A CYLINDRICAL PENNING TRAP FOR CAPTURE, MASS-SELECTIVE COOLING, AND BUNCHING OF RADIOACTIVE ION-BEAMS

Citation
H. Raimbaulthartmann et al., A CYLINDRICAL PENNING TRAP FOR CAPTURE, MASS-SELECTIVE COOLING, AND BUNCHING OF RADIOACTIVE ION-BEAMS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 126(1-4), 1997, pp. 378-382
Citations number
11
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
ISSN journal
0168583X
Volume
126
Issue
1-4
Year of publication
1997
Pages
378 - 382
Database
ISI
SICI code
0168-583X(1997)126:1-4<378:ACPTFC>2.0.ZU;2-E
Abstract
A Penning trap ion accumulator, cooler, and buncher for low-energy ion beams has been developed for the ISOLTRAP mass spectrometer at ISOLDE /CERN. A cylindrical electrode configuration is used for the creation of a nested trapping potential. This is required for efficient accumul ation of externally produced ions and for high-mass selectivity by buf fer gas cooling. The design goal of a mass resolving power of about 1 x 10(5) has been achieved, Isobar separation has been demonstrated for radioactive rare-earth ion beams delivered by the ISOLDE on-line mass separator.