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Phys. Rev. Lett. 94, 125504 (2005) [4 pages]

Shock Temperature Measurement Using Neutron Resonance Spectroscopy

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V. W. Yuan, J. David Bowman, D. J. Funk, G. L. Morgan, R. L. Rabie, C. E. Ragan, J. P. Quintana, and H. L. Stacy
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Received 3 September 2004; published 30 March 2005

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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 ∼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. %182W. A single neutron pulse, containing resonant neutrons of less than 1  μs duration, probed the shocked material. Fits to the neutron time-of-flight data were used to determine the temperature of the shocked molybdenum.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.125504
DOI:
10.1103/PhysRevLett.94.125504
PACS:
62.50.+p, 25.40.Ny, 29.30.Hs, 64.30.+t