Paper | Title | Page |
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TUP78 | Status of the Cryomodules and Cavities Development for the SPIRAL2 Superconducting Linac | 339 |
| - G. Olry, S. Blivet, N. Hammoudi, D. Longuevergne, F. Lutton, G. Martinet, G. Michel, H. Saugnac, P. Szott
IPN Orsay - P-E. Bernaudin, P. Bosland, G. Devanz, C. Madec, A. Perolat
CEA-Saclay
| |
| The French laboratories CEA/Saclay and IPN Orsay,
involved in the SPIRAL2 project, are now preparing the
final tests of the two qualifying cryomodules (called
respectively A for the beta 0.07 cavities and B for the beta
0.12 cavities) in order to start the series production in
2008. Each cryomodule A and B will be tested at 4.2 K
and nominal power (10 kW, CW).
This paper presents an update of the cryomodules and
cavities developments (first results at room temperature,
first assembly...) which have been presented in [1]. | |
TUP81 | Stiffened Medium Beta 704 MHZ Elliptical Cavity for a Pulsed Proton Linac | 347 |
| - P. Bosland, S. Chel, G. Devanz, Y. Gasser, P. Hardy, J. Plouin, J. -P. Poupeau, D. Roudier, B. Visentin
CEA-Saclay
| |
| Recent developments on high duty cycle high intensity
proton linac have used, in the high energy part, the
superconducting technology because it is considered to be
advantageous in terms of power consumption,
construction cost and beam loss. In the framework of the
European CARE/HIPPI program, we investigate different
options to use the same superconducting technology even
in the low energy part of the linac (from 5 MeV to 200
MeV). Different kind of superconducting structures (CH
structures, spoke or elliptical cavities) are necessary to
cover this whole energy range. Since the higher energy
part will be equipped with elliptical cavities, we propose a
704 MHz elliptical cavity which could be advantageously
used in the range 80 MeV up to 200 MeV. An optimized
design of this cavity for running in pulsed mode is
presented. The sensitivity of the cavity to pulsed RF is
investigated to assess the efficiency of the stiffening
scheme. | |
WEP53 | Operation of the SOLEIL RF system | 615 |
| - P. Marchand, H. Dias, M. Diop, M. ElAjjouri, J. Labelle, R. Lopes, M. Louvet, C. Monnot, F. Ribeiro, T. Ruan, R. Sreedharan, K. Tavakoli
SOLEIL, Gif-sur-Yvette - P. Bosland, P. Bredy, C. Madec
CEA/DSM/DAPNIA, Gif-sur-Yvette
| |
| The 352 MHz RF accelerating systems for the SOLEIL
Booster (BO) and Storage Ring (SR) are in operation
since mid 2006. In the BO, a 5-cell copper cavity of the
CERN-LEP type is powered with a 35 kW solid state
amplifier. In the SR, the required RF accelerating voltage
(up to 4.4 MV) and power (560 kW at full beam current
of 500 mA) will be provided by two cryomodules, each
containing a pair of superconducting cavities, specifically
designed for SOLEIL. The first cryomodule is operational,
while the second one, which is being constructed by
ACCEL (Germany), will be implemented in May 2008.
Both cryomodules are cooled down to 4.2 K with liquid
helium from a single 350 W liquefier and each cavity is
powered by a 180 kW solid state amplifier. Using a single
cryomodule and two amplifiers, the first objective of
storing 300 mA stable beam was successfully achieved in
2006. The RF system commissioning and operation
results are reported. | |