Compact simulators based on electron beam scaled for heavy ion beam driver in inertial confinement fusion

摘要

Not only from the view point of the experimental apparatus, but also from the view point of the numerical and theoretical approaches, the simplified and scaled simulators are useful to clear the mechanisms of beam dynamics such as the emittance growth. Using the longitudinal envelope equation, the ratio between the repulsion forces due to the space charge and the emittance was estimated. The numerical simulations were carried out in the parameters of compact electron beam experimental devices. These theoretical and numerical approaches suggested that if the initial temperature is low enough, the compact simulator will be able to simulate the beam dynamics around the stagnation point at the unneutralized bunch compression.