Award Date

1-1-1990

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Physics

First Committee Member

Victor H. S. Kwong

Number of Pages

63

Abstract

We have made the first measurement of the thermal energy charge transfer rate of Mo{dollar}\sp{6+}{dollar} and neutral argon. This measurement was carried out using a technique that combines the production of ions by laser ablation and an ion trap. The multiply charged ions produced by laser ablation are cooled by crossed beams collision. These ions are stored in a radio-frequency ion trap. The charge transfer rate is determined by measuring the rate of loss of stored ions in the trap. The charge transfer rate coefficient, k, of Mo{dollar}\sp{6+}{dollar} and Ar is 1.02(.10) {dollar}\times{dollar} 10{dollar}\sp{-10}{dollar}cm{dollar}\sp3{dollar}s{dollar}\sp{-1}{dollar}. The estimated uncertainty is {dollar}\pm{dollar}10% and is mainly due to the uncertainty in the argon density determination and the statistical fluctuation of the ion signals.

Keywords

Argon; Charge; Energy; Measurement; Molybdenum; Multiply; Rate; Thermal; Transfer

Controlled Subject

Nuclear physics

File Format

pdf

File Size

1658.88 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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