Ionization cross sections for 10--300-keV/u and electron-capture cross sections for 5--150-keV/u /sup 3/He/sup 2 +/ ions in gases

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.32.2128· OSTI ID:5372910

Rudd, M E; Goffe, T V; Itoh, A

Cross sections for production of positive and negative charge for 10--300-keV/u He/sup 2 +/ ions on He, Ne, Ar, Kr, H/sub 2/, N/sub 2/, CO, O/sub 2/, CH/sub 4/, N/sub 2/O, and CO/sub 2/ were measured by the transverse-field method. Single- and double-electron-capture cross sections at 5--150 keV/u for the same targets were measured by the method of deflection of different charge-state components of the beam after passing through a known length of target gas. A secondary-emission detector was used to detect the neutral component of the beam. A small least-squares adjustment of the cross sections was made to satisfy the equation sigma/sub +/ = sigma/sub -/+sigma/sub 21/+2sigma/sub 20/ which follows from conservation of charge.

• Research Organization: University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0111
• OSTI ID: 5372910
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 32:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
CAPTURE
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY RANGE
EVEN-ODD NUCLEI
FLUIDS
GASES
HELIUM 3
HELIUM ISOTOPES
HYDROGEN
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
ISOTOPES
KEV RANGE
KEV RANGE 10-100
LIGHT NUCLEI
MOLECULE COLLISIONS
NONMETALS
NUCLEI
RARE GASES
STABLE ISOTOPES