Fast high energy Compton scattering spectrometer with fluorescence coincidence detection

A high energy Compton scattering spectrometer operating at energies around 150 keV has been designed. It is based on the monochromatized synchrotron radiation with a flux of 3 × 10$^9$ photon/s. The performance of the spectrometer has been tested by measuring the Compton profiles of Nb and Ag samples. Coincidence equipment to measure the inelastic scattering cross section from the innershell electrons is introduced. The time resolution of the system has been studied and the effect of the pulsed nature of the synchrotron radiation on the coincidence measurements is discussed