Concept

Ion beam

Related publications (225)

Single crystal diamond micro-disk resonators by focused ion beam milling

Niels Quack, Teodoro Graziosi, Sichen Mi

We report on single crystal diamond micro-disk resonators fabricated in bulk chemical vapor deposition diamond plates (3 mm x 3 mm x 0.15 mm) using a combination of deep reactive ion etching and Focused Ion Beam (FIB) milling. The resulting structures are ...

AMER INST PHYSICS2018

Modelling of the neutron production in a mixed beam DT neutron generator

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Jonathan Graves, Yves Martin, Duccio Testa, Patrick Blanchard, Alessandro Pau, Cristian Sommariva, Henri Weisen, Richard Pitts, Yann Camenen, Jan Horacek, Javier García Hernández, Marco Wischmeier, Nicola Vianello, Mikhail Maslov, Federico Nespoli, Yao Zhou, David Pfefferlé, Davide Galassi, Antonio José Pereira de Figueiredo, Jonathan Marc Philippe Faustin, Liang Yao, Dalziel Joseph Wilson, Hamish William Patten, Samuel Lanthaler, Bernhard Sieglin, Otto Asunta

Compact DT neutron generators based on accelerators are often built on the principle of a mixed beam operation, meaning that deuterium (D) and tritium (T) are both present in the ion beam and in the target. Moreover, the beam consists of a mixture of ions ...

2018

Identification of the primary processes that lead to the drop in divertor target ion current at detachment in TCV

Kevin Henricus Annemarie Verhaegh, Mirko Wensing

Using SOLPS-ITER, we model a TCV conventional divertor discharge density ramp to understand the role of various processes in the loss of target ion current. We find that recombination is not a strong contributor to the rollover of the target ion current at ...

2018

Edge-contacted graphene with slope engineering by stencil lithography

Farzad Rezaeianaran

One approach to overcome the high contact resistance between 3D metals and 2D materials/heterostructures is employing edge contacts [1]. A low-resistance edge contact on boron nitride/graphene/boron nitride heterostructure using photolithography has been d ...

2018

Bioresorbable Frequency-Selective Magnesium Microresonators Fabricated by Ion Beam Etching

Matthieu Jean Michel Rüegg, Remo Blum

We present an innovative microfabrication process to fabricate magnesium-based bioresorbable microelectromechanical systems (MEMS) by ion beam etching. This process enables the fabrication of thin biodegradable water-soluble passive electronic components w ...

2018

Thermal desorption spectrometry of beryllium plasma facing tiles exposed in the JET tokamak

The phenomena of retention and de-trapping of deuterium (D) and tritium (T) in plasma facing components (PFC) and supporting structures must be understood in order to limit or control total T inventory in larger future fusion devices such as ITER, DEMO and ...

2018

Live observation of the oxidation of coated interconnects with environmental electron microscopy

Jan Van Herle, Cécile Hébert, Stéphane François Jean Poitel

Coatings on SOFC interconnect steels are complex and challenging to investigate due to the high number of chemical elements which are present and interact with each other. In this work, advanced electron microscopy techniques are used to study the steel ox ...

2018

Modelling of JET hybrid plasmas with emphasis on performance of combined ICRF and NBI heating

Jonathan Graves, Javier García Hernández

During the 2015-2016 JET campaigns, many efforts have been devoted to the exploration of high-performance plasma scenarios envisaged for DT operation in JET. In this paper, we review various key recent hybrid discharges and model the combined ICRF+NBI heat ...

2018

In-situ strength of individual silicon particles within an aluminium casting alloy

Andreas Mortensen, Goran Zagar, Martin Guillermo Mueller

Measurements of local strength are performed in-situ on individual silicon particles that constitute the second phase of aluminium alloy A356. Particles are shaped using Focused Ion Beam (FIB) milling such that, upon the application of a compressive force ...

Elsevier2018

Size control of self-organized gold nanoparticles on nanopatterned single crystal diamond

Olivier Martin, Niels Quack, Christian Santschi, Sichen Mi

Surface patterning using plasmonic nanoparticles has attracted increasing interest owing to their wide use in sensing, imaging and medical applications. In this report we demonstrate bottom-up engineering of size distribution of gold nanoparticles (AuNPs) ...

IEEE2018

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