Effects of space charge on the mass purification in Penning traps

Herlert, Alexander ; Borgmann, Christopher ; Fink, Daniel ; Holm Christensen, Christian ; Kowalska, Magdalena ; Naimi, Sarah

In: Hyperfine Interactions, 2011, vol. 199, no. 1-3, p. 211-220

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    The influence of space charge on the mass selection of ions stored in a Penning trap was investigated with the ISOLTRAP experiment at CERN/ISOLDE. A mixture of 85,87Rb +  ions has been used to probe the change of the experimental parameters, e.g. frequencies and amplitudes of the radiofrequency excitations, as a function of the number of ions present in the trap