Dynamic Measurement of the HMX β- δ Phase Transition by Second Harmonic Generation
作者： B. F. Henson , B. W Asay , R. K. Sander , S. F. Son , J. M. Robinson
DOI: 10.1103/PHYSREVLETT.82.1213
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摘要: We demonstrate the use of optical second harmonic generation (SHG) to identify {beta}-{delta} phase transition in polycrystalline HMX. This has been implicated thermal decomposition HMX for over 30 years. measure an order magnitude difference SHG cross section from {beta} and {delta} phases this intensity observe during CO{sub 2} laser irradiation. is first known {ital inthinspthinspsitu } measurement a such energetic material dynamic experiment, example class organic nitramine molecular crystals. {copyright} 1999} The American Physical Society}
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