Scattering cross sections differential with respect to both the scattering angle and the energy of the scattered photons are derived in the impulse approximation for Al, Cu, Sn and Pb in the energy region 17.44 less than or equal to E less than or equal to 39.91 keV at an angle of 90 degrees. Double differential scattering cross sections are evaluated using nonrelativistic and relativistic expressions based on impulse approximation. The difference between the two expressions is less than 1%, in the important interval P-z less than or equal to 3 (a.u), With monoenergetic radiation the influence of scattering geometry on the energy broadening is evaluated with respect to the accepted scattering angles and the incident photon energy.
Whole-atom Compton scattering of unpolarised X-ray photons in the energy region 17.44 E 39.91 keV / Rao, D. V.; Cesareo, R.; Gigante, Giovanni Ettore. - In: APPLIED RADIATION AND ISOTOPES. - ISSN 0969-8043. - STAMPA. - 50:2(1999), pp. 325-329. [10.1016/S0969-8043(97)10109-9]
Whole-atom Compton scattering of unpolarised X-ray photons in the energy region 17.44 E 39.91 keV
GIGANTE, Giovanni Ettore
1999
Abstract
Scattering cross sections differential with respect to both the scattering angle and the energy of the scattered photons are derived in the impulse approximation for Al, Cu, Sn and Pb in the energy region 17.44 less than or equal to E less than or equal to 39.91 keV at an angle of 90 degrees. Double differential scattering cross sections are evaluated using nonrelativistic and relativistic expressions based on impulse approximation. The difference between the two expressions is less than 1%, in the important interval P-z less than or equal to 3 (a.u), With monoenergetic radiation the influence of scattering geometry on the energy broadening is evaluated with respect to the accepted scattering angles and the incident photon energy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
