Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP
✍ Scribed by T. Eronen; V.-V. Elomaa; U. Hager; J. Hakala; A. Jokinen; A. Kankainen; S. Rahaman; J. Rissanen; C. Weber; J. Äystö
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 229 KB
- Volume
- 266
- Category
- Article
- ISSN
- 0168-583X
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✦ Synopsis
A new procedure to prepare isomerically clean samples of short-lived ions with a mass resolving power of more than 1 Â 10 5 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.