Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields
We report the manipulation of positron orbits in a toroidal dipole magnetic field configuration realized with electric fields generated by segmented electrodes. When the toroidal circulation motion of positrons in the dipole field is coupled with time-varying electric fields generated by azimuthally...
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| creator | Saitoh, H. Horn-Stanja, J. Nißl, S. Stenson, E. V. Hergenhahn, U. Pedersen, T. Sunn Singer, M. Dickmann, M. Hugenschmidt, C. Stoneking, M. R. Danielson, J. R. Surko, C. M. |
| description | We report the manipulation of positron orbits in a toroidal dipole magnetic field configuration realized with electric fields generated by segmented electrodes. When the toroidal circulation motion of positrons in the dipole field is coupled with time-varying electric fields generated by azimuthally segmented outer electrodes, positrons undergo oscillations of their radial positions. This enables quick manipulation of the spatial profiles of positrons in a dipole field trap by choosing appropriate frequency, amplitude, phase, and gating time of the electric fields. According to numerical orbit analysis, we applied these electric fields to positrons injected from the NEPOMUC slow positron facility into a prototype dipole field trap experiment with a permanent magnet. Measurements with annihilation γ-rays clearly demonstrated the efficient compression effects of positrons into the strong magnetic field region of the dipole field configuration. This positron manipulation technique can be used as one of essential tools for future experiments on the formation of electron-positron plasmas. |
| doi_str_mv | 10.1063/1.5021578 |
| format | Conference Proceeding |
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V. ; Hergenhahn, U. ; Pedersen, T. Sunn ; Singer, M. ; Dickmann, M. ; Hugenschmidt, C. ; Stoneking, M. R. ; Danielson, J. R. ; Surko, C. M.</creator><contributor>Stoneking, Matthew R.</contributor><creatorcontrib>Saitoh, H. ; Horn-Stanja, J. ; Nißl, S. ; Stenson, E. V. ; Hergenhahn, U. ; Pedersen, T. Sunn ; Singer, M. ; Dickmann, M. ; Hugenschmidt, C. ; Stoneking, M. R. ; Danielson, J. R. ; Surko, C. M. ; Stoneking, Matthew R.</creatorcontrib><description>We report the manipulation of positron orbits in a toroidal dipole magnetic field configuration realized with electric fields generated by segmented electrodes. When the toroidal circulation motion of positrons in the dipole field is coupled with time-varying electric fields generated by azimuthally segmented outer electrodes, positrons undergo oscillations of their radial positions. This enables quick manipulation of the spatial profiles of positrons in a dipole field trap by choosing appropriate frequency, amplitude, phase, and gating time of the electric fields. According to numerical orbit analysis, we applied these electric fields to positrons injected from the NEPOMUC slow positron facility into a prototype dipole field trap experiment with a permanent magnet. Measurements with annihilation γ-rays clearly demonstrated the efficient compression effects of positrons into the strong magnetic field region of the dipole field configuration. This positron manipulation technique can be used as one of essential tools for future experiments on the formation of electron-positron plasmas.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.5021578</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Compressive strength ; Dipoles ; Electric fields ; Electrodes ; Electron-positron plasmas ; Magnetic field configurations ; Orbits ; Permanent magnets ; Plasma ; Positrons ; Variation</subject><ispartof>AIP conference proceedings, 2018, Vol.1928 (1)</ispartof><rights>Author(s)</rights><rights>2018 Author(s). Published by AIP Publishing.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/acp/article-lookup/doi/10.1063/1.5021578$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>309,310,314,777,781,786,787,791,4499,23912,23913,25122,27906,27907,76134</link.rule.ids></links><search><contributor>Stoneking, Matthew R.</contributor><creatorcontrib>Saitoh, H.</creatorcontrib><creatorcontrib>Horn-Stanja, J.</creatorcontrib><creatorcontrib>Nißl, S.</creatorcontrib><creatorcontrib>Stenson, E. V.</creatorcontrib><creatorcontrib>Hergenhahn, U.</creatorcontrib><creatorcontrib>Pedersen, T. Sunn</creatorcontrib><creatorcontrib>Singer, M.</creatorcontrib><creatorcontrib>Dickmann, M.</creatorcontrib><creatorcontrib>Hugenschmidt, C.</creatorcontrib><creatorcontrib>Stoneking, M. R.</creatorcontrib><creatorcontrib>Danielson, J. R.</creatorcontrib><creatorcontrib>Surko, C. M.