The paper presents results of numerical experiments on the heating and compression of a spherical hydrogen pellet by laser pulses with energies of several hundred Joules in a laser fusion simulation. Attention is given to the effects of the preheating of the central part of the target by fast electrons, of constraints on the heat flux, of variations in the equations of state and energy transfer rate between plasma components on neutron yield and limit compression. It is shown that the energetic characteristics of the process depend significantly on details of the model which refer to the preheating and constraints on heat conductivity.
Soviet Journal of Plasma Physics
- Pub Date:
- July 1977