Abstract
Preliminary experimental results are shown on pulsed ion-beam generation by a reflex-triode scheme with a laser-produced anode plasma. An aluminum ion-beam maximum ion energy of about 3 MeV and peak ion-beam current of 100–200 A has been extracted mainly to the virtual-cathode side, by irradiating a Nd-glass laser with relatively low output energy (3–5 J) onto the virtual-cathode side of aluminum-foil anode surface. In addition, employing a mesh-anode, the existence of an optimum delay-time from laser-irradiation to the rise of anode voltage (∼220 ns in the present experiments) has been demonstrated.
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