Neutron Fourier Stress Diffractometer FSS at the IBR-2 Reactor: Results of Upgrading and Prospects for Further Development

The neutron Fourier diffractometer FSS (Fourier Strain Scanner) was used between 1990 and 2010 at the FRG-1 stationary reactor at the GKSS research center (Geesthacht, Germany) for the study of residual stresses in structural materials and industrial products. In 2010, the FRG-1 reactor was finally decommissioned. In this regard, the FSS diffractometer was transported to the Frank Laboratory of Neutron Physics of JINR (Dubna, Russia) in 2014 and installed on channel no. 13 of the IBR-2 pulsed reactor. The results of upgrading the instrument and further prospects for its development are presented.