Multi-ionization of krypton and its ions by high-energy electron impact

Journal Article · Sat Dec 01 04:00:00 EST 1973 · Phys. Rev., A, v. 8, no. 6, pp. 3032-3044

DOI:https://doi.org/10.1103/PhysRevA.8.3032· OSTI ID:4315876

Salop, A

Estimates of the total ionization and multi-ionizsation high-energy- electron collision cross sections have been obtained for krypton and its ground- state ions. The total cross sections were computed within the framework of the Bethes-Born high-energy-approximation theory using the semiclassical projection- operator technique of Hsahn and Watson and the independent-particle model for atoms due to Green, Sellin, and Zachor. Both direct continuum ionization and inner-shell excitation followed by Auger ionizing transitions were taken into account. Multiple-ionization cross sections were then estimated using experimental information on electron emission following ejection of inner-shell electrons in neutral krypton and a simplified model of Auger cascading in ions. The results, applied to a calculation of the cumulative ionization produced by a relativistic electron ring beam interacting with a krypton pressure pulse, indicate that Auger processes have a significant influence in speeding up ionization rates in such a system. (auth)

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-022363
• OSTI ID: 4315876
• Journal Information: Phys. Rev., A, v. 8, no. 6, pp. 3032-3044, Journal Name: Phys. Rev., A, v. 8, no. 6, pp. 3032-3044; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

*ELECTRON-ATOM COLLISIONS-- IONIZATION
*ELECTRON-ION COLLISIONS-- IONIZATION
*KRYPTON IONS-- ELECTRON-ION COLLISIONS
*KRYPTON-- ELECTRON-ATOM COLLISIONS
AUGER EFFECT
EXCITATION
EXCITATION FUNCTIONS
KEV RANGE 10-100
KEV RANGE 100-1000
MEV RANGE 01-10
MEV RANGE 10-100
N60400* --Physics (Atomic & Molecular)--Collision Phenomena
PROJECTION OPERATORS
SINGLE- PARTICLE MODEL
TOTAL CROSS SECTIONS