Åshild Fredriksen
Professor Emerita / Plasma and Space Physics
Lisa Marie Buschmann,
Åshild Fredriksen
:
Axial and radial development of the hot electron distribution in a helicon plasma source, measured by a retarding field energy analyzer (RFEA)
Ingrid Mann,
Sveinung Viggo Olsen,
Yngve Eilertsen,
Henriette Marie Tveitnes Trollvik,
Adrien Pinneau,
Sabina Strmic Palinkas
et al.:
Mesospheric Dust Studies with MXD2
ESA SP 2022
Tarjei Antonsen,
Ingrid Mann,
Jakub Vaverka,
Libor Nouzak,
Åshild Fredriksen
:
A comparison of contact charging and impact ionization in low-velocity impacts: implications for dust detection in space
Åshild Fredriksen,
Hans L Pécseli,
Jan Karsten Trulsen
:
Anomalous transport due to large coherent structures in a magnetized toroidal plasma
Pascal Sado,
Åshild Fredriksen
:
Detailed density and ion energy profiles downstream of a small ECR plasma source
IEEE Transactions on Plasma Science 2020 DOI
Ove Havnes,
Tarjei Antonsen,
Gerd Baumgarten,
Thomas W. Hartquist,
Alexander Biebricher,
Åshild Fredriksen
et al.:
A new method of inferring the size, number density, and charge of mesospheric dust from its in situ collection by the DUSTY probe
Tinna Gunnarsdottir,
Henriette Trollvik,
Ingrid Mann,
Sveinung viggo Olsen,
Yngve Eilertsen,
Tarjei Antonsen
et al.:
CHARGING AND DETECTION OF MESOSPHERIC DUST WITH INSTRUMENT SPID ON G-CHASER ROCKET
ESA SP 2019 ARKIV
Ingrid Mann,
Libor Nouzák,
Jakub Vaverka,
Tarjei Antonsen,
Åshild Fredriksen,
Karine Issautier
et al.:
Dust observations with antenna measurements and its prospects for observations with Parker Solar Probe and Solar Orbiter
Henriette Marie Tveitnes Trollvik,
Tinna Gunnarsdottir,
Ingrid Mann,
Sveinung viggo Olsen,
Erlend Sømhovd Restad,
Tarjei Antonsen
et al.:
Observation of mesospheric dust and ionospheric conditions during the G-chaser rocket campaign
ESA SP 2019 ARKIV
Erik Varberg,
Åshild Fredriksen
:
Effect of permanent magnets on plasma confinement and ion beam properties in a double layer helicon plasma source
Åshild Fredriksen,
Hans Pecseli,
Jan Karsten Trulsen
:
A solvable model for the basic properties of a simple magnetized plasma torus
Njål Gulbrandsen,
Åshild Fredriksen
:
RFEA Measurements of High-Energy Electrons in a Helicon Plasma Device with Expanding Magnetic Field
Sudeep Bhattacharjee,
Åshild Fredriksen,
Sayan Chandra
:
Fluctuations in electron cyclotron resonance plasma in a divergent magnetic field
Anne Schad Bergsaker,
Åshild Fredriksen,
Hans Pecseli,
Jan Karsten Trulsen
:
Models for the probability densities of the turbulent plasma flux in magnetized plasmas
Physica Scripta 2015 DOI
Ove Havnes,
Tarjei Antonsen,
Thomas W. Hartquist,
Åshild Fredriksen,
John M.C. Plane
:
The Tromsø programme of in situ and sample return studies of mesospheric nanoparticles
Journal of Atmospheric and Solar-Terrestrial Physics 2015 DOI
Njål Gulbrandsen,
Åshild Fredriksen,
Jerry Carr, Jr,
Earl Scime
:
A comparison of ion beam measurements by retarding field energy analyzer and laser induced fluorescence in helicon plasma devices
Physics of Plasmas 2015 DOI
Njål Gulbrandsen,
Åshild Fredriksen
:
The role of collisions for beam formation in a plasma potential gradient
2014 FULLTEKST
Anne Schad Bergsaker,
Åshild Fredriksen,
Hans Pecseli,
Jan Karsten Trulsen
:
Analytical models for skewness-kurtosis relations in turbulent transport
2014 FULLTEKST
Åshild Fredriksen,
Njål Gulbrandsen
:
Beam formation in a weakly collisional expanding, inductively coupled plasma.
