Greifswald 2024 – scientific programme

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P: Fachverband Plasmaphysik

P 2: Atmospheric Pressure Plasmas and their Applications I

P 2.4: Talk

Monday, February 26, 2024, 12:00–12:15, WW 1: HS

Setup and Investigation of a Plasma Window for Heavy Particle Beam Transmission to High Pressurized Targets — •Andre Michel, Fateme Ghaznavi, Michael Händler, Adem Ates, Bernhard Bohlender, Marcus Iberler, and Joachim Jacoby — Goethe University Frankfurt

With an ever-growing enhancement of particle beam intensities and energies in accelerators around the world, a reliable vacuum to high-pressure-target separation technique is strongly needed where common separation techniques such as differential pumping stages or solid membranes might fail. A plasma window, first introduced by A. Hershcovitch [1], offers the advantage of a membraneless particle beam transmission from low- to high pressurized target areas.

At the plasma physics department of Goethe University Frankfurt, a plasma window was developed and successfully tested during the 2022 GSI UNILAC beamtime, utilizing an 48Ca10+ ion beam at 4.8MeV/u - therefore being the first plasma window setup proving its applicability on the transmission of heavy ion beams.

This talk presents the underlying working mechanisms of the plasma window, its plasma physical properties, electrical parameters, its pressure separating properties as well as the characteristics of the transmitted ion beam.

[1] Hershcovitch, A., J. Appl. Phys., AIP Publishing, 1995, 78, 5283

Keywords: Plasma Window; Ion Beam Transmission; Spectroscopy