Date/Time: Mon Sep 09 2024 at 13:00<br/><br/>Location: ISAC II Conf Room<br/><br/>Speaker: Andre Michel (Institute of Applied Physics, University of Frankfurt)<br/><br/>Title: Setup and Investigation of a Plasma Window Pressure Valve for Heavy Particle Beam Transmission to High Pressurized Target Areas<br/><br/>Abstract: With an ever-growing enhancement of particle beam energies and intensities 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.
(1) Hershcovitch and based on a wall stabilized arc discharge, 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, featuring a continuously operated argon arc discharge (t > 10h), was developed and successfully tested during the 2022 GSI UNILAC beamtime, utilizing an 48Ca10+ ion beam at 4.8MeV/u - therefore proving its applicability on the transmission of heavy ion beams.
This talk presents the underlying sealing mechanisms of the arc discharge, its electrical parameters, its plasma physical- and pressure separating properties, as well as the characteristics of the transmitted ion beam.
(1) Hershcovitch A., J. Appl Phys., AIP Publishing 1995, 78, 5283
Join Zoom Meeting
https://liverpool-ac-uk.zoom.us/j/95899572001?pwd=FVTkTOlJdJ4CVGXrPt1nCeDZJqSxk5.1
Meeting ID: 958 9957 2001
Passcode: YfMDM1?5<br/><br/>Refreshments available<br/><br/>______________________________<br/><br/>General TRIUMF seminar information available at <a href='http://www.triumf.ca/home/upcoming-events/about-seminars-lectures'>http://www.triumf.ca/home/upcoming-events/about-seminars-lectures<a>