Scaling laws for electron loss from ion beams

✍ Scribed by R.D. DuBois; A.C.F. Santos; R.E. Olson

• Book ID: 104065636
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 200 KB
• Volume: 544
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2005.01.282

✦ Synopsis

Empirical scaling rules for projectile stripping induced by collisions with argon were extracted by analyzing a large database of experimental cross-sections. By scaling both the cross-sections and the impact velocities, data for single and multiple electron loss from negative ions, neutral particles, and singly or multiply charged positive ions could all be fitted with a single universal curve. At high energies, the scaled data are consistent with a v À1 impact velocity dependence up to scaled velocities of 10. For higher scaled velocities, limited data imply that the velocity dependence becomes v À2 . Using our fitted curve, cross-sections are predicted for total and single electron loss from low-charge-state heavy ions of interest for heavy ion fusion and high-energy density research projects. Using a v À2 or a v À1 dependence to extrapolate to energies of 10-20 MeV/u does not strongly influence the predicted magnitude of the total loss crosssections but does influence the multiple/single loss ratios.