Dr. Roland Friedl

Wissenschaftlicher Mitarbeiter
Experimentelle Plasmaphysik
Telefon: +49 821 598 3323
Fax: +49 821 598 3302
E-Mail:
Raum: 108 (R)
Adresse: Universitätsstraße 1 (Physik Nord), 86159 Augsburg
Publikationsliste

ORCID

Roland Friedl
2021 | 2020 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2010

2021

Caecilia Fröhler-Bachus, Roland Friedl, Stefan Briefi und Ursel Fantz
Absolute radiometric calibration of a VUV spectrometer in the wavelength range 46-300 nm

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2020

A. Heiler, Roland Friedl und Ursel Fantz
Application of a Langmuir probe AC technique for reliable access to the low energy range of electron energy distribution functions in low pressure plasmas

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Sofia Cristofaro, Roland Friedl und Ursel Fantz
Correlation of Cs flux and work function of a converter surface during long plasma exposure for negative ion sources in view of ITER

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Roland Friedl, David Rauner, A. Heiler und Ursel Fantz
Dissociative recombination and its impact on the line profile of the hydrogen Balmer series

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Sofia Cristofaro, Roland Friedl und Ursel Fantz
Effect of a low pressure low temperature hydrogen plasma on the work function of europium

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Sofia Cristofaro, Roland Friedl und Ursel Fantz
Effect of a low pressure low temperature hydrogen plasma on the work function of europium

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Roland Friedl, Ursel Fantz, Isabel Pilottek, Daniel Schmid und Saskia Steibel
Spatio-temporal structure and emission of a large plasmoid in atmosphere

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Frederik Merk, Roland Friedl, Stefan Briefi, Caecilia Fröhler-Bachus und Ursel Fantz
The role of photon self-absorption on the H (n= 2) density determination by means of VUV emission spectroscopy and TDLAS in low pressure plasmas

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2018

Roland Friedl, F. Merk, C. Hopf und Ursel Fantz
Laboratory experiment for the development of a laser neutralizer in view of DEMO NNBI

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Ursel Fantz, C. Hopf, Roland Friedl, Sofia Cristofaro, B. Heinemann, S. Lishev und A. Mimo
Technology developments for a beam source of an NNBI system for DEMO

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Roland Friedl, Sofia Cristofaro und Ursel Fantz
Work function of Cs-free materials for enhanced H− surface production

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2017

Roland Friedl, Uwe Kurutz und Ursel Fantz
Efficiency of Cs-free materials for negative ion production in H2 and D2 plasmas

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Roland Friedl und Ursel Fantz
Influence of H2 and D2 plasmas on the work function of caesiated materials

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Uwe Kurutz, Roland Friedl und Ursel Fantz
Investigations on Cs-free alternatives for negative ion formation in a low pressure hydrogen discharge at ion source relevant parameters

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Ursel Fantz, Stefan Briefi, Roland Friedl, C. Fröhler, David Rauner und Dirk Wünderlich
Quantification of UV/VUV photon fluxes of hydrogen plasmas by spectroscopy and by collisional radiative modelling

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Sofia Cristofaro, Roland Friedl und Ursel Fantz
Simultaneous measurements of work function and H‒ density including caesiation of a converter surface

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Ursel Fantz, C. Hopf, Dirk Wünderlich, Roland Friedl, M. Fröschle, B. Heinemann, W. Kraus, Uwe Kurutz, R. Riedl, R. Nocentini und L. Schiesko
Towards powerful negative ion beams at the test facility ELISE for the ITER and DEMO NBI systems

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2016

Roland Friedl
Enhancing the accuracy of the Fowler method for monitoring non-constant work functions

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2015

Ursel Fantz, Roland Friedl und Stefan Briefi
Correlation of size, velocity, and autonomous phase of a plasmoid in atmosphere with the dissipated energy

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Roland Friedl und Ursel Fantz
Temperature dependence of the work function of caesiated materials under ion source conditions

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2014

Dirk Wünderlich, Christian Wimmer und Roland Friedl
A collisional radiative model for low-pressure hydrogen–caesium plasmas and its application to an RF source for negative hydrogen ions

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Roland Friedl und Ursel Fantz
Fundamental studies on the Cs dynamics under ion source conditions

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Ursel Fantz, Stefan Briefi, Roland Friedl, Martin Kammerloher, Johannes Kolbinger und Alexander Oswald
Initial phase of a large atmospheric plasmoid generated above a water surface

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2013

Roland Friedl
Experimental investigations on the caesium dynamics in H2/D2 low temperature plasmas

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Ursel Fantz, S. Kalafat, Roland Friedl und Stefan Briefi
Generation of an atmospheric plasmoid from a water discharge: an analysis of the dissipated energy

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Roland Friedl und Ursel Fantz
Influence of cesium on the plasma parameters in front of the plasma grid in sources for negative hydrogen ions

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M. P. Stockli, D. Faircloth, W. Kraus, A. Ando, D. S. Bollinger, Stefan Briefi, Ursel Fantz, Roland Friedl, M. Kashiwagi, D. King, H. Koivisto, B. X. Han, J. Lettry, Y. Takeiri, O. Tarvainen, K. Tsumori, R. F. Welton und Christian Wimmer
Workshop on performance variations in H− ion sources 2012: PV H−12

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2012

Ursel Fantz, Roland Friedl und M. Fröschle
Controllable evaporation of cesium from a dispenser oven

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Roland Friedl und Ursel Fantz
Spectral intensity of the N-2 emission in argon low-pressure arc discharges for lighting purposes

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2010

Ursel Fantz, Stefan Briefi und Roland Friedl
Modelling the radiation of diatomic molecules in low pressure discharges

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Roland Friedl, Ursel Fantz und F. Vogel
Spectral intensity or the NЇ emission in rare gas low-pressure arc discharges

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