Measurements and evaluations of nuclear data to support early design needs of the FMIT facility

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The Fusion Materials Irradiation Test (FMIT) facility is currently being designed for use in the study of neutron radiation effects in fusion reactor materials. This facility will make use of the intense source of high energy neutrons produced by a beam of 35 MeV deuterons incident upon a thick target of liquid lithium. In the forward direction, the neutron spectrum from this source peaks near 14 MeV as in a fusion device. However, the neutron energy spectrum in the FMIT facility will be broader and there will be a significant number of neutrons emitted with energies up to about 30 ... continued below

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Pages: 23

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Johnson, D.L.; Mann, F.M. & Schenter, R.E. April 1, 1980.

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The Fusion Materials Irradiation Test (FMIT) facility is currently being designed for use in the study of neutron radiation effects in fusion reactor materials. This facility will make use of the intense source of high energy neutrons produced by a beam of 35 MeV deuterons incident upon a thick target of liquid lithium. In the forward direction, the neutron spectrum from this source peaks near 14 MeV as in a fusion device. However, the neutron energy spectrum in the FMIT facility will be broader and there will be a significant number of neutrons emitted with energies up to about 30 MeV. A small fraction will be emitted with even higher energies, up to a maximum of 50 MeV. Since ENDF/B evaluations of neutron-cross section data extend only to 20 MeV (with little data above 15 MeV) there is a great need for neutron data from 15 to 50 MeV for the FMIT facility. Furthermore, nuclear reaction cross sections induced by deuterons up to 35 MeV are a vital part of design and operation considerations, and are even less well understood than the neutron data. The time scale of the design of the FMIT facility has been so rapid that it has precluded large amounts of new nuclear data coming from outside the project. This report outlines work carried out within the FMIT project to supply the most immediate nuclear data needs. Nuclear data needs for remaining design considerations and for long-term operational uses will be discussed.

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Pages: 23

Notes

NTIS, PC A02/MF A01.

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  • Symposium on neutron cross sections from 10 - 50 MeV, Upton, NY, USA, 12 May 1980

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  • Report No.: HEDL-SA-2140-FP
  • Report No.: CONF-800551-17
  • Grant Number: AC14-76FF02170
  • Office of Scientific & Technical Information Report Number: 5331373
  • Archival Resource Key: ark:/67531/metadc1068609

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 1980

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 20, 2018, 5:49 p.m.

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Johnson, D.L.; Mann, F.M. & Schenter, R.E. Measurements and evaluations of nuclear data to support early design needs of the FMIT facility, article, April 1, 1980; United States. (digital.library.unt.edu/ark:/67531/metadc1068609/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.