Photon Strength Functions at the low-energy tail of the GEDR Obtained from Different Reactions

In this contribution the main difficulties with the extraction of the PSFs from different experiments at γ-ray energies below the particle emission are emphasized. A special attention is paid to a mutual comparison of PSFs deduced from (n,γ), (γ,γ') and 3He-induced reactions. It is shown that with the available techniques for extracting the data on PSFs the different reactions yield inconsistent results. At present, it is thus very difficult to make a reliable comparison of experimental data on these quantities with theoretical predictions.