• Open Access

Design and optimization of Compact Linear Collider main linac accelerating structure

Hao Zha and Alexej Grudiev
Phys. Rev. Accel. Beams 19, 111003 – Published 16 November 2016

Abstract

The Compact Linear Collider (CLIC) main linac uses waveguide damped structure as its baseline design. The current baseline structure design written in the CLIC Conceptual Design Report is named “CLIC-G.” Recent activities on the CLIC-G design including high power tests on structure prototypes and the study of machining cost assessment had raised the need of reoptimizing the structure design to minimize the machining cost and the pulse surface temperature rise. This work presents optimization of the structure geometry, high-order-mode (HOM) damping loads and the design of a HOM-free power splitter for the input coupler. Compared to the current baseline design CLIC-G, the new structure design reduced the pulse surface temperature rise, input power and manufacturing cost and achieves better suppression to the long range transverse wakefield. Cell disks and damping loads for the new structure design are also more compact than those of the CLIC-G design.

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  • Received 6 July 2016

DOI:https://doi.org/10.1103/PhysRevAccelBeams.19.111003

Published by the American Physical Society 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

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

Hao Zha and Alexej Grudiev*

  • CERN, European Organization for Nuclear Research, Geneva 1211, Switzerland

  • *alexej.grudiev@cern.ch

Article Text

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Issue

Vol. 19, Iss. 11 — November 2016

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