Abstract

The design features of an induction electron accelerator which is under construction at the Lawrence Radiation Laboratory at Livermore, California, are described. The basic parameters are beam energy 4 Mev, beam current 200 amperes, pulse length 0.25 μsec, repetition rate 60 per second. The design beam quality is to be <10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup> radian-cm and the energy spread is to be ±0.5% during the useful part of the pulse. The accelerator consists of a gun whose output is 720 kev, followed by six modular units of 570-kev output each. Several unique components have been developed for use on this machine; among them are a 10-inch-diameter cathode and an accelerating column made of metal-ceramic seals 14 inches in diameter for use on the gun. This accelerator is being constructed for use in experiments on the "Astron" concept for heating and containing hot plasma.

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