Inertial Confinement Fusion is a method to perform fusion reactions to power production purposes. Recently, fast ignition has been suggested to transmission and deposition energy to the fuel. In Fast Ignition, energy deposition to the fuel is performed in two phases. At first, pellet is exposed with ultra-intense driver beams which is caused a primery compression of the fuel; but the fuel doesn’t ignite. In the second phase and after a time interval of order of pico-second, an ultra-intense pulse of relativistic electrons or protons of order of is radiated from a side to the target and increase temperature of this point -hot spot- much enough that the fuel in this point ignite and the fusion reactions are. In this thesis, spherical pellets of D-T fuel are investigated for the Fast Ignition in different ?R parameters, have consider relativistic electrons and protons as driver pulses which are generated from collision of ultra-intense laser with a thin plate of Aluminum that has been inserted in a golden cone in the pellet; this method calls Laser Induced Particle. To simulate this mechanism, we use the MCNP code to calculate the energy deposition and flux of driven pulses in the pellet’s cells. We showed that when we increase the ?R parameter, the energy deposition in first layers increased. We have shown that the deposit energy of electrons to the fuel, increases by increasing ?R parameter. However, for 1MeV electrons i Key words Fast ignition – inertial confinement fusion – magnetohydrodynamic – magnetic target fusion