Fluorescent sources for an energy dispersive Compton spectrometer

A new version of γ-ray Compton spectrometer has been developed substituting the γ-ray source with an X-ray fluorescent source. The new instrument provides higher intensity with a large variety of incident energies. Using an Au X-ray spectrometry tube operating at 100 kV, 30 mA, fluxes as high as 108 ph/s deg2 have been reached for photon energy of about 10 keV of the primary beam in the Compton spectrometer. In the area of γ-rays of energy 59.54 keV that are employed in most of the 241Am Compton spectrometers, the flux of the fluorescent source is 5.28 x 106 ph/s deg2 in comparison to 6.16 x 105 ph/s deg2 of a 5 Ci 241Am annular source. To demonstrate the new instrument's applicability on the Compton spectroscopical studies of the condensed matter, it has been employed in measuring the difference Compton profiles for polycrystalline TiH2 and Ti and the ratio coherent-incoherent scattering cross-section of Al, S, Ti Cr at energies 48.82 keV and 52.00 keV. (orig.)