Tunable IR synchrotron light source of high luminosity for spectroscopic investigations of HTSC materials

A pulsed electron ring accelerator is proposed to be used for submillimetre spectroscopy of high-Tc superconductors (HTSC), namely for energy gap measurements by film transmission spectra. The calculations are based on the fact that during the formation of the electron ring in the pulsed accumulator the short-wave boundary of the SR spectrum moves towards shorter wavelengths so that time interval of 1 ms corresponds to the scanning of the 10-100 μm wavelength range. It is shown by calculations that two-channel registration of the radiation, passed through a HTSC film allows one to find the value of the energy gap in the range of 15-28 meV with the accuracy about 10%. 9 refs.; 6 figs