Extension of Penning-trap mass measurements to very short-lived nuclides

摘要

Mass measurements on Ar-33,Ar-34.42,Ar-43 have been performed at the ISOLTRAP spectrometer. An accuracy of deltam approximate to 4 keV has been achieved for all measured isotopes, With Ar-33 it is the first Lime that a nuclide with a half-life shorter than one second has been investigated using a Penning trap. This became possible due to the recently installed linear radio-frequency ion-trap system and an improved, faster measurement cycle. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 9]