Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP

Details Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP

2008-01-18

arxiv.org/abs/0801.2904v1

Nucl.Instrum.Meth.B266:4527-4531,2008

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 7 figures, submitted to EMIS2007 Conference proceedings, Nucl. Instrum. Meth. Phys. Res. B (2007)

Scientific paper

10.1016/j.nimb.2008.05.076

A new procedure to prepare isomerically clean samples of ions with a mass resolving power of more than 100,000 has been developed at the JYFLTRAP tandem Penning trap system. The method utilises a dipolar rf-excitation of the ion motion with separated oscillatory fields in the precision trap. During a subsequent retransfer to the purification trap, the contaminants are rejected and as a consequence, the remaining bunch is isomerically cleaned. This newly-developed method is suitable for very high-resolution cleaning and is at least a factor of five faster than the methods used so far in Penning trap mass spectrometry.

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