Evaporation and molecular beam scattering from a flat liquid jet

11 March 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


An experimental setup for molecular beam scattering from flat liquid sheets has been developed, with the goal of studying reactions at gas-liquid interfaces for volatile liquids. Specifically, a crossed molecular beam instrument that can measure angular and translational energy distributions of scattered products has been adapted for liquid jet scattering. A microfluidic chip is used to create a stable flat liquid sheet inside vacuum from which scattering occurs, and both evaporation and scattering from this sheet are characterized by a rotatable mass spectrometer that can measure product time-of-flight distributions. This manuscript describes the instrument and reports on first measurements of evaporation of dodecane and Ne from a Ne-doped dodecane flat jet, as well as scattering of Ne from a flat jet of pure dodecane.


molecular beam scattering
liquid interface
liquid flat jet


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