Spurious ionic charge states in a tandem accelerator

J. FERNÁNDEZ NIELLO; A. ARAZI; O. CAPURRO; D. ABRIOLA; A. FERRERO; L. GLADKIS; R. LIBERMAN,; G. MARTÍ; A. PACHECO; M. RAMÍREZ; J. TESTONI

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Elsevier

Año: 2004 vol. 223 p. 242 - 246

0168-583X

Spurious projectiles appearing in a tandem accelerator when tuning highly ionized 35Cl were quantitatively analyzed in an attempt to understand their origin. Most of these ions can be explained in terms of multiple electron-capture and electron-loss reactions of the accelerating particle in the high-energy section of the accelerator. The fair agreement between the experimental yields of different spurious beams and the predictions of a theoretical model lends support to the hypothesis that such atomic collisions take place with molecules from the residual gas in the accelerator.