Abstract
The influence of fast neutron irradiation of different energies (2 and 14 MeV) and neutron integrated flux on triglycine sulphate, TGS, single crystal has been studied during the measurements of the thermal expansion coefficient αii (i=1,2,3). A remarkable change in thermal expansion coefficient αii was observed in the vicinity of Curie temperature Tc with the change of neutron integrated flux. The absolute values of deformation for 2 MeV are higher than those for 14 MeV at certain flux.