</creatorcontrib><title>Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields</title><title>AIP conference proceedings</title><description>We report the manipulation of positron orbits in a toroidal dipole magnetic field configuration realized with electric fields generated by segmented electrodes. When the toroidal circulation motion of positrons in the dipole field is coupled with time-varying electric fields generated by azimuthally segmented outer electrodes, positrons undergo oscillations of their radial positions. This enables quick manipulation of the spatial profiles of positrons in a dipole field trap by choosing appropriate frequency, amplitude, phase, and gating time of the electric fields. According to numerical orbit analysis, we applied these electric fields to positrons injected from the NEPOMUC slow positron facility into a prototype dipole field trap experiment with a permanent magnet. Measurements with annihilation γ-rays clearly demonstrated the efficient compression effects of positrons into the strong magnetic field region of the dipole field configuration. This positron manipulation technique can be used as one of essential tools for future experiments on the formation of electron-positron plasmas.</description><subject>Compressive strength</subject><subject>Dipoles</subject><subject>Electric fields</subject><subject>Electrodes</subject><subject>Electron-positron plasmas</subject><subject>Magnetic field configurations</subject><subject>Orbits</subject><subject>Permanent magnets</subject><subject>Plasma</subject><subject>Positrons</subject><subject>Variation</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2018</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kE1LAzEQhoMoWKsH_0HAm7A1H5uPPUrRKlS8KAgeQjab1JTtbkyyiv_era148zQD88wM7wPAOUYzjDi9wjOGCGZCHoAJZgwXgmN-CCYIVWVBSvpyDE5SWiNEKiHkBLw-6M6HodXZ9x3sHQx98jlu-1j7nKDvoIaND31r4UavOpu9gc7btoGfPr9B1w4mD-N6t4K2tSbH33k6BUdOt8me7esUPN_ePM3viuXj4n5-vSwCkTIXhDpESsQcYaWlvERaWCNQXRpGa061ripu6toa6ZixsuKccIukYDVlTakpnYKL3d0Q-_fBpqzW_RC78aUiGDOJRyNopC53VDI-_8RVIfqNjl8KI7WVp7Day_sP_ujjH6hC4-g3-x9wZA</recordid><startdate>20180123</startdate><enddate>20180123</enddate><creator>Saitoh, H.</creator><creator>Horn-Stanja, J.</creator><creator>Nißl, S.</creator><creator>Stenson, E. V.</creator><creator>Hergenhahn, U.</creator><creator>Pedersen, T. Sunn</creator><creator>Singer, M.</creator><creator>Dickmann, M.</creator><creator>Hugenschmidt, C.</creator><creator>Stoneking, M. R.</creator><creator>Danielson, J. R.</creator><creator>Surko, C. M.</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20180123</creationdate><title>Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields</title><author>Saitoh, H. ; Horn-Stanja, J. ; Nißl, S. ; Stenson, E. V. ; Hergenhahn, U. ; Pedersen, T. Sunn ; Singer, M. ; Dickmann, M. ; Hugenschmidt, C. ; Stoneking, M. R. ; Danielson, J. R. ; Surko, C. 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Sunn</creatorcontrib><creatorcontrib>Singer, M.</creatorcontrib><creatorcontrib>Dickmann, M.</creatorcontrib><creatorcontrib>Hugenschmidt, C.</creatorcontrib><creatorcontrib>Stoneking, M. R.</creatorcontrib><creatorcontrib>Danielson, J. R.</creatorcontrib><creatorcontrib>Surko, C. M.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saitoh, H.</au><au>Horn-Stanja, J.</au><au>Nißl, S.</au><au>Stenson, E. V.</au><au>Hergenhahn, U.</au><au>Pedersen, T. Sunn</au><au>Singer, M.</au><au>Dickmann, M.</au><au>Hugenschmidt, C.</au><au>Stoneking, M. R.</au><au>Danielson, J. R.</au><au>Surko, C. M.</au><au>Stoneking, Matthew R.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields</atitle><btitle>AIP conference proceedings</btitle><date>2018-01-23</date><risdate>2018</risdate><volume>1928</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>We report the manipulation of positron orbits in a toroidal dipole magnetic field configuration realized with electric fields generated by segmented electrodes. When the toroidal circulation motion of positrons in the dipole field is coupled with time-varying electric fields generated by azimuthally segmented outer electrodes, positrons undergo oscillations of their radial positions. This enables quick manipulation of the spatial profiles of positrons in a dipole field trap by choosing appropriate frequency, amplitude, phase, and gating time of the electric fields. According to numerical orbit analysis, we applied these electric fields to positrons injected from the NEPOMUC slow positron facility into a prototype dipole field trap experiment with a permanent magnet. Measurements with annihilation γ-rays clearly demonstrated the efficient compression effects of positrons into the strong magnetic field region of the dipole field configuration. This positron manipulation technique can be used as one of essential tools for future experiments on the formation of electron-positron plasmas.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5021578</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | AIP conference proceedings, 2018, Vol.1928 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_proquest_journals_2115810210 |
| source | AIP Journals Complete |
| subjects | Compressive strength Dipoles Electric fields Electrodes Electron-positron plasmas Magnetic field configurations Orbits Permanent magnets Plasma Positrons Variation |
| title | Manipulation of positron orbits in a dipole magnetic field with fluctuating electric fields |
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