Heidelberg 2015 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 7: Ion Storage Rings
MS 7.5: Vortrag
Mittwoch, 25. März 2015, 12:00–12:15, PH/HS2
Development of a Transversely Sensitive Resonant Schottky Pickup for the CR@FAIR — •Xiangcheng Chen1,2, Shahab Sanjari1, Jeremi Piotrowski2,3, Peter Hülsmann1, Yuri Litvinov1,4, Fritz Nolden1, Markus Steck1, and Thomas Stöhlker1,5 — 1GSI, Darmstadt — 2Uni. HD, Heidelberg — 3AGH Univeristy of Science and Technology, Krakow, Poland — 4MPI-K, Heidelberg — 5HIJ, Jena
The prospective FAIR facility will offer unprecedented opportunities to extend atomic and nuclear physics research programs with its high-energy and high-intensity heavy ion beams. For instance, the Collector Ring (CR) will be best suitable for addressing mass and lifetime measurements of rare isotopes when it is operating in the isochronous ion-optical mode. However due to the large acceptance of the CR the non-isochronicity effect still exists, which limits the measurement precision. The determination of particle positions in addition to their revolution frequencies is required to enhance the mass resolving power. In this contribution, we present a novel design of a transversely sensitive resonant Schottky pickup for the CR. It is an elliptical pillbox-cavity with an off-centred beam pipe, and works in the monopolar eigenmode. Based on the simulations and offline tests, its feasibility of coping with different beam parameters of the CR is also discussed.