Concept

Ion beam

Related publications (225)

Numerical modelling of electromagnetic turbulent transport of energetic ions in burning plasmas

Ambrogio Fasoli, Jonathan Graves, Wilfred Anthony Cooper, Xavier Lapillonne, Martin Jucker, Mattia Albergante

We investigate the redistribution of the neutral beam driven current in the presence of small scale turbulence in the ITER steady-state scenario. Gyrokinetic simulations show that anomalous transport of beam ions can be larger than collisional estimates. T ...

Institute of Physics2011

Automated Detection and Segmentation of Synaptic Contacts in Nearly Isotropic Serial Electron Microscopy Images

Marco Cantoni, Graham Knott

We describe a protocol for fully automated detection and segmentation of asymmetric, presumed excitatory, synapses in serial electron microscopy images of the adult mammalian cerebral cortex, taken with the focused ion beam, scanning electron microscope (F ...

2011

Beyond the lateral resolution limit by phase imaging

Christian Depeursinge, Muhammed Fatih Toy, Yann Jérôme Michel Pascal Cotte

We present a theory stating how to overcome the classical Rayleigh-resolution limit. It is based upon a new resolution criterion in phase of coherent imaging process and its spatial resolution is thought to be only SNR limited. Recently, the experimental o ...

SPIE2011

High-throughput engineering of infrared plasmonic nanoantenna arrays with nanostencil lithography

Hatice Altug, Serap Aksu, Min Huang

We demonstrate a novel fabrication approach for high-throughput fabrication of engineered infrared plasmonic nanorod antenna arrays with nanostencil lithography (NSL). NSL technique, relying on deposition of materials through a shadow mask, offers the flex ...

SPIE-INT SOC OPTICAL ENGINEERING2011

Cyclotron Designs for Ion Beam Therapy with Cyclinacs

Adriano Garonna

This thesis presents new superconducting compact (as opposed to separated-sector ) cyclotron designs for injection in CABOTO, a linac developed by the TERA Foundation delivering C6+/H2+ beams up to 400 MeV/u for ion beam therapy. This association of a vari ...

EPFL2011

UV Spectroscopic Studies of Cold Alkali Metal Ion–Crown Ether Complexes in the Gas Phase

Thomas Rizzo, Yoshiya Inokuchi

We report UV photodissociation (UVPD) spectra of dibenzo-18-crown-6 (DB18C6) complexes with alkali metal ions (Li+, Na+, K+, Rb+, and Cs+) in a cold, 22-pole ion trap. All the complexes show a number of vibronically resolved bands, but the vibronic structu ...

American Chemical Society2011

Interaction Between Fast Ions and Microturbulence in Thermonuclear Devices

Mattia Albergante

The work carried out in this thesis focuses on the interaction between fast ions and turbulence. The aim of the project is to explore this phenomenon and develop the numerical framework required for investigations on present day machines and predictions fo ...

EPFL2011

Microfabrication of Capillary Electrospray Emitters and ToF Characterization of the Emitted Beam

Herbert Shea, Caglar Ataman, Simon Dandavino

Microfabrication, assembly, and characterization of internally fed arrays of electrospray emitters for spacecraft propulsion are discussed. Several different emitter geometries were fabricated, and the sprayed beams from these emitters are characterized fo ...

2011

Direct polymer patterning by high energy reactive ion beam through stencil masks

Jürgen Brugger, Andreea Veronica Savu, Oscar Vazquez Mena

Polytetrafluoroethylene (PTFE) is a polymer with remarkable physico-chemical properties which has been used for membrane and biomedical applications [1]. This fluorpolymer is however difficult or cost- inhibiting to pattern with conventional methods with h ...

2010

Cyclinac medical accelerators using pulsed C6+/H + 2 ion sources

Adriano Garonna, Alberto Degiovanni

Charged particle therapy, or so-called hadrontherapy, is developing very rapidly. There is large pressure on the scientific community to deliver dedicated accelerators, providing the best possible treatment modalities at the lowest cost. In this context, t ...

2010

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.