Showing papers by "Lutz Schweikhard published in 1991"
TL;DR: In this paper, a new cooling technique for heavy ions stored in a Penning trap was developed, where axial and cyclotron motions were cooled by buffer gas collisions, and the outward radial diffusion caused by the buffer gas was counteracted by an azimuthal quadrupole rf field.
496 citations
132 citations
TL;DR: In this paper, the theoretical basis of the recently introduced quadrupole detection Fourier transform-ion cyclotron resonance technique is developed by use of the concept of image charges induced in the detection electrodes.
26 citations
TL;DR: In this article, doublet mass measurements of the isobars28Si3 and 12C7 were performed by using a Penning trap mass spectrometer and the Fourier transform ion cyclotron resonance (FT-ICR).
Abstract: Doublet mass measurements of the isobars28Si3 and12C7 are performed by use of a Penning trap mass spectrometer and the Fourier transform ion cyclotron resonance (FT-ICR). The carbon and silicon cluster ions are produced by laser ablation. Results of these preliminary measurements are presented.
12 citations
TL;DR: The use of a Penning trap for mass determination of highly charged ions was proposed in this article, where the long storage time of the ions in combination with a controlled confinement in a very small volume enabled accuracies in mass determination better than 10-8.
Abstract: The use of a Penning trap will start a new generation of precision experiments on highly charged ions. The long storage time of the ions in combination with a controlled confinement in a very small volume will enable accuracies in mass determination better than δm/m = 10-8.
1 citations