NDLI: Development of a high current movin Arc gas discharge switch for the FAIR magnetic horn

Content Provider	IEEE Xplore Digital Library
Author	Iberler, M. Hock, C. Schoenlein, A. Wiechula, J. Jacoby, J.
Copyright Year	2013
Description	Author affiliation: Inst. for Appl. Phys., Goethe Univ. Frankfurt, Frankfurt am Main, Germany (Iberler, M.; Hock, C.; Schoenlein, A.; Wiechula, J.; Jacoby, J.)
Abstract	The planed Facility for Antiproton and Ion Research (FAIR) is a new international accelerator laboratory at the GSI in Darmstadt, Germany. One research topic at this facility is aimed to protons and anti protons colliding experiments. After generation of these antiprotons strong magnetic fields are necessary to focus the antiprotons. To achieve this high magnetic fields a magnetic horn will be used. To generate for this application the necessary high magnetic field the designed stripline of the pulse forming network (PFN) has to handle a peak current of 400kA with a pulse length of 20μs. Currently the only possibility to handle this high current is the use of mercury filled Ignitrons. The plasma physics working group at the University of Frankfurt develops a mercury free switch, which is able to replace the Ignitrons in the PFN of the magnetic horn. This contribution shall give an overview about the development of a gas discharge switch with minimized local electrode erosion. The experimental setup of the switch consists of coaxial electrodes, similar to the geometry used for plasma focus devices. The main discharge between the coaxial electrode system will be initiated by a trigger predischarge. After the ignition of the main discharge between the coaxial electrode system and due to the interaction of the induced radial magnetic field with the plasma, the gas discharge will be accelerated to the open end of the coaxial electrode $system^{1}.$ This acceleration of the plasma sheet is due to the Lorentz force, which interacts with the discharge. Therefore the switch will be called a Lorentz Drift Switch (LDS). For the special application of the magnetic horn to provide enough charged particles several of these coaxial devices will be stacked together in a parallel.
Starting Page	1
Ending Page	1
File Size	95624
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6633341
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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