Download or read book Differential Electron Emission in Multi-charged Ion Atom Collisions written by and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absolute doubly differential cross sections for electron emission are presented for 0.5 MeV/u multi-charged ion impact on helium, neon, and argon targets. For the helium target, Bq+, Cq+ (q = 2--5) and Oq+, Fq+ (q = 3--6) projectiles were studied; for neon and argon, only Cq+ (q = 2--5) projectiles were used. Electron emission for 10[degrees] [le] [Theta] [le] 60[degrees] was studied. The measured cross sections were assumed to scale as the square of an effective projectile charge, Z[sub eff], which was determined as a function of emitted electron energy and angle. For distant collisions (low emitted electron energies), we find that Z[sub eff] [approx] q for small q and Z[sub eff] q for the highest values of q investigated. For sufficiently close collisions (above the binary encounter peak), Z[sub eff] Z and increases as q decreases. This is true for all angles and targets investigated.