First Observation of Multiply Charged Vanadium Clusters in a Penning Trap

✍ Scribed by Stefan Krückeberg; Peter Beiersdorfer; Götz Dietrich; Klaus Lützenkirchen; Lutz Schweikhard; Clemens Walther

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 116 KB
• Volume: 11
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(199703)11:5<455::aid-rcm887>3.0.co;2-y

✦ Synopsis

Singly charged vanadium cluster ions from an external laser-vaporization source are accumulated in a Penning trap. They are subjected to electron bombardment which leads to further ionization. The charge states produced are analyzed by time-of-flight mass spectrometry after axial ejection from the trap. The results include the observation of charge states up to z = 6 and indications for signals at z = 7 and 8. Clusters of a given charge state may be selected for further investigation adding a new dimension to future studies of stored cluster ions.