122 citations · 215 across the 6 of their papers we have counts for
6 papers
Reducing the hydrogen content in liquid helium
Dominik Sifrig, Sascha Martin, Dominik Zumbühl +2
Helium has the lowest boiling point of any element in nature at normal atmospheric pressure. Therefore, any unwanted substance like impurities present in liquid helium will be froz…
Anisotropic Etching of Graphite and Graphene in a Remote Hydrogen Plasma
Dorothee Hug, Simon Zihlmann, Mirko K. Rehmann +6
We investigate the etching of a pure hydrogen plasma on graphite samples and graphene flakes on SiO and hexagonal Boron-Nitride (hBN) substrates. The pressure and distance depe…
Plasma cleaning of ITER first mirrors in magnetic field
Lucas Moser, Roland Steiner, Frank Leipold +3
To avoid reflectivity losses in ITER optical diagnostic systems, plasma sputtering of metallic First Mirrors is foreseen in order to remove deposits coming from the main wall (main…
Pico- and nanosecond laser ablation of mixed tungsten / aluminium films
M. Wisse, L. Marot, R. Steiner +5
In order to extend the investigation of laser-assisted cleaning of ITER-relevant first mirror materials to the picosecond regime, a commercial laser system delivering 10 picosecond…
Quantum Hall effect in graphene with superconducting electrodes
Peter Rickhaus, Markus Weiss, Laurent Marot +1
We have realized an integer quantum Hall system with superconducting contacts by connecting graphene to niobium electrodes. Below their upper critical field of 4 tesla, an integer…
Erosion yields of carbon under various plasma conditions in Pilot-PSI
K. Bystrov, J. Westerhout, M. Matveeva +4
Fine-grain graphite targets have been exposed to ITER divertor relevant plasmas in Pilot-PSI to address material migration issues in fusion devices. Optical emission spectroscopy a…