1. XI-MER 2013 XIOS-ISIB Measurements of Environmental Radioactivity XIOS Diepenbeek: Wouter Schroeyers, Luc Lievens, Steven Lelie ISIB Brussels: Caroline Licour, Jonathan Baré, Isabelle Gerardy Ten-day course, 4 ECTS credits

2. Goal: To confront the students with possible problems regarding radioactivity in our environment  Radioactivity measurements of artificial and natural contamination Better knowledge of the measurement techniques Better understanding of our radioactive environment Better evaluation of what is harmful and what has to be accepted. Participants: Third year bachelorstudents of XIOS First year masterstudents of ISIB Individual students from Cherne partners Organisation: First week in XIOS Second week in ISIB

3. Program: Lectures  NORM’s  Radioactivity in Environment, Sampling and Measurement  Radon Practical sessions  Training with various types of detectors and tracking radiological sources ( in XIOS) Field trips  Field trips in Demerbroeken, Mol (SCK-CEN), Villers-la-Ville  On the field spectrometry  Soil sampling Laboratory work  In ISIB  Soil samples from Demerbroeken, Mol and Villers la Ville are analyzed.  Soil air samples from Villers-la-Ville are counted. Evaluation part  Oral presentation  Report on the fieldtrips

4. Historical contamination from phosphate industry at Demerbroeken Field trip in Demerbroeken

5. Large 2.0 x 2.0 NaI crystal, 6.3 in 3 (103 cm 3 ) 40 K 238 U 232 Th

6. Soil sampling (depth 0 to 4 cm):

7. Field trip in Mol: Location: Banks of the Molse Nete Discharge point of a sewer coming from the nuclear complex Mol-Dessel. On May the 22th of 2007, Greenpeace published a report of one of their actions

8. Soil sampling (depth 0 to 4 cm):

9. Field trip in Villers la Ville: Weather cold and snowy.

10. 214Bi, 609keV 137Cs, 662keV 40K, 1461keV Spectrometry on the field

11. Measurement of the permeability of the soil Not possible due to the frozen soil. Permeability very low and then, sampling of the soil air not significant (radon in the soil air not measured).

12. Funding: Prince Philippe Funds Canberra IRE GDF Suez To be continued in 2014