Temperature Variation of Ionic Mobilities in Hydrogen

Abstract

Measurements have been made of the temperature variation of the mobilities of positive ions in hydrogen over the range 77°-300°K. The zero-field mobility values are ${\mu }_0=12.3\mathrm{}$ ${\mathrm{cm}}^2$/v sec (300°K), 13.3 (195°K), and 13.0 (77°K). The present results at 300°K are in agreement with the data of Lauer, Bradbury, and Mitchell at low $\frac{E}{p_0}$, and at high $\frac{E}{p_0}$ agree with Rose's measurements. Only a single ion species was observed in the present studies. Reasons are given which support the belief that the ion observed in these measurements was ${\mathrm{H}}_3^{+}$.