Accession Number:

ADA230492

Title:

Ion and Electron Interactions at Thermal and Suprathermal Energies

Descriptive Note:

Final rept. 1 Aug 1987-31 Jul 1990

Corporate Author:

BIRMINGHAM UNIV (UNITED KINGDOM) SCHOOL OF PHYSICS AND SPACE RESEARCH

Personal Author(s):

• Smith, David
• Adams, Nigel G.

Report Date:

1990-09-01

Pagination or Media Count:

50.0

Abstract:

The flowing afterglowLangmuir probe FALP apparatus has been used to study a electron attachment reactions of many species including, for the first time, some unstable molecular radicals, and some halogenated benzenes, triflate esters, halomethanes and haloethanes b dissociative recombination reaction rate coefficients and, for the first time, the neutral products specifically OH and H radicals from the dissociative recombination of selected positive ions. The selected ion flow tube has been used to determine the rate coefficients and product ion distributions for many positive ionneutral reactions, including reactions of ions in the series PHnn 0 to 4, of the rare gas ions Kr, Kr2Xe and Xe2 and of the halogen ions F, Cl, Br and I.

Descriptors:

• *ELECTRONS
• *THERMAL PROPERTIES
• DISTRIBUTION
• INTERACTIONS
• MOLECULES
• NEUTRAL
• ENERGY
• RATES
• COEFFICIENTS
• ATTACHMENT
• FLOW
• ESTERS
• TUBES
• CHEMICAL RADICALS
• CATIONS
• RARE GASES
• IONS

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE