Measurement and analysis of integral fusion neutronics data on simulated experimental lithium-lead module at the LOTUS facility
- Institut de Genie Atomique, Lausanne (Switzerland)
- Univ. of California, Los Angeles, CA (United States)
In-system foil activation rates and tritium production rates were measured in an experimental lithium-lead module (EL{sup 2}M)- major component being a 62-cm thick pseudo-cylindrical region containing lithium and lead pellets so arranged as to simulate Li{sub 17}Pb{sub 83} eutectic - at fusion blanket neutronics facility LOTUS. Sets of two foils each - Zr and In - were irradiated at multiple locations in the central rod to measure {sup 90}Zr(n,2n){sup 89m+g}Zr and {sup 115}In(n,n{prime}){sup 115m}In reaction rates. Tritium measurements were done using two techniques: off-line liquid scintillation technique of Dierck and on-line lithium glass scintillation technique, the latter technique providing only T{sub 6} (tritium from {sup 6}Li). These measurements have been analyzed both by two-dimensional and three-dimensional transport codes DORT and MCNP, respectively. Though computed results broadly reproduce spatial profiles (along the central rod) of the measured quantities, differences as large as 50% are found.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 35580
- Journal Information:
- Journal of Fusion Energy, Vol. 13, Issue 1; Other Information: PBD: Mar 1994
- Country of Publication:
- United States
- Language:
- English
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