Shock temperature measurement using neutron resonance spectroscopy

被引:67
|
作者
Yuan, VW [1 ]
Bowman, JD [1 ]
Funk, DJ [1 ]
Morgan, GL [1 ]
Rabie, RL [1 ]
Ragan, CE [1 ]
Quintana, JP [1 ]
Stacy, HL [1 ]
机构
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
关键词
D O I
10.1103/PhysRevLett.94.125504
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report a direct measurement of temperature in a shocked metal using Doppler broadening of neutron resonances. The 21.1-eV resonance in W-182 was used to measure the temperature in molybdenum shocked to similar 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. %W-182. A single neutron pulse, containing resonant neutrons of less than 1 mu s duration, probed the shocked material. Fits to the neutron time-of-flight data were used to determine the temperature of the shocked molybdenum.
引用
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页数:4
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