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NKS-B GammaSem

Nordic seminar for users of gamma spectrometry

28th-29th September 2010, Kjeller, Norway


Organised by the Institute for Energy Technology (IFE), Risø National Laboratory for Sustainable Energy, Denmark; Radiation and Nuclear Safety Authority (STUK), Icelandic Radiation Safety Authority, National Institute of Radiation Protection, Denmark, Norwegian Radiation Protection Authority, Swedish Defence Research Agency, Malmö University Hospital, Sweden.


A Nordic seminar for users of gamma spectrometry took place in Norway 28-29 September 2010 with 65 participants. The seminar was the second seminar of this type and provided a forum for discussions and sharing of information on practical issues concerning gamma spectrometry. One of the aims of the seminars is to strengthen the Nordic collaboration through networking of scientists and gamma spectrometry users.


At GammaSem 2009 different key issues for follow-up were identified and working groups were established on various aspects of gamma spectrometry. The topics for the working groups formed the basis for the GammaSem 2010 agenda, where the groups presented results of their work and ideas/solutions to the different problems. The working group topics were

  • Uncertainties and detection limits
  • True coincidence summing corrections
  • Monte Carlo simulations and efficiency transfer
  • Absorption (density corrections and geometries)
  • Mobile systems for gamma spectrometry
  • Nuclear forensics (on special samples and special parts of the spectra)

In addition, Dr. Lars-Erik De Geer gave a presentation about the fundamentals of true coincidence summing correction and when/why it is important.


Contact person Elisabeth Strålberg (


Pdfs of all the presentations made at this workshop can be downloaded here.

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