Shock temperature measurement using neutron resonance spectroscopy |
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Authors: | Yuan V W Bowman J David Funk D J Morgan G L Rabie R L Ragan C E Quintana J P Stacy H L |
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Institution: | Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. |
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Abstract: | We report a direct measurement of temperature in a shocked metal using Doppler broadening of neutron resonances. The 21.1-eV resonance in 182W was used to measure the temperature in molybdenum shocked to approximately 63 GPa. An explosively launched aluminum flyer produced a planar shock in a molybdenum target that contained a 1-mm thick layer doped with 1.7 at. %(182)W. A single neutron pulse, containing resonant neutrons of less than 1 mus duration, probed the shocked material. Fits to the neutron time-of-flight data were used to determine the temperature of the shocked molybdenum. |
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