Abstract
Intensity of the shock wave propagated in translational and radial direction was evaluated by brightness of the experimentally observed light emission and by calculated field in numerical simulation. Light emission from the shock wave was acquired from the optical observation with a high-speed video camera. Dependence of the brightness and pressure on the length of the shock wave were investigated. As a result, it is found that the brightness and pressure of the shock wave increases with shorting shock wave length due to convergence in cylinder.
