1. The use of energetic helium atoms for heating toroidal systems
2. “Exploratory Studies of High-Efficiency Advanced-Fuel Fusion Reactors,” EPRI ER-581, Project RP 645, Annual Report, Electric Power Research Institute (1977).
3. D.J. SANTELER, D.W. JONES, D.H. HOLKEBOER, and F. PAGANO, “Vacuum Technology and Space Simulation,” NASA SP-105, U.S. Government Printing Office (1966).
4. M.A. HOFFMAN and A.S. BLUM, “A Cryotrapping Vacuum Pumping System Design for a Helium Neutral Beam Injector,” UCRL-82006, Lawrence Livermore National Laboratory (1978).
5. A.S. BLUM et al. “120 keV Helium-3 Neutral Beam Injector: Design Considerations,” UCRL-80904, Lawrence Livermore National Laboratory (1978).