Göttingen 1997 – wissenschaftliches Programm
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HK: Hadronen und Kerne
HK 9: Beschleuniger
HK 9.7: Vortrag
Montag, 24. März 1997, 16:15–16:30, HS K
The front part of the REX-ISOLDE accelerator — •O. Kester1, F. Ames2, G. Bollen3, D. Habs1, G. Hinderer4, L. Liljeby5, E. Nolte4, H. Raimbault-Hartmann3, U. Ratzinger6, H. Ravn3, K.G. Rensfelt5, R. Repnow7, K. Rudolph1, A. Schempp8, D. Schwalm7, P. van Duppen9, R. von Hahn7, and G. Walter10 — 1LMU München, D-85748 Garching — 2Gutenberg-Universität, D-55099 Mainz — 3CERN, CH-1211 Geneva 23, Switzerland — 4TU München, D-85748 Garching — 5MSI, S-10405 Stockholm, Sweden — 6GSI, D-64220 Darmstadt — 7MPI für Kernphysik, D-69029 Heidelberg — 8Goethe-Universität Frankfurt, D-60325 Frankfurt/M — 9K.U. Leuven, B-3001 Leuven, Belgium — 10Universite Louis Pasteur, F-67037 Strasbourg, France
REX-ISOLDE uses post-accelerated radioactive ion beams to study the structure of neutron-rich nuclei (N=20, N=28) [1]. Therefore radioactive ions with charge state 1+ delivered by ISOLDE/CERN, are accelerated up to 2.2 MeV/u by means of a new concept. The radioactive ions are first accumulated in a Penning trap, then charge breeded to a charge-to-mass ratio of 1/4.5 in an Electron Beam Ion Source (EBIS) and finally accelerated in a small LINAC. The injection beam line and the front part of the LINAC consisting of a Radio Frequency Quadrupole (RFQ) a matching section and an interdigital H-type structure (IH) are presented. For the design of the structures an injection energy of 5 keV/u and a final energy between 1.1 and 1.2 MeV/u are assumed.
[1] CERN-ISC94-25