Collisions of fast multicharged ions in gas targets: charge transfer and ionization
Measurements of cross sections for charge transfer and ionization of H/sub 2/ and rare-gas targets have been made with fast, highly stripped projectiles in charge states as high as 59+. We have found an empirical scaling rule for electron-capture cross section in H/sub 2/ valid at energies above 275 keV/amu. Similar scaling might exist for other target gases. Cross sections are generally in good agreement with theory. We have found a scaling rule for electron loss from H in collisions with a fast highly stripped projectile, based on Olson's classical-trajectory Monte-Carlo calculations, and confirmed by measurements in an H/sub 2/ target. We have found a similar scaling rule for net ionization of rare-gas targets, based on Olson's CTMC calculations and the independent-electron model. Measurements are essentially consistent with the scaled cross sections. Calculations and measurements of recoil-ion charge-state spectra show large cross sections for the production of highly charged slow recoil ions.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6151065
- Report Number(s):
- LBL-13156; CONF-8105113-1; ON: DE81030541; TRN: 81-017556
- Resource Relation:
- Conference: 2. workshop on EBIS and related topics, Paris, France, 11 May 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON IONS
ION-ATOM COLLISIONS
HYDROGEN
ION-MOLECULE COLLISIONS
IRON IONS
LEAD IONS
NIOBIUM IONS
RARE GASES
CROSS SECTIONS
ELECTRON CAPTURE
EXPERIMENTAL DATA
IONIZATION
KEV RANGE 100-1000
MEV RANGE 01-10
MULTICHARGED IONS
ATOM COLLISIONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
DATA
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
INFORMATION
ION COLLISIONS
IONS
KEV RANGE
MEV RANGE
MOLECULE COLLISIONS
NONMETALS
NUMERICAL DATA
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena