Abstract

A lightweight, portable 15 MeV electron beam linear accelerator (LINAC) system has been developed for research applications. Our approach uses a commercial, off-the-shelf magnetron to drive an S-band standing-wave accelerator. The magnetron is driven by a Type-E pulse forming network (PFN), the modulator, switched with a thyratron. Within the modulator macropulse, short ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$&lt;$</tex-math> </inline-formula> 100 ns), high-frequency (up to 3500 Hz) electron beam pulses are produced by gating the electron current from a triode electron gun. The entire system is contained within approximately 2 m <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$^{3}$</tex-math> </inline-formula> , weighs 250 kg, and can be disassembled into two person-portable components, each weighing 50 kg or less.

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