Münster 2002 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 7: Instrumentation and Applications I
HK 7.3: Gruppenbericht
Montag, 11. März 2002, 17:15–17:45, F
First Successful Stopping, Bunching and Trapping of Radioactive Ions at the Ion Trap Facility SHIPTRAP at GSI Darmstadt — •W. Quint1,2,3,4, D. Ackermann1, F. Attallah1, H. Backe2, D. Beck1, A. Dretzke2, O. Engels3, D. Habs3, F. Herfurth4, F. Hessberger1, S. Hofmann1, H.-J. Kluge1, W. Lauth2, B. Lommel1, G. Marx1, G. Münzenberg1, M. Mukherjee1, J. Neumayr3, S. Rahaman1, D. Rodriguez1, C. Scheidenberger1, M. Sewtz2, G. Sikler1, M. Tarisien1, P. Thirolf3, V. Varentsov3, and C. Weber1 — 1GSI Darmstadt — 2Universität Mainz — 3Universität München — 4CERN
SHIPTRAP is an ion trap facility at the separator for heavy-ion reaction products (SHIP) at GSI. The scientific programme of the SHIPTRAP facility comprises mass spectrometry, nuclear spectroscopy, laser spectroscopy and chemistry of transeinsteinium elements. The SHIPTRAP facility consists of a gas cell for stopping and thermalizing high-energy recoil ions from SHIP, a rf ion guide for extraction of the ions from the gas cell, a linear rf trap for accumulation and bunching of the ions, and a Penning trap for isobaric purification. In first on-line tests we successfully stopped, accumulated and trapped radioactive nuclides which were produced in fusion reactions of a 40Ca primary beam with a cerium target. The radioactive nuclides were extracted from the ion trap and identified by time-of-flight detection. The total efficiency for stopping, accumulating and trapping the ions was about 1 %.