TY - GEN
T1 - Injection/extraction kicker for the ALS-U project
AU - De Santis, S.
AU - Barry, W.
AU - Kwiatkowski, S.
AU - Luo, T.
AU - Pappas, C.
AU - Reginato, L.
AU - Robin, D.
AU - Steier, C.
AU - Sun, C.
AU - Tarawneh, H.
AU - Waldron, W. L.
N1 - Publisher Copyright:
Copyright © 2014 CC-BY-3.0 and by the respective authors.
PY - 2014/7/1
Y1 - 2014/7/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84928328440&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84928328440
T3 - IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference
SP - 1977
EP - 1979
BT - IPAC 2014
PB - Joint Accelerator Conferences Website (JACoW)
T2 - 5th International Particle Accelerator Conference, IPAC 2014
Y2 - 15 June 2014 through 20 June 2014
ER -