The Rectangular Diffraction of Detonation Wave in the High Explosive RHT-901 and the Insensitive High Explosive IHE-2

The patterns of rectangular diffraction of detonation in the high explosive RHT-901 and the insensitive high explosive IHE-2 have bean measured with the rotating mirror framing camera and the coaxial ionization probes techniques. Results show that (1) the reaction is incomplete near the convex angle in IHE-2; (2) the radius of the curvature of the diffractive detonation wave front in RHT-901 is larger than that in IHE-2 and (3) the diffraction of the detonation has relation with the width of reaction zone and the sensitivity of the explosive.