTRAL-PARTICLE TRANSPORT
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIATION TRANSPORT
RADIOISOTOPES
REACTOR COMPONENTS
YEARS LIVING RADIOISOTOPES
700201* - Fusion Power Plant Technology- Blanket Engineering