Charge-state changing processes for Ne ions passing through thin carbon foils
Abstract
We report on a method to measure charge-changing cross sections for ions passing through matter in nonequilibrium conditions. The charge states of an initial distribution are separated by applying a high voltage before they penetrate thin carbon foils; the charge states after those foils are identified using a high resolution magnetic spectrometer. Thus the full matrix of cross sections σ(qi,qf) and energy losses ΔE(qi,qf) is obtained. The data are compared to calculated charge-state distributions based on microscopic cross sections for charge-changing processes in individual interaction steps and with a Monte Carlo simulation.
- Publication:
-
Physical Review A
- Pub Date:
- March 2000
- DOI:
- 10.1103/PhysRevA.61.032901
- Bibcode:
- 2000PhRvA..61c2901B
- Keywords:
-
- 34.50.Bw;
- 79.20.Rf;
- Energy loss and stopping power;
- Atomic molecular and ion beam impact and interactions with surfaces