Publications in refereed journals and proceedings journals:<\/b><\/p>\n
2019<\/strong><\/p>\n E. Varberg, \u00c5. Fredriksen, 2017<\/strong><\/p>\n N. Gulbrandsen, \u00c5. Fredriksen, 2015<\/b><\/p>\n N. Gulbrandsen, \u00c5. Fredriksen, J. Carr Jr., and E. Scime, 2013<\/strong><\/p>\n N. Gulbrandsen, W. J. Miloch, and \u00c5. Fredriksen, 2011<\/b><\/p>\n \u00c5. Fredriksen, N. Gulbrandsen, W.J. Miloch, L. N. Mishra, N. Gulbrandsen, W.J. Miloch, \u00c5. Fredriksen, W. J. Miloch, N. Gulbrandsen, L. N. Mishra, and \u00c5. Fredriksen, 2010<\/b><\/p>\n W. J. Miloch, N. Gulbrandsen, L. N. Mishra, and \u00c5. Fredriksen, \u00c5. Fredriksen, L.N. Mishra, N. Gulbrandsen, and W. Miloch, \u00c5. Fredriksen, L. N. Mishra, and H. S. Byhring, 2008<\/b><\/p>\n H. S. Byhring, C. Charles, A. Fredriksen, and R. W. Boswell, Talks, posters, proceedings, and reports, not refereed:<\/b><\/p>\n 2017<\/strong> Osnes, Sindre Gulbrandsen, Nj\u00e5l 2016<\/strong> Varberg, Erik 2015<\/strong> Talk: \u00c5. Fredriksen and O. Havnes, 2014 Talk: N. Gulbrandsen and \u00c5. Fredriksen, Poster: N. Gulbrandsen, \u00c5. Fredriksen, Poster: N. Gulbrandsen and \u00c5. Fredriksen, 2013<\/strong><\/p>\n Talk: \u00c5. Fredriksen and N. Gulbrandsen, Invited talk: 2012 Poster: Gulbrandsen, Nj\u00e5l; Fredriksen, \u00c5shild; Carr Jr, Jerry; Scime, Earl; McCarren, Dustin W.; VanDervort, Robert; Galante, Matthew E.; Magee, Richard M.; Lusk, Greg; Sears, Stephanie H., Poster: \u00c5. Fredriksen, N. Gulbrandsen, W. J. Miloch, A. Hansen, and E. Scime, Talk: A. Fredriksen, N. Gulbrandsen, W. J. Miloch, Christian Schregel: Studies of plasma potential with emissive probes in the low temperature plasma experiment NJORD 2011 Talk:\u00a0<\/i>September 21. N. Gulbrandsen, W.J. Miloch, \u00c5. Fredriksen, Invited talk:\u00a0<\/i>August 13-20 2011 A. Fredriksen, W. J. Miloch, N. Gulbrandsen, M. N. Lekha, Poster:\u00a0<\/i>August 13-20 2011. N. Gulbrandsen, W. J. Miloch, A. Fredriksen, Interpretation of ion velocity distributions measured with a retartding field energy analyzer (RFEA) in a inducitively coupled helicon plasma,<\/em> Talk:\u00a0<\/i>\u00c5. Fredriksen, 2010 Poster:\u00a0<\/i>L. N. Mishra, and \u00c5 Fredriksen, Invited talk:\u00a0\u00c5. Fredriksen, L. N. Mishra, N. Gulbrandsen, and W. Miloch, Poster:\u00a0\u00c5. Fredriksen1, L. N. Mishra, and N. Gulbrandsen, 2009\u00a0<\/b> Invited talk:\u00a0\u00c5. Fredriksen, H.S. Byhring, L.N. Mishra, C. Charles, and R. Boswell, Report:\u00a0A. Hansen,<\/p>\n 2008\u00a0<\/b> H. S.\u00a0 Byhring, C. Charles, \u00c5. Fredriksen, and R.W. Boswell, 2007<\/b><\/p>\n \u00c5. Fredriksen, G. Tribulato, and C. Watts, G. Tribulato, \u00a0<\/b><\/p>\n","protected":false},"excerpt":{"rendered":" Publications in refereed journals and proceedings journals: 2019 E. Varberg, \u00c5. Fredriksen, \u2018Effect of permanent magnets on plasma confinement and ion beam properties in a double layer helicon plasma source\u2019, J. Plasma Phys., (2019), 85, 905850310. doi:10.1017\/S0022377819000412 2017 N. Gulbrandsen, … Continue reading
\n\u2018Effect of permanent magnets on plasma confinement and ion beam properties in a double layer helicon plasma source\u2019,
\nJ. Plasma Phys., (2019), 85, 905850310<\/a>. doi:10.1017\/S0022377819000412<\/p>\n
\n\u2018RFEA Measurements of High-Energy Electrons in a Helicon Plasma Device with Expanding Magnetic Field\u2019,
\nGulbrandsen&al_fphy-05-00002_RFEA_High-energyElectrons<\/a>.
\nMunin:\u00a0https:\/\/munin.uit.no\/handle\/10037\/12272\u00a0<\/a><\/p>\n
\n\u2018A comparison of ion beam measurements by retarding field energy analyzer and laser induced fluorescence in helicon plasma devices\u2019,
\nPhys. Plasmas 22, 033505 (2015).<\/a><\/p>\n
\n\u2018Interpretation of ion velocity distributions measured with a grounded retarding field energy analyzer (RFEA) in an inductively coupled helicon plasma.\u2019
\nContrib. Plasma Phys., 53, 27 (2013)<\/a>.<\/p>\n
\n\u2018On the use of a retarding field energy analyzer for plasma flow analysis\u2019,
\nProceedings of 9th International Workshop on Electrical Probes in Magnetized Plasmas (IWEP 2011), Iasi, Romania, 2011.
\nContrib. Plasma Phys., 53, 86 (2013)<\/a><\/p>\n
\n\u2019Interpretation of ion velocity distributions measured with a grounded retarding field energy analyzer (RFEA) in an inductively coupled helicon plasma.
\nProceedings of 9th International Workshop on Electrical Probes in Magnetized Plasmas (IWEP 2011), Iasi, Romania, 2011.
\nContrib. Plasma Phys., 53, 27 (2013)<\/a><\/p>\n
\n\u2019 Ion velocity distributions in the sheath and presheath of a biased object in plasma\u2019
\nPhys. Plasmas,\u00a0 103703\u00a017<\/b>DOI: 10.1063\/1.3488252 (2010)<\/a>b<\/p>\n
\n\u2019 The role of acceptance angle in measurements with ion energy analyzers:
\nStudy by numerical simulations\u2019,
\nAppl. Phys. Lett.,97, 261501\u00a0 (2010)<\/a><\/p>\n
\n\u2019On the measurement of subsonic flow in a capacitively coupled helicon plasma source\u2019,
\nJ. Phys.: Conf. Series\u00a0257\u00a0012019 (2010)<\/a>
\nUiT Munin:\u00a0https:\/\/munin.uit.no\/handle\/10037\/3560<\/a><\/p>\n
\n\u2018The effects of downstream magnetic field on current-free double
\nlayers and beam formation in the Njord helicon plasma advice\u2019,
\nPlasma Sources Sci. and Technol.,\u00a019\u00a0034009 (2010)<\/a><\/p>\n
\nDouble layer in an expanding plasma – Simultaneous upstream and downstream measurements.
\nPhys. Plasmas,15, 102113 (2008)<\/a>
\nErratum in Phys. Plasmas,15<\/b>, 079903 (2009)<\/p>\n
\nPoster: E. Varberg, \u00c5. Fredriksen,
\n\u2018Effect of permanent magnets on plasma confinement and ion beams from a helicon plasma source.\u2019<\/em>
\nXXXIII International Conference on Phenomena in Ionized Gases; July 9-14 2017, Lisbon, Portugal.<\/p>\n
\n‘Beam and plasma properties downstream from positively biased source chamber’<\/em>
\n(Master thesis; Mastergradsoppgave, 2017-06-06)<\/a><\/p>\n
\n‘Diagnostics of Ion Beam and Current Free Double Layer in Helicon Plasma Devices with Expanding Magnetic Field ‘<\/em>
\n(Doctoral thesis; Doktorgradsavhandling, 2017-09-18)<\/a><\/p>\n
\nPoster: N. Gulbrandsen and \u00c5. Fredriksen,
\n\u2018Observations of high-energy electrons from a current-free double layer.\u2019<\/em>
\nGaseous Electronics Conference (GEC), October 10-14, 2016, Bochum, Germany.<\/p>\n
\nEffect of permanent magnets on plasma confinement and ion beam generation in a double layer helicon plasma source<\/em>
\n(Master thesis; Mastergradsoppgave, 2016-06-01)<\/a><\/p>\n
\nPoster: N. Gulbrandsen and \u00c5. Fredriksen,
\n\u2018Observations of hot electrons from current-free double layer\u2019<\/em>
\nIPELS, August 23-28, 2015, Pitlochry, Scotland.<\/p>\n
\n\u2018Space Simulation Chamber (SSC) for space instrumentation testing in Troms\u00f8\u2019<\/em>,
\nNordic Physics Days, June 9-12, 2015, Trondheim.<\/p>\n
\n\u2018Beam Formation in a weakly collisional expanding RF inductively coupled plasma\u2019,<\/em>
\nXXXI URSI General Assembly and Scientific Symposium, August 16-23, Beijing, China.<\/p>\n
\n\u2018Comparison of ion beam diagnostics with laser induced fluorescence (LIF) and retarding field energy analyzer (RFEA) in a low-temperature RF-plasma.\u2019<\/em>
\n41st EPS Conference on Plasma Physics 2014-06-23 – 2014-06-27 2014.<\/p>\n
\n\u2018The role of collisions for beam formation in a plasma potential gradient.\u2019<\/em>
\n41st EPS Conference on Plasma Phys. June 23-27, 2014,<\/p>\n
\nIon beam formation in a plasma with expanding magnetic field,<\/em>
\nFysikerm\u00f8tet, August 7-10, Bergen, Norway.<\/p>\n
\n\u00c5. Fredriksen, N. Gulbrandsen, and W. Miloch,
\nPotential and ion flow profiles in a Helicon-source plasma<\/em>
\nIPELS, July 1-5, 2013, Hakuba, Japan.<\/p>\n
\nA comparison of ion velocity measurements from retarding field energy analyzer (RFEA) and laser induced fluorescence (LIF) in expanding helicon plasma.<\/em>
\n54th Annual Meeting of the APS Division of Plasma Physics; 2012-10-29 – 2012-12-02<\/p>\n
\n‘ Plasma flows in expanding magnetic field: simulations, probe and Laser Induced Fluorescence (LIF) measurements’,<\/em>
\nXXI Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG), July 10-14 2012, Viana do Castelo, Portugal<\/p>\n
\n‘Plasma flows in expanding magnetic field’,<\/em>
\n39th EPS Conf. on Plasma Physics\/16th Int. Conf. on Plasma Physics,
\nJuly 2-6, 2012, Stockholm, Sweden.<\/p>\n
\n(Master thesis; Mastergradsoppgave, 2012-11-02)<\/a>
\n<\/span><\/p>\n
\n<\/b>Talk:\u00a0\u00a0<\/i>September 21. \u00c5. Fredriksen, N. Gulbrandsen, W.J. Miloch, L. N. Mishra,
\n\u2018On the use of a retarding field energy analyzer for plasma flow analysis\u2019,<\/em>
\n9th International Workshop on Electrical Probes in Magnetized Plasmas (IWEP 2011),
\nIasi, Romania, 2011.
\nTalk(pdf)<\/p>\n
\n\u2019Interpretation of ion velocity distributions measured with a grounded retarding field energy analyzer (RFEA) in an inductively coupled helicon plasma.<\/em>
\n9th International Workshop on Electrical Probes in Magnetized Plasmas (IWEP 2011),
\nIasi, Romania, 2011.
\nTalk(ppt)<\/p>\n
\nThe role\u00a0 of sheath and acceptance angle in front of a retarding field energy\u00a0 analyzer for plasma flow analysis,<\/em>
\n165H09.3, 30th URSI General Assembly and Scientific Symposium of International Union of Radio Science, Istanbul, Turkey, 2011.
