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Abstracts Brochure - CERN

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THPLS — Poster Session 29-Jun-06 16:00 - 18:00<br />

scheme has produced stimulus for an experiment at the SPARC injector at Frascati in 2006. We review preparations for<br />

this experiment, and discuss the measurable quantities and their appropriate diagnosis, including the time-resolved<br />

observation of ellipsoidal beam shape at low energy. A scheme based on gating of Cerenkov radiation produced at<br />

an Aerogel for time-resolved measurements is proposed. Future measurements at high energy based on fs resolution<br />

RF sweepers are discussed. The prospects for using the very low longitudinal emittance beam in a future bunch<br />

compressor for producing 10 micron long beams are evaluated.<br />

*O. J. Luiten et al. Physical Review Letters, 93, 094802-1 (2004).<br />

Fast Kicker Systems for the SOLEIL Booster Injection and Extraction, with Full Solid-state<br />

Pulsed Power Supplies<br />

The Booster of SOLEIL needs injection and<br />

extraction kicker systems with fast transition<br />

times, good flat top and low jitter, to allow a<br />

satisfactory injection efficiency of the Storage<br />

P. Lebasque, M. Bol, C. Herbeaux, J.-P. Lavieville, J.L. Marlats<br />

(SOLEIL)<br />

Ring injection. So all the kicker systems have been optimised, to fulfil specifications and to permit the use of solid state<br />

switching electronics. This contribution presents the ceramic vacuum chambers and magnets design, the specific<br />

pulse forming scheme and the realisation of the pulsed power supplies working up to 20 kV. Electrical and magnetic<br />

measurements results of kickers systems are given, and also its operation status from the first SOLEIL Booster injection<br />

in July 2005.<br />

Four Matched Kicker Systems for the SOLEIL Storage Ring Injection, a Full Solid State<br />

Solution of Pulsed Power Supplies Working at High Current<br />

The Top Up injection mode of the SOLEIL<br />

Storage Ring needs a very good matching<br />

of the four kicker magnet fields. But their<br />

implantation inside the straight section ded-<br />

P. Lebasque, R. Ben El Fekih, C. Herbeaux, J.-P. Lavieville, J.L.<br />

Marlats (SOLEIL)<br />

icated to SR injection imposed high level forces on each of the four kickers. This contribution describes the ceramic<br />

vacuum chambers and magnets design optimised to provide a very good identity of the four magnets. The pulsed<br />

power supplies, based on IGBT high voltage modules, designed to work at high current (5250 A-9000 V) could be<br />

located outside the SR tunnel. We highlight the specific development on all components specification and electrical<br />

scheme that permits to reach such a challenge. The electrical and magnetic measurement results are reported.<br />

Eddy Current Septum Magnets for Booster Injection and Extraction and Storage Ring Injection<br />

at Synchrotron SOLEIL<br />

Eddy current thin septum magnets are used<br />

to inject or extract the electron beam to/<br />

from the Booster and to the Storage Ring of<br />

SOLEIL. Good transverse homogeneity in the<br />

P. Lebasque, J. Da Silva, P. Gros, J.-P. Lavieville, A. Mary, D. Muller<br />

(SOLEIL)<br />

gap for injected beam, and low leakage field on circulating beam is needed, as well as pulse stability. The Top Up<br />

injection mode of the Storage Ring needs a very low level of leakage field on the stored beam path. Operating currents<br />

475<br />

THPLS099<br />

THPLS100<br />

THPLS101

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