Collision phenomena in a mass spectrometer for isotope separation

• DOI: 10.1016/0167-5087(82)90165-x
• Publication Date: 2002-11-12T00:12:24Z
• Authors: T. Chakrabarty; S. Kundu; S.B. Karmohapatro
• Keywords: 0103 physical sciences; 01 natural sciences

Abstract Total collision cross sections of neon ions in neon gas in a 210° inhomogeneous mass spectrometer for radioactive isotope separation as a function of projectile ion energy are determined over its path length of the target by beam attenuation technique. Results show that the loss of ion beam is mainly due to multiple small angle scattering and charge transfer reactions. Significant deviations from the scaling factors of the small angle multiple scattering theory are observed from an analysis of the experimental data on peak current density converted to the relative values of the half-widths at half-maxima of the lateral distribution. Observed oscillations of cross section with energy may arise due to some anomalies in differential scattering cross section at small impact parameter or due to curve crossing, in a semiclassical approximation, at a small nuclear separation.