Gamma spectra from neutron activation of Cl37 and Ni60

Hi John,

Thanks! I also tried activation of N7 and Cl37 (still using the example Hadr03). With Geant4 v10, the gamma spectrum of N7 activation ~ matches NNDC data (peaks are at the same position, but not always same height, as you saw in the topic Question in neutron capture (Gd155(n, gamma)Gd156) reaction - #6 by John_McFee). With v11, activation of N7 does not compare to NNDC data. And for Cl37, both Geant4 v10 and v11 give the same spectrum, which is nothing like NNDC data. So I understand that unfortunately, Geant4 is not yet able to properly model activation…