1. Copper activation deuterium-tritium neutron yield measurements at the National Ignition Facility.
- Author
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Cooper, G. W., Ruiz, C. L., Leeper, R. J., Chandler, G. A., Hahn, K. D., Nelson, A. J., Torres, J. A., Smelser, R. M., McWatters, B. R., Bleuel, D. L., Yeamans, C. B., Knittel, K. M., Casey, D. T., Frenje, J. A., Gatu Johnson, M., Petrasso, R. D., and Styron, J. D.
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NUCLEAR activation analysis , *COPPER , *DEUTERIUM , *NUCLEAR facilities , *PLASMA diagnostics , *NUCLEAR reactions , *ANISOTROPY - Abstract
A DT neutron yield diagnostic based on the reactions, 63Cu(n,2n)62Cu(β+) and 65Cu(n,2n) 64 Cu(β+), has been fielded at the National Ignition Facility (NIF). The induced copper activity is measured using a NaI γ-γ coincidence system. Uncertainties in the 14-MeV DT yield measurements are on the order of 7% to 8%. In addition to measuring yield, the ratio of activities induced in two, well-separated copper samples are used to measure the relative anisotropy of the fuel ρR to uncertainties as low as 5%. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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