International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators

4-8 May 2009, Vienna

The 600 MeV EUROTRANS Proton Driver Linac

H.J. Podlech¹, A. Bechtold¹, M. Busch¹, F. Dziuba¹, R. Tiede¹, H. Klein¹, U. Ratzinger¹, C.
Zhang¹, A.C. Mueller², J.-L. Biarrotte², G. Olry², T. Junquera², P. Pierini³, S. Barbanotti³, and N. Banzeri³

¹IAP, Goethe University, Frankfurt, Germany
²IPN Orsay, CNRS, France
³INFN Milano, Italy

Corresponding Author: h.podlech@iap.uni-frankfurt.de

Accelerator Driven Systems (ADS) for nuclear waste transmutation require proton drivers with energies between 600 and 800 MeV and beam currents of several mA for demonstrators and several 10 mA for a large industrial systems. The required operation is continous wave (cw) which prefers superconducting cavity technology. One major issue of these accelerators is reliability and fault tolerance to reduce the number of unwanted beam trips. Additionally, beam losses have to be minimized to avoid activation of the machine. The European activities are focused in the EUROTRANS project. The EUROTRANS driver linac has to deliver a 600 MeV proton beam with a maximum beam current of 4 mA but it is capable to accelerate up to 25 mA. In order to improve the overall reliability two 17 MeV, 352 MHz injectors are foreseen. Each injector consists of a 3 MeV RFQ, a r.t. CH-cavity and four s.c. CH cavities. The intermediate energy section (17—100 MeV) consists of independently phased superconducting spoke cavities.

It is followed by a high energy section with two groups of superconducting elliptical 5-cell cavities (704 MHz). The paper describes the present status of the reference design with respect to beam dynamics issues, prototype development and fault tolerance.

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