Measurements and analysis of transmitted spectra from LOTUS fission-suppressed hybrid blanket driven by D-T neutrons |
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| Authors: | Anil Kumar William R. Leo Lawrence Green Gene L. Woodruff |
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| Affiliation: | (1) Institut de Génie Atomique, Ecole Polytechnique, Fédérale de Lausanne, CH-1015 Lausanne, Switzerland;(2) Westinghouse Electric Corporation, P. O. Box 3912, 15230 Pittsburgh, Pennsylvania;(3) University of Washington, 98195 Seattle, Washington;(4) Present address: University of California, 6288 Boelter Hall, 90024-1597 Los Angeles, California;(5) Present address: OFAC, Geneva, Switzerland |
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| Abstract: | ![]()
The neutron spectra transmitted across a fission-suppressed hybrid blanket and its components, driven by a low intensity 14 MeV Haefely neutron generator, were measured with a 2 ×2 NE213 detector at LOTUS facility. These experiments have been analyzed with 2D and 3D codes DOT3.5 and MCNP, respectively. The spectral integrals between 15 to 1 MeV show good agreement among the 2D, the 3D, and the NE213 for 15 cm lead, 18 cm beryllium, and 25 cm graphite slabs. However, there are large discrepancies for 6.2 cm stainless steel and 15 cm lithium carbonate slabs. The assemblies involving two or more of these slabs reflect these tendencies. We observe also considerable disagreement over pointwise spectra for a number of assemblies.Work done while on visiting assignment to Institut de Génie Atomique, E.P.F.L. |
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