H. De Cooman, E. Pauwels, H. Vrielinck, E. Sagstuen, M. Waroquier, F. Callens TalkConference / event / venue ERR 2008 congres (The 36th annual meeting of the European Radiation Research)Tours, FranceMonday, 1 September, 2008 to Thursday, 4 September, 2008