| Paper |
Title |
Page |
| TUPCH111 |
RF System for the Superconducting Linac Downstream from DEINOS Injector
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1271 |
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- P. Balleyguier, J.-L. Lemaire
CEA, Bruyeres-le-Chatel
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The DEINOS injector will be followed by an accelerator consisting of a LEP-like cryomodule including four 4-cell superconducting cavities. Each of these cavities will be fed by a solid-state amplifier delivering 20 kW in CW operation at 352 MHz. We will use the technology developed by the "Synchrotron SOLEIL" RF team, consisting of merging the power of numerous independent 330 W modules. The design of the low level RF system will be based on our experience with the ELSA accelerator.
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| THPCH158 |
A Phased-locked S.A.M. Mode-locked Laser for the ELSA Photoinjector
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3164 |
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- V. Le Flanchec, P. Balleyguier
CEA, Bruyères-le-Châtel
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A new laser oscillator has been developed for the ELSA photoinjector. It is a fibered-diode-pumped mode-locked Nd:YVO4 laser, with a completely passive cooling design. Mode-locking is achieved by a saturable absorber mirror. Such a passive laser oscillator must be synchronized with the ELSA electron bunches. A phased-locked loop has been developed for that purpose. We present the main design aspects resulting from the high stability requirement of ELSA. The first electron spectra measurements show the high level of energy stability achieved. We also present improvements in the laser injection system leading to a higher transverse stability, a more uniform cathode illumination, and a better transmission of the whole system.
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| THPCH160 |
Theoretical Study and Experimental Result of the RF Coupler Prototypes of Spiral 2
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3170 |
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- Y. Gómez-Martínez, D. Bondoux, JM. Carretta, J.-M. De Conto, M. Fruneau, A. Garrigue, D. Marchand, R. Micoud, E. Vernay, F. Vezzu
LPSC, Grenoble
- P. Balleyguier
CEA, Bruyères-le-Châtel
- M. Di Giacomo
GANIL, Caen
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Spiral 2 is a 40 MeV superconducting linac under construction at GANIL. The RF couplers have to provide a 12 kW CW power to the cavities at 88 MHz. Two solutions corresponding to 2 different technologies have been designed and 2 prototypes have been built. We present the technical proposals and issues as well as the results (manufacturing, test at low and high power, multipacting…) leading to the final choice.
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