Bonn 2010 – wissenschaftliches Programm
HK 36.86: Poster
Mittwoch, 17. März 2010, 14:00–16:00, HG Aula
Development of an In-Trap Spectroscopy Setup at MLLTRAP for the Future Project MATS at FAIR* — •Peter Thirolf1, Eva Gartzke1, Dietrich Habs1, Veli Kolhinen2, Kevin Krug1, Daniel Rodriguez3, Jerzy Szerypo1, and Christine Weber1 — 1Fak. für Physik, LMU - München — 2Dep. of Physics, University of Jyväskylä — 3FAMN, Universidad de Granada
One of the most important achievements of Penning trap technology is the possibility to manipulate ions of a defined q/m in order to provide purified ion species to dedicated experiments, such as high-precision mass measurements. This feature of ion manipulation and purification is used as well in nuclear decay-spectroscopy experiments with isobarically or even isomerically pure samples, typically installed after the trap. In a further approach, the Penning trap itself is equipped with detectors, since the stored ion clouds represent ideal sources, free from any background or scattering effects in the required backing materials. An in-trap spectroscopy setup is developed at MLLTRAP to be implemented in the future MATS facility at the low-energy branch of FAIR/GSI. Here, the main trapping electrodes will be replaced by position-sensitive Si-strip detectors and emitted electrons are efficiently guided towards detectors by the strong field of the trap magnet. Possible physics experiments are conversion-electron spectroscopy and in-trap α-decay experiments of heavy actinides. In this presentation, the design of the setup and possible physics applications are presented.
[*] Supported by the BMBF (contract 06ML9148), DFG (contract HA 1101/14-1), and MLL.