Electron capture to the continuum from atomic hydrogen

Author

Gary Alan Glass

Date of Award

3-1984

Degree Type

Dissertation

Degree Name

Doctor of Philosophy

Major

Physics

Major Professor

Ivan A. Sellin

Abstract

The differential cross section measurement for electron capture to the continuum (ECC) by 12 MeV C⁶⁺ ion incident on atomic hydrogen 2 ~ 19 cm has been obtained. A value of (4.48+3.2)x10^-19 cm²/sr-atom was found for the differential cross section for an experimental acceptance angle of 2°. The ratio of the ECC differential cross sections for molecular and atomic hydrogen was found to be ~1.25.

The atomic hydrogen target was produced by a high temperature oven which dissociates molecules into H₂ atoms. At a temperature of 2350K, dissociation fractions of >90% were obtained for pressures >3 mTorr in the oven. The oven is electron impact heated by a beam of electrons produced by an electron gun with a Pierce lens system. Design, construction, and operating characteristics of the oven are presented.

Recommended Citation

Glass, Gary Alan, "Electron capture to the continuum from atomic hydrogen. " PhD diss., University of Tennessee, 1984.
https://trace.tennessee.edu/utk_graddiss/12869