Enhancement of fusion energy gain due to the injection of solid boron to fuel capsule utilising the deuteron beam radiation.

In a deuterium–tritium (D–T) reactor, large amounts of neutrons are produced. Although a 3 He fusion reactor produces fewer neutrons, 3 He resources are scarce on Earth. As large amount of deuterium fuel sources are available, a D–D reactor on Earth is an ideal reactor. Although it also produces tritium and neutrons, their production rate is not so high. In this paper, the temperature and time behaviour of an ArF laser-driven fusion reactor containing a functional D–D fuel in the low-temperature region controlled through the injection of a solid 11 B capsule is investigated for the first time, whose main fuel is deuterium and boron is the additional fuel. To increase its energy gain, we use the cone guided manner in fast ignition. The results of our calculations show that the injection of deuteron beam simultaneously with laser beam irradiation to the desired spherical fuel capsule causes the bonus energy to be deposited in the fuel capsule and the energy gain increases depending on the amount of deuteron beam energy, and along with that injection of solid boron into D–D fuel increases the energy gain at 100 keV which is about 10 times. [ABSTRACT FROM AUTHOR]