\nTalk (pdf)<\/p>\n
\n240HP1.7, 30th URSI General Assembly and Scientific Symposium of International Union of Radio Science, Istanbul, Turkey, 2011.
\nPoster(pdf)<\/p>\n
\n\u2018Plasma flows in the laboratory plasma of the Njord device\u2019<\/em>
\nFysikerm\u00f8tet, June 20-22, 2011, Oslo, Norway.
\nTalk(pdf)<\/p>\n
\n<\/b>Talk:\u00a0W.J. Miloch, L. Mishra, N. Gulbrandsen, \u00c5. Fredriksen,
\nNumerical simulations of the influence of an ion beam on the plasma analyzer performance in Njord helicon device<\/em>,
\n63rd Annual Gaseous Electronics Conference & 7th International Conference on Reactive Plasmas, Paris, France, October 4\u20138, 2010 2010.
\nhttp:\/\/meetings.aps.org\/link\/BAPS.2010.GEC.UF4.6<\/a><\/p>\n
\nEvolution of electron energy distribution and its diagnostics on high density electron cyclotron resonance hydrogen plasma,<\/em>
\nBulletin of the American Physical Society, 63rd Annual Gaseous Electronics Conference and 7th International Conference on Reactive Plasmas, 55, Number 7\u00a0 Paris, France, October 4\u20138, 2010 .
\nhttp:\/\/meetings.aps.org\/link\/BAPS.2010.GEC.DTP.30<\/a><\/p>\n
\n\u2018Formation of beams and flows in inductively coupled low-temperature plasmas\u2019,<\/em>
\n25th SPIG Aug 30-Sept 3 2010, Donji Milanovac, Serbia
\nTalk(pdf)<\/p>\n
\n\u2019Magnetic field configuration, generation of radio-frequency (RF) harmonics and high-energy electrons in a helicon plasma source\u2019,<\/em>
\nEPS Plasma Physics, June 21-25, 2010, Dublin, Ireland.
\nPoster(pdf)<\/p>\n
\nTalk:\u00a0\u00c5. Fredriksen, L. N. Mishra, H. S. Byhring, C. Charles, R. Boswell,
\n\u2018Confinement and instabilities in Njord – dependence on magnetic field geometry\u2019,<\/em>
\nIPELS June 8-12, 2009, Djur\u00f6neset, Sverige.
\nTalk (pdf)<\/p>\n
\n\u2018The formation of beams and instabilities in Njord \u2013 a new plasma device for space related experiments\u2019,<\/em>
\nXXIX ICPIG July 12-17 2009, Cancun, Mexico.
\nTalk (pdf)<\/p>\n
\nPoster and proceeding:\u00a0\u00a0\u00c5. Fredriksen, H. S. Byhring, C. Charles, L. N. Mishra, and R. W. Boswell;
\n\u201cDouble layer beam formation in the Njord device and its dependence on magnetic field configuration\u201d,<\/em>
\n35th EPS Conference on Plasma Phys. Hersonissos, 9 – 13 June 2008
\nPoster (pdf)
\nProceeding (pdf)\u00a0\u00a0Europhysics Conference Abstracts Vol. 32F (2008)<\/a>, P-1.191<\/p>\n
\n[Talk]\u201cDouble layer in an inductively coupled laboratory plasma – simultaneous upstream and downstream measurements\u201d<\/em>
\n37th COSPAR Scientific Assembly, 13-20 juli, 2008, Montreal, Canada.<\/p>\n
\n\u201cFirst results from the Njord device for space related plasma experiments\u201d<\/em>
\nThe Norwegian Physicists Meeting, Troms\u00f8, August 8-10, and
\nIPELS 2007 (Interrelationship between Plasma Experiments in Laboratory and
\nSpace), August 5-10, Palm Cove Resort, Cairns, Australia
\nPoster (pdf)<\/a><\/p>\n
\n\u201cCharacterization of a magnetized plasma in cylindrical geometry\u201d<\/em><\/a>
\nM. Scent Thesis<\/p>\n