SENSITIVE ionization methods for the measurement of low gas and vapour concentration require the ionization of the test gas or vapour under conditions where an inert carrier gas is unionized. Such ...

A NUMBER of workers have investigated ionization of gases by positive ions of low energies 1–5. They have measured ionization electron current produced by positive ions by their impact with gas atoms.

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 249, No. 1257 (Jan. 1, 1959), pp. 237-247 (11 pages) There exists no accurate mathematical treatment of ...

Most gases are extremely difficult to detect because they are odorless. Certain gases are extremely harmful to humans if inhaled. Owing to the above, researchers have developed many potent techniques ...

Discrepancies exist between the many published measurements of W̄, the average energy to produce an ion pair for helium. Since results for other gases have been relatively consistent, the cause of the ...

The technique of detecting and quantifying the proportion of gases in a specific environment is known as gas analysis. In the context of PV cell fabrication, this entails analyzing and regulating the ...