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Joakim

Joakim Cederkäll

Professor

Joakim

Determination of the isomeric fraction in a postaccelerated radioactive ion beam using the coupled decay-chain equations

Author

  • Andreas Ekström
  • Joakim Cederkäll
  • Douglas DiJulio
  • Claes Fahlander
  • J. Van de Walle

Summary, in English

A method based on the coupled decay-chain equations for extracting the isotopic and the isomeric composition of a postaccelerated radioactive ion beam is presented and demonstrated on a data set from a Coulomb excitation experiment. This is the first attempt of analyzing the content of a postaccelerated radioactive ion beam using this technique. The beam composition is required for an absolute normalization of the measurement. The strength of the method, as compared to present online-based methods, lies in the determination of the isomeric fraction of a partially isomeric beam using all data accumulated during the experiment. We discuss the limitations and sensitivity of the method with respect to the gamma-ray detection efficiency and the accumulated flux. (C) 2010 Elsevier B.V. All rights reserved.

Department/s

  • Nuclear physics

Publishing year

2010

Language

English

Pages

303-307

Publication/Series

Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

Volume

614

Issue

2

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Postaccelerated radioactive ion beam
  • Isomeric beam
  • Decay-chain
  • analysis
  • GEANT4

Status

Published

ISBN/ISSN/Other

  • ISSN: 0167-5087