Physics of inertial fusion
The goal of inertial confinement fusion is to achieve controlled thermonuclear ignition in a deuterium-tritium plasma for power generation. The plasma density and confinement time required are very different from those for magnetic fusion (eleven orders of magnitude). High fuel compression is achieved by spherical implosion of microspheres driven by high power laser beams, ion beams or thermal X-rays. The driver energy is converted to kinetic energy of the imploding shell. The computer simulation of a fusion target imploded by heavy ions is described. The implications of the gain model for the radius of the ignition spark, the isentrope of the cold fuel reservoir, the hydrodynamic efficiency and gain curves are explained, and an analytic theory of spherical implosion is presented. The possibility of achieving implosion symmetry by indirect drive is discussed. Current achievements and future perspectives are outlined.
Bibliographic Reference: Paper presented: International School of Physics "Enrico Fermi", Varenna (IT), July 10-20, 1990
Availability: Available from (1) as Paper EN 35831 ORA
Record Number: 199011803 / Last updated on: 1994-12-02
Original language: en
Available languages: en