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Cryogenic Liquid Jets for High Repetition Rate Discovery Science

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Published on: May 9, 2020

A liquid flatjet system for solution phase soft-x-ray spectroscopy.

Maria Ekimova¹, Wilson Quevedo², Manfred Faubel³

¹Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie , Max-Born-Str. 2A, 12489 Berlin, Germany.

Structural Dynamics (Melville, N.Y.)

|January 23, 2016

Summary

This summary is machine-generated.

A novel liquid flatjet system enables soft-x-ray spectroscopy of aqueous solutions. This system creates stable liquid sheets for transmission measurements under vacuum, crucial for studying solutions without windows.

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Area of Science:

Physics
Chemistry
Spectroscopy

Background:

Soft-x-ray spectroscopy requires specialized sample environments.
Transmission measurements of liquids are challenging due to window absorption and reactivity.

Purpose of the Study:

To develop and characterize a liquid flatjet system for solution phase soft-x-ray spectroscopy.
To enable transmission mode soft-x-ray spectroscopy of aqueous solutions under vacuum.

Main Methods:

Formation of stable liquid sheets by colliding two identical laminar water jets.
Operation of the liquid flatjet system under vacuum conditions (<10⁻³ mbar).
Analysis of liquid sheet thickness using interferometric, mid-infrared transmission, and O K-edge absorbance measurements.

Main Results:

The liquid flatjet system produces a stable liquid sheet (4.6 mm long, 1.0 mm wide) suitable for spectroscopy.
Liquid sheet thickness was determined to be 1.4–3 μm, consistent under atmospheric and vacuum conditions.
Successful demonstration of soft-x-ray spectroscopy on aqueous NH₄⁺ (N K-edge) using the flatjet system.

Conclusions:

The liquid flatjet system is a viable tool for soft-x-ray spectroscopy of aqueous solutions.
The system allows for steady-state and time-resolved studies in the soft-x-ray regime.
The ability to recycle small sample volumes enhances its utility for precious or limited samples.