Gas Ion Mobilities in Ether-Hydrogen Mixtures

Mobilities of positive ions in some gas mixtures used in proportional and drift chambers

2014 We have measured the mobility of positive ions in several gas mixtures frequently used in proportional and drift chambers, namely Ar-(OCH3)2CH2, Ar-(OCH3)2CH2-IsoC4H10, Ar-CH4, and Ar-CO2. In all gas mixtures considered, Blanc’s law of positive ion mobility has been verified, except for a very small methylal concentration in argon-isobutane-methylal. The law permits the calculation of ion ...

3 GEM Operation in Negative Ion Drift Gas Mixtures

The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in CS 2 vapor at low pressure, and in mixtures of CS 2 with Argon and Helium, some near 1 bar total pressure.

Mobilities of Ions in Air, Hydrogen, and Nitrogen.

Preliminary communication. s The paper will appear shortly in Science, New York, N. S., 1918. All the precautions mentioned in this account were carefully observed in the present investigation. 3 The methods previously used in studying the photosynthesis of aquatic plants are not as accurate as the one here described, nor do previous experiments afford the kind of data needed for our purpose. C...

Cold Spectroscopy of Metal Ion-Crown Ether Complexes in the Gas Phase

Gas Flow Influence on Negative Hydrogen Ion Generation within the Microwave-driven Negative Ion Source*

H ion was generated through two processes within a volume Csfree source. The density of molecule hydrogen gas will impact on the electron temperature within the primary discharge chamber that will influence the population of vibrational excited H2. Within the extraction region, the interaction between molecule hydrogen and H ion will is cause the dissociation of negative ion. To better understa...