• Open Access

Beam dynamics design of a new radio frequency quadrupole for beam-current upgrade of the Japan Proton Accelerator Research Complex linac

Yasuhiro Kondo, Kazuo Hasegawa, Takatoshi Morishita, and Robert A. Jameson
Phys. Rev. ST Accel. Beams 15, 080101 – Published 23 August 2012

Abstract

We have performed the beam-dynamics design of an H radio frequency quadrupole (RFQ) for the beam-current upgrade of the Japan Proton Accelerator Research Complex linac (RFQ III). LINACSrfqDES was set up to support the conventional design method, i.e., design with CURLI-type shaper followed by constant bore radius and with constant intervane voltage, supplemented by keeping the equipartitioned condition in the gentle buncher section. For the particle simulation, LINACSrfqSIM was used. The obtained transmission, transverse and longitudinal emittance are 98.5%, 0.21πmmmrad, and 0.11πMeVdeg for the input beam current of 60 mA and normalized rms emittance of 0.20πmmmrad. This design satisfies the requirements of RFQ III.

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  • Received 5 July 2012

DOI:https://doi.org/10.1103/PhysRevSTAB.15.080101

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Authors & Affiliations

Yasuhiro Kondo*, Kazuo Hasegawa, and Takatoshi Morishita

  • Japan Atomic Energy Agency (JAEA), Tokai, Naka, Ibaraki, 319-1195, Japan

Robert A. Jameson

  • Institüt Angewandte Physik, Goethe-Universität Frankfurt, Frankfurt am Main D60438, Germany

  • *yasuhiro.kondo@j-parc.jp

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Vol. 15, Iss. 8 — August 2012

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