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APS » Journals » Phys. Rev. Lett. » Volume 86 » Issue 8
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Phys. Rev. Lett. 86, 1466–1469 (2001)

Lifetime Measurements of Metastable States in Fe+

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D. Rostohar1, A. Derkatch2, H. Hartman3, S. Johansson3, H. Lundberg4, S. Mannervik1, L.-O. Norlin5, P. Royen2, and A. Schmitt6
1Atomic Physics, Stockholm University, S-104 05 Stockholm, Sweden
2Physics Department, Stockholm University, P.O. Box 6730, S-113 85 Stockholm, Sweden
3Atomic Spectroscopy, Department of Physics, Box 118, S-221 00 Lund, Sweden
4Department of Physics, Lund Institute of Technology, Box 118, S-221 00 Lund, Sweden
5Physics Department of Frescati, Royal Institute of Technology, S-104 05 Stockholm, Sweden
6Fachbereich Physik, Universität Kaiserslautern, D-67663 Kaiserslautern, Germany

Received 22 September 2000; published in the issue dated 19 February 2001

The lifetime of two metastable levels in Fe+ has been measured by laser probing of a stored ion beam. In the dense spectrum of Fe+, the metastable levels a6S5/2 and b4D7/2 were selected and their lifetimes were determined to be 230±30 and 530±30ms, respectively. The lifetimes are compared with previous theoretical results. Metastable lifetime measurements of Fe+ are of great importance for interpretation of spectra from astronomical objects. The present experiment opens for the possibilities to investigate lifetimes of metastable states in complex atomic ions, which have, so far, been unexplored.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.1466
DOI:
10.1103/PhysRevLett.86.1466
PACS:
32.70.Cs, 32.50.+d
 
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