Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP

[摘要] A new procedure to prepare isomerically clean samples of short-lived ions with a mass resolving power of more than 1 x 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. (c) 2008 Elsevier B.V. All rights reserved.

[发布日期] 2008-10-01

[效力级别]  Proceedings Paper

[关键词] Penning trap;Isobaric separation;Isomeric separation