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HK: Physik der Hadronen und Kerne
HK 12: Poster Session: Instrumentation and Applications
HK 12.10: Poster
Dienstag, 9. März 2004, 13:30–15:30, Foyer
Comissioning results of the REX-ISOLDE linac — •Stephan Emhofer1, Dietrich Habs1, Oliver Kester1, Matteo Pasini1, and Thomas Sieber2 — 1Sektion Physik der Ludwig-Maximilians-Universität München; Am Coulombwall 1, D-85748 Garching — 2CERN, CH-1211 Geneva 23
At REX-ISOLDE at the ISOLDE-facility of CERN radioactive ions are post accelerated with a 10 meter linac for experiments in nuclear-, astro- and solid state physics. For the efficient acceleration to energies between 0.8 and 3.1 MeV/u the principles of charge breeding of radioactive ions by an electron beam source was introduced at REX. The linac in its current stage consists of a 4-rod RFQ, a re-buncher, a 20-gap IH-drift-tube-cavity, three seven-gap-splitring resonators and one nine-gap-IH cavity. The linac and its beam transport system is able to accelerate ions up to a mass to charge ratio of 4.5 in its current stage. Commissioning measurements of the linac were made and will be presented and compared to the results of simulations, showing the current energy spreads and radial emittances of the different cavities. This work is supported by BMBF under contract 06ML185, 06ML186I and by the EU under HPRI-CT-1999-00018.