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Laser Diode Reflectometry and Infrared Emission Measurements of Permeating Gases at High Driving Pressures and Temperatures

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Abstract:

We report the use of infrared diode lasers in a diffuse reflection geometry for detection of the cyclotetramethylentetranitramine (HMX) combustion product CO permeating through a silicon carbide bed. We find that infrared emission and transient absorption are coincident with these pressure waves and demonstrate the feasibility of these diagnostics for detecting molecular species in hostile environments. We conclude from the experimental evidence that macroscopic convective heating may play a limited role in the deflagration-to-detonation transition (DDT) of porous explosives.

Keywords: High explosives; Laser diode reflectometry; Transient infrared absorption

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702963906555

Affiliations: 1: Chemical Kinetics, Reactions, and Dynamics, CST-6, MS J567, Chemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 2: Explosive Technology and Safety Group, DX-16, Dynamic Experimentation Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Publication date: February 1, 1996

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