Critical diameter for and fluctuations in detonation of solutions of dinitrotoluene in nitroglycol

The critical detonation diameters of nitroglycol and solutions of dinitroto luene in nitroglycol in paper shells are measured. The frequency of the det onation fluctuations is determined. Data with glass and paper shells are th e same. The frequency of the fluctuations is independent of the concentrati on of the solution at approximate to 7 MHz. The detonation parameters of th ese solutions are compared with systems which detonate in a low-frequency ( approximate to 2 MHz) spin regime. When the dinitrotoluene content of the s olution is less than or equal to 15%, the critical detonation diameter is c onstant and equal to that for nitroglycol, but as the dinitrotoluene concen tration is raised, the critical detonation diameter increases. The experime ntal results are in good agreement with theory.