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Abstract

Engineering

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published: May 9th, 2020

DOI:

10.3791/61130

1SLAC National Accelerator Laboratory, 2University of Alberta, 3Friedrich-Alexander-Universität Erlangen-Nürnberg, 4European XFEL, 5Helmholtz-Zentrum Dresden-Rossendorf, 6Technische Universität Dresden, 7Technische Universität Darmstadt

* These authors contributed equally

Abstract

This protocol presents a detailed procedure for the operation of continuous, micron-sized cryogenic cylindrical and planar liquid jets. When operated as described here, the jet exhibits high laminarity and stability for centimeters. Successful operation of a cryogenic liquid jet in the Rayleigh regime requires a basic understanding of fluid dynamics and thermodynamics at cryogenic temperatures. Theoretical calculations and typical empirical values are provided as a guide to design a comparable system. This report identifies the importance of both cleanliness during cryogenic source assembly and stability of the cryogenic source temperature once liquefied. The system can be used for high repetition rate laser-driven proton acceleration, with an envisioned application in proton therapy. Other applications include laboratory astrophysics, materials science, and next-generation particle accelerators.

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Keywords Cryogenic Liquid Jets

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