Abstract
Absolute mass measurements of short-lived isotopes have been performed at the on-line mass separator ISOLDE at CERN by determining the cyclotron frequencies of ions confined in a Penning trap. The cyclotron frequencies for77,78,85,86,88Rb and88Sr ions could be determined with a resolving power of 3×105 and an accuracy of better than 10−6, which corresponds to 100 keV for massA=100. The shortest-lived isotope under investigation was77Rb with a half-life of 3.7 min. The resonances obtained for the isobars88Rb and88Sr were clearly resolved.
Similar content being viewed by others
References
M. Epherre, G. Audi, C. Thibault, R. Klapisch, G. Huber, F. Touchard and H. Wollnik, Phys. Rev. C19 (1979) 1504.
G. Audi, A. Coc, M. Epherre-Rey-Campagnolle, G. Le Scornet, C. Thibault and F. Touchard, Nucl. Phys. A449 (1986) 491.
ISOLDE Users Guide, ed. H.-J. Kluge, CERN, Geneva, CERN 86-05 (1986).
G. Gräff, H. Kalinowsky and J. Traut, Z. Phys. A297 (1980) 35.
R.S. van Dyck Jr., F.L. Moore, D.L. Farnham and P.B. Schwinberg, Int. J. Mass Spectrom. Ion Process, 66 (1985) 327.
H. Schnatz, G. Bollen, P. Dabkiewicz, P. Egelhof, F. Kern, H. Kalinowsky, L. Schweikhard, H. Stolzenberg, H.-J. Kluge and the ISOLDE Collaboration, Nucl. Instr. Meth. A251 (1986) 17.
R.E. Silverans, Leuven, Belgium, private communication, 1986.
H. Stolzenberg, diploma work, Mainz, 1987 (unpublished).
A.H. Wapstra and G. Audi, Nucl. Phys. A432 (1985) 1.
F. Buchinger, J.E. Crawford, R.B. Moore, L. Nikkinen, G. Rouleau and G. Thekkadath, Letter of Intent to the ISOLDE Committee, CERN, Geneva, 1986.
M.D.N. Lunney, S. Gulick, R.B. Moore and G. Rouleau, American Physical Society, General Meeting, April 1987, Crystal City, VA, (abstract submitted).
H.-J. Kluge, F. Ames, W. Ruster and K. Wallmeroth,Proc. Accelerated Radioactive Beam Workshop, Vancouver, Island, 1985, eds. L. Buchmann and J.M. D’Auria, TRIUMF Proceedings TRI-85-1 (1985), p. 119.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bollen, G., Dabkiewicz, P., Egelhof, P. et al. First absolute mass measurements of short-lived isotopes. Hyperfine Interact 38, 793–802 (1987). https://doi.org/10.1007/BF02394875
Issue Date:
DOI: https://doi.org/10.1007/BF02394875