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High-yield neutron activation system for the National Ignition Facility

Rev. Sci. Instrum. 72, 818 (2001); doi:10.1063/1.1319360

Issue Date: January 2001

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Cris W. Barnes, Thomas J. Murphy, and John A. Oertel
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
The most accurate absolutely calibrated measurement of the total yield of neutrons from experiments on the National Ignition Facility will be from activation of threshold nuclear reactions. The high-yield neutron activation system is being designed to provide high-accuracy (similar to the ±7% achieved on other fusion experiments) linear measurements over a 9-order-of-magnitude dynamic range from the facility limit of ~1019 neutrons/shot down to a minimum of ~3×1010 neutrons/shot. The system design requirements are presented, and a conceptual design to meet those requirements described. ©2001 American Institute of Physics.
History: Presented 20 June 2000
Permalink: http://link.aip.org/link/?RSINAK/72/818/1

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KEYWORDS and PACS

Keywords
PACS
  • 28.52.Cx
    Nuclear engineering and nuclear power studies Fusion reactors Fueling, heating and ignition
  • 28.52.Lf
    Nuclear engineering and nuclear power studies Fusion reactors Components and instrumentation
  • YEAR: 2001

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
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REFERENCES (10)
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  1. C. W. Barnes, A. R. Larson, and A. L. Roquemore, Fusion Technol. 30, 63 (1996).
  2. C. W. Barnes, A. R. Larson, G. L. LeMunyan, and M. J. Loughlin, Rev. Sci. Instrum. 66, 888 (1995).
  3. C. L. Ruiz and G. W. Cooper, Rev. Sci. Instrum. (these proceedings).
  4. C. L. Ruiz, R. J. Leeper, F. A. Schmidlapp, G. Cooper, and D. J. Malbrough, Rev. Sci. Instrum. 63, 4889 (1992).
  5. C. W. Barnes et al., in Diagnostics for Experimental Thermonuclear Fusion Reactors, edited by P. E. Stott and E. Sindoni (Plenum, New York, 1996), Proceedings of the Workshop held in Varenna (Como), Italy, pp. 379–383.
  6. R. B. Firestone, Table of Isotopes, 8th ed. (Wiley, New York, 1996).
  7. N. Landen, Technical Report UCRL-ID-134644, LLNL, 1999.
  8. A. Kumar, M. A. Abdou, C. W. Barnes, H. W. Kugel, and M. J. Loughlin, Proceedings of the Third International Symposium on Fusion Nuclear Technology, Fusion Eng. Des. 28, 415 (1995).
  9. Technical Report UCRL-MI-133959; NIF-0018678, LLNL, 2000, Version 2.0.
  10. C. W. Barnes et al., in Diagnostics for Experimental Thermonuclear Reactors 2, edited by P. Stott et al. (Plenum, New York, 1998); Proceedings of the Workshop held in Varenna (Como), Italy, pp. 479–490.

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