IEEE Sarnoff Symposium 2014 SAMMENDRAG / DOI
Ove Havnes,
Tarjei Antonsen,
Åshild Fredriksen,
Sveinung Viggo Olsen,
Yngve Eilertsen,
Inge o Strømmesen
:
ICON, A MASS ANALYZER FOR THE ICE CONTENT OF NLC/PMSE PARTICLES
ESA SP 2013
Åshild Fredriksen,
Wojciech Jacek Miloch,
Njål Gulbrandsen,
Lekha Nath Mishra
:
On the Use of a Retarding Field Energy Analyzer for Plasma Flow Analysis
Contributions to Plasma Physics 2013 DOI
Njål Gulbrandsen,
Wojciech Jacek Miloch,
Åshild Fredriksen
:
Interpretation of Ion Velocity Distributions Measured with a Grounded Retarding Field Energy Analyzer (RFEA) in an Inductively Coupled Helicon Plasma
Contributions to Plasma Physics 09. January 2013 DOI
L. Fattorini,
Åshild Fredriksen,
Hans Pecseli,
C. Riccardi,
Jan Karsten Trulsen
:
Turbulent transport in a toroidal magnetized plasma
Plasma Physics and Controlled Fusion 2012 DOI
Ingrid Mann,
Sveinung viggo Olsen,
Yngve Eilertsen,
Henriette Trollvik,
Adrien Pinneau,
Sabina Strmic Palinkas
et al.:
Plans for Mesospheric Dust Studies with MXD2
2022
Åshild Fredriksen,
Ingrid Mann,
Tarjei Antonsen,
Michael DeLuca,
John Fontanese,
Zoltan Sternovsky
:
Laboratory simulations of hypervelocity dust impacts on spacecraft
2019
Tinna Gunnarsdottir,
Henriette Trollvik,
Ingrid Mann,
Sveinung viggo Olsen,
Yngve Eilertsen,
Tarjei Antonsen
et al.:
CHARGING AND DETECTION OF MESOSPHERIC DUST WITH INSTRUMENT SPID ON G-CHASER ROCKET
2019
Ingrid Mann,
Jøran Idar Moen,
Kolbjørn Blix,
Åshild Fredriksen,
Rune Graversen,
Ove Havnes
et al.:
MESOSPHERIC AND MIDDLE ATMOSPHERIC STUDIES IN NORWAY AND INTERNATIONAL COLLABORATION
2019
Ingrid Mann,
Tinna Gunnarsdottir,
Henriette Trollvik,
Åshild Fredriksen,
Tarjei Antonsen,
Ove Havnes
:
Nanoparticles in Earth's ionosphere – detection from rockets
2019
Pascal Sado,
Åshild Fredriksen
:
On confinement and plasma acceleration from a small ECR plasma source
2019 ARKIV
Henriette Marie Tveitnes Trollvik,
Tinna Gunnarsdottir,
Ingrid Mann,
Sveinung viggo Olsen,
Erlend Restad,
Tarjei Antonsen
et al.:
Observation of mesospheric dust and ionospheric conditions during the G-chaser rocket campaign
2019 ARKIV
Lisa Marie Buschmann,
Njål Gulbrandsen,
Åshild Fredriksen
:
Energetic electrons upstream and downstream of a current-free double
layer (CFDL) in an inductively coupled helicon plasma.
2019
Åshild Fredriksen
:
Activity and future plans for studies of dust in the mesosphere at Dep. Physics and Technology, UIT
2019
Åshild Fredriksen,
Njål Gulbrandsen,
Lisa Marie Buschmann,
Erik Varberg
:
On the ion beams and energetic electrons through a current-free double layer(CFDL)
2019
Åshild Fredriksen
:
Laboratory plasma simulation of impacts
2018
Åshild Fredriksen,
Njål Gulbrandsen,
Lisa Buschmann
:
Energetic electrons near a current-free double layer in inductively coupled helicon plasma.
2018
Tarjei Antonsen,
Ove Havnes,
Åshild Fredriksen,
Martin Friedrich,
Zoltan Sternovsky,
John M.C. Plane
et al.:
Mesospheric dust observations during the MAXIDUSTY campaign
2017
Erik Varberg,
Åshild Fredriksen
:
Effect of permanent magnets on plasma confinement and ion
beams from a helicon plasma source
2017 FULLTEKST
Åshild Fredriksen
:
Women in Physics-Norway
2017
Kenneth Nilsen,
Åshild Fredriksen,
Ingrid Mann
:
Plasma Clouds from Vacuum Arcs in a Laboratory Experiment - A Possible Simulation Tool for Impact Clouds from Hypervelocity Dust Impact?
2017
Anne Schad Bergsaker,
Åshild Fredriksen,
Hans Pecseli,
Jan Karsten Trulsen
:
Analytical models for skewness-kurtosis relations in turbulent transport
2014
Åshild Fredriksen,
Njål Gulbrandsen
:
Beam formation in a weakly collisional expanding, inductively coupled plasma.
2014
Njål Gulbrandsen,
Åshild Fredriksen
:
Comparison of ion beam diagnostics with laser induced fluorescence (LIF) and retarding field energy analyzer (RFEA) in a low-temperature RF-plasma
2014
Njål Gulbrandsen,
Åshild Fredriksen
:
The role of collisions for beam formation in a plasma potential gradient
2014
Åshild Fredriksen
:
On ion flow measurements in low-temperature plasmas
2013
Åshild Fredriksen
:
Introduction to the Physics Department and Space research at UiT
2013
Åshild Fredriksen
:
Beam and flow studies in an expanding plasma
2013
Åshild Fredriksen
:
Ny rocket science: Plasmaraketter setter fart på romfartøyer
2013
Åshild Fredriksen,
Njål Gulbrandsen
:
Ion beam formation in a plasma with expanding magnetic field
2013
Åshild Fredriksen,
Njål Gulbrandsen,
Wojciech Jacek Miloch
:
Potential and ion flow profiles in a Helicon-source plasma
2013
Bodil Holst,
Åshild Fredriksen,
Anne Borg
:
On the Recruitment and Participation of Women in Physics: A Report from Norway
AIP Conference Proceedings 2013
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Research interests
Experimental plasma physics, acceleration and heating processes, electric double layers, turbulence and turbulent structures, plasma diagnostics.