This training course is organized by the SCK•CEN Academy for Nuclear Science and Technology in collaboration with the EC-JRC Geel in order to bring together master students, beginning PhD students or professionals involved in the characterisation of spent nuclear fuel, decay heat calculations and/or measurements. This training course is follwed by a Topical Day on the same topic on October 26, 2017, also at the SCK•CEN Lakehouse. Registration for the Topical Day is open via this site.