Implementation of a MR-ToF isobar separator at the mass spectrometer ISOLTRAP

R. Wolf; K. Blaum; C. Borgmann; M. Breitenfeldt; D. Fink; A. Herlert; M. Kowalska; S. Kreim; D. Lunney; G. Marx; S. Naimi; M. Rosenbusch; L. Schweikhard

Implementation of a MR-ToF isobar separator at the mass spectrometer ISOLTRAP

R. Wolf K. Blaum C. Borgmann M. Breitenfeldt D. Fink A. Herlert M. Kowalska S. Kreim D. Lunney ¹ G. Marx S. Naimi ¹ M. Rosenbusch L. Schweikhard

1 CSNSM SNO

CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse

Abstract : A multi-reflection time-of-flight mass separator (MR-ToF-MS) was installed at the ISOLTRAP/CERN mass spectrometer for isobaric purification of rare isotope ensembles as a preparation for precision mass determinations. The MR-ToF-MS consists of two ion optical mirrors between which ions are oscillating and are separated by their mass-over-charge ratio m/q. Flight paths of several hundreds of meters are folded to an apparatus length of less than one meter. Previous tests resulted in a mass resolving power of up to m/Δ m ≈ 105 and the separation was demonstrated for the isobaric ions CO+ and N2+. In combination with a Bradbury-Nielsen beamgate, the MR-ToF-MS will support the existing purification methods of the setup to gain access to nuclides produced with high isobaric contamination yields at the ISOLDE facility. The modified ISOLTRAP setup and its performance will be presented.

Document type :

Conference papers

Deutche Physikalische Gesellschaft (DPG) Spring meeting of the Atomic and Molecular Physics section, 2010, Hannover, Germany

Domain :

Physics / Nuclear Experiment

http://hal.in2p3.fr/in2p3-00762212
Contributor : Christine Hadrossek <>
Submitted on : Thursday, December 6, 2012 - 4:17:05 PM
Last modification on : Monday, October 13, 2014 - 3:43:25 PM

Implementation of a MR-ToF isobar separator at the mass spectrometer ISOLTRAP

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