Gw2011 programme

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Gamma Workshops 2011 - Programme

Lectures and other course material

A special non-public web page has been created for distribution of course material. Information on this page has been sent to registered participants. Please contact Sigurður Emil Pálsson, sep@gr.is, if you are registered and have not received information concerning this page with course material.

Monday

  • 10:00-11:30  : Registration
  • 11:30-13:00  : Lunch
  • 13:00-13:10  : Welcome and practical information: Matrix and absorption corrections
  • 13:10-13:30  : Methods for characterizing detectors and samples (Tim Vidmar)
  • 13:30-14:00  : External source method (Elisabeth Strålberg)
  • 14:00-14:30  : Efficiency method – general introduction (Tim Vidmar)
  • 14:30-14:45  : Coffee
  • 14:45-14:55  : Proof-of-principle (Tim Vidmar)
  • 14:55-15:05  : Description of a study testifying to the equivalence of the available efficiency transfer codes (Tim Vidmar)
  • 15:05-15:25  : Demonstration of the EFFTRAN code and its application to self-absorption (Tim Vidmar)
  • 15:25-15:35  : Treatment of the Marinelli beaker geometry (Sima method) (Sigurður Emil Pálsson)
  • 15:35-15:45  : Coffee
  • 15:45-17:00  : Practical computer work, three exercises (Tim Vidmar), including short descriptions of the codes:
  1. Density and composition correction – same geometry of sample and standard
  2. Full extended-source-to-extended source transfer
  3. Point source to extended source transfer
  • 17:00-17:30  : Discussions - questions
  • 19:30  : Dinner in Roskilde


Tuesday

True Coincidence Summing corrections

  • 09:00-09:45  : General introduction to TCS – (Menno Blaauw)
  • 10:00-10:45  : General introduction to TCS (cont.)
  • 11:00-11:45  : General introduction to TCS (cont.)
  • 11:45-12:30  : Lunch
  • 12:30-13:15  : Introduction to other softwares for TCS corrections (Tim Vidmar)
  • 13:30-14:15  : Parallel sessions - software specific – Genie (Gerhard Fritz) and GammaVision (Menno Blaauw)
  • 14:30-15:15  : Parallel sessions - software specific, practical work (all lecturers)
  • 15:30-17:30  : End of Tuesday's workshop – summing up, and last chance for questions


Wednesday

  • 09:00-10:30  : Natural radioactivity and gamma spectroscopy (Tuukka Turtiainen)
  1. Short recap: Decays series and interesting photopeaks
  2. Often measured matrices, special characteristics of: Uranium, Thorium-232, Radium-226, Thorium-228, Pb-210 and Po-210
  3. Exercise 1: Review of some recent articles
  • 10:30-10:45  : Coffee
  • 10:45-12:15 : Radioactive decay series and a simple procedure for solving the Bateman equations (Sigurður Emil Pálsson)
  1. Radioactive decay series, the Bateman equations
  2. Compartmental models - setting up problems involving radioactive decay series as compartmental models
  3. An effective procedure for solving compartmental models (presented in SMath Studio, freeware similar to MathCad)
  4. Exercise 2 (from presentation on Natural radioactivity): Calculating decay and in-growth in environmental samples
  • 12:15-12:30 : Summing up of morning's workshops, questions
  • 12:30-13:30: Lunch

13:30-16:00, Uncertainties and detection limits (including GUM and ISO-11929:2010) (Henrik Ramebäck)

  1. 13:30-14:00  : Some small remarks: The GUM method: from definition of the measurand to reporting measurement results
  2. 14:15-15:00  : The model equation in gamma spectrometry, and a tool for uncertainty propagation
  3. 15:00-16:00  : Workshop example: Calculating combined uncertainty in gamma ray spectrometry
  • 16:15:17:00  : Characteristic limits, ISO 11929 (Kaj Heydorn)