A novel method for the measurement of the von Neumann spike in detonating high explosives

• DOI: 10.1063/1.4955075
• Publication Date: 2016-07-01T01:56:15Z
• Authors: A. Sollier; V. Bouyer; P. Hébert; M. Doucet
• Keywords: TATB; Detonator

We present detonation wave profiles measured in T2 (97 wt. % TATB) and TX1 (52 TATB 45 HMX) high explosives. The experiments consisted initiating a 15 mm diameter cylinder of explosive using an wire detonator booster. Free surface velocity were at the explosive/air interface Photon Doppler Velocimetry system. demonstrate that comparison these free with those explosive/window interfaces similar conditions allows to bracket von Neumann spike narrow range. For T2, our measurements show pressure lies between 35.9 40.1 GPa, whereas for TX1, it 42.3 47.0 GPa. numerical simulations performed support they can be used calibrate reactive burn models also check accuracy products equation state low pressure.