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Improvement of beam emittance of the CEA high intensity proton source SILHI

1999; American Institute of Physics; Volume: 70; Issue: 6 Linguagem: Inglês

10.1063/1.1149823

1527-2400

R. Gobin, P.-Y. Beauvais, R. Ferdinand, P. Leroy, L. Celona, G. Ciavola, S. Gammino,

Superconducting Materials and Applications

The emittance of the intense proton beam extracted by the source SILHI at Commisariat à l’Energie Atomique (CEA)-Saclay is a key parameter for the design of the IPHI Project RFQ. This parameter has a relevant role even for the design of an intense proton source for the TRASCO project of Istituto Nazionale di Fisica Nucleare (INFN). The tests performed in the framework of CEA-INFN collaboration have been mainly devoted to a 75 mA beam emittance investigation injecting different gases in the beam line. The results show that the rms normalized emittance decreases up to a factor 3 while the beam losses induced by recombination are contained within 5%. Normalized emittance in r-r′ plane of about 0.1 π min mrad have been obtained using Ar and Kr.