RF cavity design for a low cost 1 MeV proton source

Soriano Guillen, D., Seviour, Rebecca and Hunt, S. (2017) RF cavity design for a low cost 1 MeV proton source. In: Proceedings of IPAC 17. JACoW, pp. 4355-4357. ISBN 9783954501823

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Abstract

In this paper we present the design for a low-cost RF cavity capable of accelerating protons from 100 keV to 1 MeV. The system is designed to meet the specifications from the proposed Alceli LTD medical proton therapy linac, to deliver a 1 nA proton beam current with a 1 kHz repetition rate.
We present a design of an RF normal conducting (NC) re-entrant Cu cavity operating at 40MHz consisting of a coupled two cavity system, both driven by a single Marx generator. The choice of such a low operating frequency for the cavity system enables us to use a relatively low-cost
cost Marx Generator as the RF source. Marx generators work in a similar fashion to a Cockcroft-Walton accelerator (without the expensive components), creating a high-voltage
pulse by charging a number of capacitors relatively slowly in parallel, then rapidly discharging in series, via spark gaps.
Marx generators can deliver 2.5GW, 1 ns pulses, with rise times of 200 ps, and (relatively) low jitter.

Item Type:	Book Chapter
Subjects:	Q Science > QC Physics T Technology > T Technology (General)
Schools:	School of Computing and Engineering School of Computing and Engineering > International Institute for Accelerator Applications
Related URLs:	Author Conference Publisher
Depositing User:	Rebecca Seviour
Date Deposited:	13 Jun 2017 12:53
Last Modified:	27 Mar 2018 13:45
URI:	http://eprints.hud.ac.uk/id/eprint/32154

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