Abstracts Brochure - CERN

THPLS — Poster Session 29-Jun-06 16:00 - 18:00
scheme has produced stimulus for an experiment at the SPARC injector at Frascati in 2006. We review preparations for
this experiment, and discuss the measurable quantities and their appropriate diagnosis, including the time-resolved
observation of ellipsoidal beam shape at low energy. A scheme based on gating of Cerenkov radiation produced at
an Aerogel for time-resolved measurements is proposed. Future measurements at high energy based on fs resolution
RF sweepers are discussed. The prospects for using the very low longitudinal emittance beam in a future bunch
compressor for producing 10 micron long beams are evaluated.
*O. J. Luiten et al. Physical Review Letters, 93, 094802-1 (2004).
Fast Kicker Systems for the SOLEIL Booster Injection and Extraction, with Full Solid-state
Pulsed Power Supplies
The Booster of SOLEIL needs injection and
extraction kicker systems with fast transition
times, good flat top and low jitter, to allow a
satisfactory injection efficiency of the Storage
P. Lebasque, M. Bol, C. Herbeaux, J.-P. Lavieville, J.L. Marlats
(SOLEIL)
Ring injection. So all the kicker systems have been optimised, to fulfil specifications and to permit the use of solid state
switching electronics. This contribution presents the ceramic vacuum chambers and magnets design, the specific
pulse forming scheme and the realisation of the pulsed power supplies working up to 20 kV. Electrical and magnetic
measurements results of kickers systems are given, and also its operation status from the first SOLEIL Booster injection
in July 2005.
Four Matched Kicker Systems for the SOLEIL Storage Ring Injection, a Full Solid State
Solution of Pulsed Power Supplies Working at High Current
The Top Up injection mode of the SOLEIL
Storage Ring needs a very good matching
of the four kicker magnet fields. But their
implantation inside the straight section ded-
P. Lebasque, R. Ben El Fekih, C. Herbeaux, J.-P. Lavieville, J.L.
Marlats (SOLEIL)
icated to SR injection imposed high level forces on each of the four kickers. This contribution describes the ceramic
vacuum chambers and magnets design optimised to provide a very good identity of the four magnets. The pulsed
power supplies, based on IGBT high voltage modules, designed to work at high current (5250 A-9000 V) could be
located outside the SR tunnel. We highlight the specific development on all components specification and electrical
scheme that permits to reach such a challenge. The electrical and magnetic measurement results are reported.
Eddy Current Septum Magnets for Booster Injection and Extraction and Storage Ring Injection
at Synchrotron SOLEIL
Eddy current thin septum magnets are used
to inject or extract the electron beam to/
from the Booster and to the Storage Ring of
SOLEIL. Good transverse homogeneity in the
P. Lebasque, J. Da Silva, P. Gros, J.-P. Lavieville, A. Mary, D. Muller
(SOLEIL)
gap for injected beam, and low leakage field on circulating beam is needed, as well as pulse stability. The Top Up
injection mode of the Storage Ring needs a very low level of leakage field on the stored beam path. Operating currents
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