Novel target design for a laser-driven aneutronic fusion reactor

Abstract

This paper discusses the suitability of proton sources and the appropriate targets for lithium-proton and boron-proton fusion reactions. Protons are emitted by a hydrogen-based source that is exposed to an intense laser beam. The protons are sent onto lithium or boron targets where fusion reactions are triggered. A comparison is made between solid, liquid and gaseous proton sources and the required laser intensity. Furthermore, the main characteristics of the lithium and boron targets are assessed. It is shown that a hybrid target made of lithium and boron offers opportunities to considerably enhance the fusion yield.