6–7 MeV characteristic γ-ray source using a plasma opening switch and a Marx bank

A 640 kV Marx bank and plasma opening switch (POS) produce an intense pulse of MeV protons that stop in a fluorine-bearing target. The ¹⁹F(p,αγ)¹⁶O reaction produces 6- to 7-MeV characteristic γ-rays that can induce fission reactions in fissionable materials, such as depleted uranium (DU). Some fission reactions are also induced by neutrons generated by proton and/or deuteron reactions in the target, indicating that this system could be used to produce a mixed source of γ-rays and neutrons. Experimental results are presented, and future options are described to improve this kind of mixed source.