Updated Cask for Prevention against Possible Accidental Situations

Design of an updated cask for transportation of hazardous substances is suggested. This method allows us actually to exclude totally any risk at fragment -- bullet effect from outside. Namely, internal cavity of a standard cask with hazardous substance is filled with fine-dispersed loose material. An individual part of this material has high strength. At low velocities of a fragment (W $<$ 1.5km/s), kinetic energy of this fragment is spared for heating and motion of microspheres. At average velocities (1.5 km/s $\le $ W $\le $ 1.85 km/s), kinetic energy of a fragment is spared for heating, motion, and work for collapse of some microspheres. At high velocities (W $>$ 2 km/s), the effect of super deep penetration occurs. If to connect the coordinate system with a moving fragment, we will get a steel target and several echelons of microparticles moving towards this target with high velocity. Since there are a lot of particles, the effect of super deep penetration occurs many times. Fragment is consecutively fragmented to sizes corresponding to sizes of microspheres.