Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP

Abstract

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.

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

References in corpus (1)

• The Ramsey method in high-precision mass spectrometry with Penning traps: Experimental results

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