ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
We describe the design, construction, calibration, and operation of a dosing system for controlled exposures of solid surfaces to gases in ultrahigh vacuum. The doser includes seven parallel tubes in a hexagonal pattern, sized to give nearly uniform flux over a 6-mm-diam circle on the sample, and arranged to compensate for an oblique incidence direction. This arrangement gives an enhancement in the ratio of total flux to diffuse flux from the background in excess of 10:1, in spite of a 15.5-mm distance between the doser and the sample.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1143344
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