Gw2011 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)