Measurement of concentration and study of recombination of atomic hydrogen by Wrede-Harteck method

Kumar, Vijay ; Krishnakumar, E. (1979) Measurement of concentration and study of recombination of atomic hydrogen by Wrede-Harteck method Review of Scientific Instruments, 50 (6). pp. 776-779. ISSN 0034-6748

Full text not available from this repository.

Official URL: http://rsi.aip.org/resource/1/rsinak/v50/i6/p776_s...

Related URL: http://dx.doi.org/10.1063/1.1135925

Abstract

The dissociation efficiency of molecular hydrogen was measured using a Wrede-Harteck gauge, at nine different pressures from 0.2 to 1 Torr with discharge/flow tubes of different sizes. The maximum dissociation efficiency was measured at 0.4 to 0.5 Torr pressure of molecular hydrogen. The effect of recombination of hydrogen atoms on the walls of the flow system and in the gas volume was considered in detail and the dissociation efficiency in the discharge region was calculated. Also, γ, the fraction of surface collisions leading to recombination, was measured by the same method and was found to be 6.4× 10-5 and 4.3× 10-4 for clean Pyrex and quartz tubes, respectively. This may be a new and relatively accurate method for measuring γ for atomized gases in discharge tubes of different materials.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
ID Code:18166
Deposited On:17 Nov 2010 13:04
Last Modified:03 Jun 2011 12:29

Repository Staff Only: item control page