- Chopper systems are used to pulse charged particle beams. In most cases, electric deflection systems are used to generate beam pulses of defined lengths and appropriate repetition rates. At high beam intensities, the field distribution of the chopper system needs to be adapted precisely to the beam dynamics in order to avoid aberrations. An additional challenge is a robust design which guarantees reliable operation. For the Frankfurt Neutron Source FRANZ, an E×B chopper system is being developed which combines static magnetic deflection with a pulsed electric field in a Wien filter configuration. It will generate proton pulses with a flat top of 50 ns at a repetition rate of 250 kHz for 120 keV, 200 mA beams. For the electric deflection, pre-experiments with static and pulsed fields were performed using a helium ion beam. In pulsed mode operation, ion beams of different energies were deflected with voltages of up to ±6 kV and the resulting response was measured using a beam current transformer. A comparison between experiments and theoretical calculations as well as numerical simulations are presented.
MetadatenAuthor: | Hannes Dinter, Martin DrobaGND, Marcel Lotz, Oliver MeuselGND, Ilja Müller, Daniel Noll, Ulrich RatzingerORCiD, Kathrin Schulte, Christopher Wagner, Christoph Wiesner |
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URN: | urn:nbn:de:hebis:30:3-365540 |
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URL: | http://accelconf.web.cern.ch/AccelConf/IPAC2011/papers/mops029.pdf |
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ISBN: | 978-92-9083-366-6 |
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Parent Title (English): | Proceedings of IPAC11 Conference, San Sebastián, Spain |
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Document Type: | Conference Proceeding |
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Language: | English |
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Year of Completion: | 2011 |
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Year of first Publication: | 2011 |
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Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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Release Date: | 2015/01/26 |
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Issue: | MOPS029 |
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Page Number: | 3 |
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First Page: | 664 |
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Last Page: | 666 |
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Note: | Copyright (c) 2011 by IPAC’11/EPS-AG — cc Creative Commons Attribution 3.0 (CC BY 3.0) |
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HeBIS-PPN: | 386208042 |
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Institutes: | Physik / Physik |
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Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Sammlungen: | Universitätspublikationen |
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Licence (German): | Creative Commons - Namensnennung 3.0 |
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