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Uranium plasma emission at gas-core reaction conditionsThe results of uranium plasma emission produced by two methods are reported. For the first method a ruby laser was focused on the surface of a pure U-238 sample to create a plasma plume with a peak plasma density of about 10 to the 20th power/cu cm and a temperature of about 38,600 K. The absolute intensity of the emitted radiation, covering the range from 300 to 7000 A was measured. For the second method, the uranium plasma was produced in a 20 kilovolt, 25 kilojoule plasma-focus device. The 2.5 MeV neutrons from the D-D reaction in the plasma focus are moderated by polyethylene and induce fissions in the U-235. Spectra of both uranium plasmas were obtained over the range from 30 to 9000 A. Because of the low fission yield the energy input due to fissions is very small compared to the total energy in the plasma.
Document ID
19780018911
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Williams, M. D.
(NASA Langley Research Center Hampton, VA, United States)
Jalufka, N. W.
(NASA Langley Research Center Hampton, VA, United States)
Hohl, F.
(NASA Langley Research Center Hampton, VA, United States)
Lee, J. H.
(Vanderbilt Univ.)
Date Acquired
August 9, 2013
Publication Date
September 1, 1976
Publication Information
Publication: Princeton Univ. Partially Ionized Plasmas, Including the 3rd Symp. on Uranium Plasmas
Subject Category
Plasma Physics
Accession Number
78N26854
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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