  One of the best methods in inertial confinement fusion (ICF) is the concept
of central spark ignition, consisting of two distinct regions named as hot and
cold regions and formed by hydro-dynamical implosion of fuel micro-sphere
central spark ignition method in inertial fusion and fuel pellet design
condition in fusion power plant has been investigated and fuel gain for
isochoric model in this method is calculated. We have shown the effects of
different physical parameters of inertial fusion on fuel gain and optimized
limit for fuel density and fuel pellet radius has been calculated.
