Injection/extraction kicker for the ALS-U project

S. De Santis, W. Barry, S. Kwiatkowski, T. Luo, C. Pappas, L. Reginato, D. Robin, C. Steier, C. Sun, H. Tarawneh, W. L. Waldron

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

The ALS-U project consists in the upgrade of the existing Advanced Light Source at LBNL to a new ultra-low emittance lattice for production of diffraction-limited soft x-rays. In order to compensate for the reduced beam lifetime we intend to operate the machine in continuous topoff mode, where one of several bunch trains is extracted every 30-60 seconds and swapped with a fresh train from the accumulator ring, which is injected on axis without perturbing the circulating beam. In this paper we present our design for the injection/extraction kicker based on matched stripline electrodes. Such kicker has to provide the necessary deflection for simultaneously extracting a bunch train and injecting on-axis a fresh one from the accumulator ring. Rise and fall times must fit in the gap between bunch trains so that the injection/extraction process does not affect the remaining bunches. The main parameters of such a kicker are discussed with particular emphasis on the minimum gap length between trains, which also affects other machine subsystems.

Original languageEnglish
Title of host publicationIPAC 2014
Subtitle of host publicationProceedings of the 5th International Particle Accelerator Conference
PublisherJoint Accelerator Conferences Website (JACoW)
Pages1977-1979
Number of pages3
ISBN (Electronic)9783954501328
StatePublished - Jul 1 2014
Externally publishedYes
Event5th International Particle Accelerator Conference, IPAC 2014 - Dresden, Germany
Duration: Jun 15 2014Jun 20 2014

Publication series

NameIPAC 2014: Proceedings of the 5th International Particle Accelerator Conference

Conference

Conference5th International Particle Accelerator Conference, IPAC 2014
Country/TerritoryGermany
CityDresden
Period06/15/1406/20/14

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