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9 January 1984 Streak Camera Observation Of Weak Imploding Shock Waves In Argon
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Abstract
An experimental requirement to generate shock waves in noble gases from detonating explosive charges and to minimize the usual disruptive effects associated with these charges led to the development and evaluation of an imploding shock wave system based on the use of nitroguanidine, which is a low-density explosive. The explosive surrounded an aluminum tube, the inside of which was filled with argon. The nitroguanidine was initiated at its periphery in such a manner that a cylindrically imploding detonation sent an imploding shock wave through the aluminum tube and into the argon gas. The experimental evaluation of this system was conducted by means of high speed photographic instrumentation, to verify that the imploding detonation in the nitroguanidine was symmetrical, and to observe the reflection of the imploding s!)ock wave in argon at the axis of symmetry. The resulting streak camera records clearly revealed the times at which the shock wave entered the argon gas and at which the shock wave reflected from itself at the center of implosion. The observed shock velocity in the argon was in good agreement with the theoretical value calculated from the shock Hugoniot compression curves for the various materials utilized in the experiment.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James L. Austing "Streak Camera Observation Of Weak Imploding Shock Waves In Argon", Proc. SPIE 0427, High Speed Photography, Videography, and Photonics I, (9 January 1984); https://doi.org/10.1117/12.936285
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