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1 Central European Journal of Energetic Materials

1 2016

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OPTIMEX: Measurement of Detonation Front Curvature with a Passive Fiber Optical System

Pachman J., Künzel M., Kubát K., Selesovsky J., Maršálek R., Pospíšil M., Kubíček M., Prokeš A.

Central European Journal of Energetic Materials

2016

Vol. 13, no. 4

807--820

The ability of a newly developed independent passive optical system OPTIMEX to measure the detonation front curvature is demonstrated on charges of pressed explosive A-IX-1 (RDX/ceresin-stearin mixture with 95/5 wt.%). The charges, with length to diameter ratios of from one to four, were prepared from cylinders with diameters of 21 mm, 30 mm, 40 mm and 50 mm pressed to a density of 1.66 g/cm3. Such charges detonate with a velocity of 8220 m/s. The detonation curvature was obtained using 8 optical fibers and the results were compared with photographs acquired by an ultra-high speed framing camera UHSi 12/24.