Abstracts Brochure - CERN

THPCH — Poster Session 29-Jun-06 16:00 - 18:00
The SPS Fast Extraction Kicker System in LSS6
A new fast extraction has been set up in SPS
LSS6 to transfer 450 GeV/c protons as well
as ions to Ring 1 of the LHC, via the transfer
line TI 2. The system includes four travelling
L. Ducimetière, F. Caspers, P. Faure, E.H.R. Gaxiola, T. Kroyer, E.
Vossenberg (CERN)
wave kicker magnets, recuperated from earlier installations and upgraded to fit the new application. All four magnets
are powered in series, energised by a single PFN generator and terminated by a short circuit. The layout and the
modifications to the magnets and the high voltage circuit are described along with the impact of design choices on the
performance of the system. Results from laboratory tests and first machine experience are reported on approaches to
overcome the effects of the beam induced kicker heating observed earlier, including a beam screen in form of metallic
stripes printed directly onto the ferrites and the use of ferrite blocks with high Curie temperature. Prospects for
further improvements are briefly discussed.
The Upgrading of the TLS Injector Bumper and Septum Power Supplies for Top-up Operation
Due to the inevitable requirement of routine
top-up mode operation at TLS (Taiwan Light
Source), the reliability of all components in
TLS injector has been reevaluated in the past
C.-S. Fann, K.-T. Hsu, S.Y. Hsu, J.-Y. Hwang, K.-K. Lin, K.-B. Liu,
Y.-C. Liu (NSRRC)
several months. Among all possible subsystems to be reinforced, the bumper and septum power supplies revealed
urgent need of upgrading while operated continuously in the user shifts. In this report, the modification of the
charging mechanism of the pulsed power supplies is described. The modular feature of the newly built units
provides fast replacement capability in case of components failure. The unified specifications for all components have
greatly reduced the effort in preparing spare parts. The test results of these units are presented in this report.
Pulse Modulator with Solid State Switch for Linac Injector
Existing modulators for high voltage supply
injector systems of technological accelerators
are based on the thyratrons. Using of IGBT
transistors as the switch, alongside with im-
S.M. Shkirida, V.I. Beloglazov, A. Dovbnya, E.A. Homyakov, A.I.
Kosoy, V.A. Tsymbal, Y.D. Tur (NSC/KIPT)
provement of the characteristics of the modulator, allow to decide modulator durability. The results of design and
testing of high-voltage power source prototype on 25 kV for injector of accelerator are presented.
Solid State Modulators for the International Linear Collider (ILC)
Diversified Technologies, Inc. (DTI) is developing
two solid-state modulator designs for
the International Linear Collider with SBIR
funding from the U.S. Department of Energy.
M.A. Kempkes, F.O. Arntz, N. Butler, J.A. Casey, M.P.J. Gaudreau
(Diversified Technologies, Inc.)
This paper will discuss design tradeoffs, energy storage requirements and alternatives, and the construction and test
status of both ILC designs. The first design is a 150 kV hard switch, employing an innovative energy storage system,
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