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Joakim

Joakim Cederkäll

Professor

Joakim

Two level scheme solvers for nuclear spectroscopy

Author

  • Kaj Jansson
  • Douglas DiJulio
  • Joakim Cederkäll

Summary, in English

A program for building level schemes from gamma-spectroscopy coincidence data has been developed. The scheme builder was equipped with two different algorithms: a statistical one based on the Metropolis method and a more logical one, called REMP (REcurse, Merge and Permute), developed from scratch. These two methods are compared both on ideal cases and on experimental gamma-ray data sets. The REMP algorithm is based on coincidences and transition energies. Using correct and complete coincidence data, it has solved approximately half a million schemes without failures. Also, for incomplete data and data with minor errors, the algorithm produces consistent sub-schemes when it is not possible to obtain a complete scheme from the provided data. (C) 2011 Elsevier B.V. All rights reserved.

Department/s

  • Nuclear physics

Publishing year

2011

Language

English

Pages

496-501

Publication/Series

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

Volume

654

Issue

1

Document type

Journal article

Publisher

Elsevier

Topic

  • Accelerator Physics and Instrumentation

Keywords

  • Coincidence matrix
  • Computer algorithm
  • Level scheme solver
  • Nuclear
  • gamma-ray spectroscopy

Status

Published

ISBN/ISSN/Other

  • ISSN: 0167-5087