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  Injection of intense low-energy reactor-based positron beams into a supported magnetic dipole trap

Horn-Stanja, J., Stenson, E. V., Stoneking, M. R., Singer, M., Hergenhahn, U., Nißl, S., et al. (2020). Injection of intense low-energy reactor-based positron beams into a supported magnetic dipole trap. Plasma Research Express (PREX), 2(1): 015006. doi:10.1088/2516-1067/ab6f44.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0007-4EDA-D Version Permalink: https://hdl.handle.net/21.11116/0000-000A-D911-E
Genre: Journal Article

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Horn-Stanja_2020_Plasma_Res._Express_2_015006.pdf (Publisher version), 2MB
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2020
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 Creators:
Horn-Stanja, J.1, Author
Stenson, E. V.1, 2, 3, Author
Stoneking, M. R.1, 4, Author
Singer, M.1, 2, Author
Hergenhahn, Uwe1, 5, Author           
Nißl, S.1, 2, Author
Saitoh, H.1, 6, Author
Sunn Pedersen, T1, 7, Author
Dickmann, M2, Author
Hugenschmidt, C.2, Author
Danielson, J. R.3, Author
Affiliations:
1Max Planck Institute for Plasma Physics, 85748 Garching and 17491 Greifswald, Germany, ou_persistent22              
2Technische Universität München, 85748 Garching, Germany, ou_persistent22              
3University of California San Diego , La Jolla, California 92093, United States of America, ou_persistent22              
4Lawrence University, Appleton, Wisconsin 54911, United States of America, ou_persistent22              
5Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
6 The University of Tokyo, 277-8561 Kashiwa, Japan , ou_persistent22              
7University of Greifswald, 17489 Greifswald, Germany, ou_persistent22              

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 Abstract: An increased low-energy positron flux is obtained from the reactor based NEPOMUC source when using its primary beam at energies as low as 20 eV. First experiments with this beam in a supported magnetic dipole trap resulted in the maximum current of injected positrons to date. According to single-particle simulations, remaining limitations in the injection efficiency, observed in the experiment, can be attributed to the spatial spread of the beam. In the first trapping measurements with this beam, top-down asymmetries in the electrostatic trapping potential are found to be detrimental to confinement.

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Language(s): eng - English
 Dates: 2019-10-302020-01-232020-01-30
 Publication Status: Published online
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/2516-1067/ab6f44
 Degree: -

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Title: Plasma Research Express (PREX)
Source Genre: Journal
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Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: 14 Volume / Issue: 2 (1) Sequence Number: 015006 Start / End Page: - Identifier: ISSN: 2516-1067
CoNE: https://pure.mpg.de/cone/journals/resource/2516-1067