The Rationale for an Expanded Inertial Fusion Energy Program

The rationale for an expanded effort on the development of inertial fusion as an energy source is discussed. It is argued that there should be a two-pronged, complementary approach to fusion energy development over the next two to three decades: (1) Magnetic Fusion (MFE) via ITER and the supporting magnetic domestic program and (2) Inertial Fusion (IFE), a credible, affordable approach that exploits unique US strengths and current world leadership. IFE is only a few years away from demonstration of single-shot ignition and fusion energy gain via NIF. Enhanced funding for IFE R&D is needed in the nearterm in order to prepare to expeditiously proceed beyond NIF to the energy application of inertial fusion.