PAC09 - List of Authors (Lesrel, J.)

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Lesrel, J.

Paper	Title	Page
WE5PFP029	RF Power Coupler Developments for Superconducting Spoke Cavities at IPN Orsay	2055
	E. Rampnoux, S. Berthelot, P. Blache, S. Bousson, J. Lesrel, L. Lukovac, G. Olry IPN, Orsay
	Funding: EURISOL Project The development of RF power couplers for superconducting low-beta SPOKE cavities, performed at Nuclear Physics Institute in Orsay in the framework of the EURISOL Design Study, has led to the design of a 20 kW RF power coaxial coupler showing very good RF performances and the implementation of a test stand to condition two of these couplers at 20 kW CW power in the traveling wave mode at 352,2 MHz by using a half-wave resonant cavity. Composed by a ceramic disk, the coaxial power coupler developed shows on one hand a very good 50 ohms matching on a large bandwidth like 760 MHz, after an electromagnetic optimisation of the window area, and on the other hand a simplified design with regard to the classic coaxial couplers. Characteristics of the power coupler and the test stand will be described, and the low RF power test of the coaxial window and the conditioning at high RF power of two couplers will be presented.

Paper

Title

Page

WE5PFP029

RF Power Coupler Developments for Superconducting Spoke Cavities at IPN Orsay

2055

E. Rampnoux, S. Berthelot, P. Blache, S. Bousson, J. Lesrel, L. Lukovac, G. Olry
IPN, Orsay

Funding: EURISOL Project

The development of RF power couplers for superconducting low-beta SPOKE cavities, performed at Nuclear Physics Institute in Orsay in the framework of the EURISOL Design Study, has led to the design of a 20 kW RF power coaxial coupler showing very good RF performances and the implementation of a test stand to condition two of these couplers at 20 kW CW power in the traveling wave mode at 352,2 MHz by using a half-wave resonant cavity. Composed by a ceramic disk, the coaxial power coupler developed shows on one hand a very good 50 ohms matching on a large bandwidth like 760 MHz, after an electromagnetic optimisation of the window area, and on the other hand a simplified design with regard to the classic coaxial couplers. Characteristics of the power coupler and the test stand will be described, and the low RF power test of the coaxial window and the conditioning at high RF power of two couplers will be presented.