Transverse diffusion ofandin Ar
- 1 June 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 29 (6) , 3379-3387
- https://doi.org/10.1103/physreva.29.3379
Abstract
The ratio of the transverse-diffusion coefficient to the mobility determines the transverse Gaussian spreading of a pencil beam of ions pulled through a buffer gas by a uniform electric field. The mathematical basis for this effect is reviewed and a precision apparatus to measure the transverse spread is described. Measurements of the transverse diffusion of and in Ar in the pressure range from 0.2 to 0.6 Torr at room temperature for values ranging from 30 to 290 Td are presented and discussed ( ).
Keywords
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