Published December 2007 | Version v1
Journal article

Isomeric states in 214Th and 213Th

  • 1. St. Petersburg State University, Stari Peterhof, St. Petersburg (Russian Federation)
  • 2. Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany)
  • 3. Johann Wolfgang Goethe-Universitaet, Institut fuer Kernphysik, Frankfurt am Main (Germany)
  • 4. Comenius University, Department of Nuclear Physics and Biophysics, Bratislava (Slovakia)
  • 5. Japan Atomic Energy Agency, Tokai, Ibaraki (Japan)

Description

Isomeric states in 214Th and 213Th were identified by means of γ-rays measured in delayed coincidence with the implanted evaporation residues. These were produced in irradiations of 164Dy with 54Cr projectiles and separated in-flight by the velocity filter SHIP. An isomeric state of Iπ=8+ with a half-life of (1.24±0.12) μs was identified in 214Th. The configuration π[1h9/2 x 2f7/2] was assigned to this state. An isomeric state with a half-life of (1.4±0.4) μs was observed in 213Th. Tentatively it was assigned to an Iπ=13/2+ state. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2007-10512-5

Additional details

Identifiers

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
34
Journal Issue
4
Journal Page Range
p. 355-361
ISSN
1434-6001