Publications related to Tachyon

Flexural strength of micron-scale plate-like silicon in aluminum

Andreas Mortensen, Goran Zagar, Martin Guillermo Mueller, Marta Fornabaio

Mechanical properties of composite materials and alloys are strongly influenced by the intrinsic mechanical properties of the reinforcing phases they contain; however, due to the irregular shape and small size of particulate reinforcements, measuring their ...

2015

Definition of the radiation fields for the JET gamma-ray spectrometer diagnostics

Patrick Blanchard

The JET gamma-ray diagnostics system provides information on the behaviour of fast particles within the tokamak plasma. Information on the spatial distribution of the interacting fast particles is obtained from the gamma-ray cameras, while energy distribut ...

Elsevier Science Sa2013

Bifurcated Helical Core Equilibrium States in Tokamaks

Olivier Sauter, Basil Duval, Stefano Coda, Jonathan Graves, Wilfred Anthony Cooper, Holger Reimerdes, Benoît Labit, Antoine Pochelon, Trach-Minh Tran, David Pfefferlé, Federico David Halpern, Daniele Brunetti

Tokamaks with weak to moderate reversed central shear in which the minimum inverse rotational transform (safety factor) qmin is in the neighbourhood of unity can trigger bifurcated magnetohydrodynamic equilibrium states, one of which is similar to a satura ...

IOP Publishing2013

Axial phase measurements of light interacting with microstructures

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We present an experimental method to study field structures of highly confined light after interaction with microstructures. A high-resolution interference microscope (HRIM) allows us to measure the three-dimensional (3D) amplitude and phase distributions ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Bifurcated Helical Core Equilibrium States in Tokamaks

Olivier Sauter, Basil Duval, Stefano Coda, Jonathan Graves, Wilfred Anthony Cooper, Holger Reimerdes, Benoît Labit, Antoine Pochelon, David Pfefferlé, Federico David Halpern, Daniele Brunetti, Jonathan Rossel, Mattia Albergante

Tokamaks with weak to moderate reversed central shear in which the minimum rotational transform

q_{min}

is in the neighbourhood of unity can trigger bifurcated MagnetoHydrodynamic (MHD) equilibrium states, one of which is similar to a saturated ideal ...

2012

Drift Stabilisation of Ballooning Modes in an Inward-Shifted LHD Configuration

Jonathan Graves, Wilfred Anthony Cooper, Lucie Brocher

A drift-magnetohydrodynamic theory is applied to a background anisotropic pressure equilibrium state to generate a drift corrected ballooning mode equation. The ratio of the mode frequency to the hot particle drift frequency constitutes the critical expans ...

2010

Drift stabilization of ballooning modes in an inward-Shifted LHD configuration

Jonathan Graves, Wilfred Anthony Cooper, Lucie Brocher

A drift-magnetohydrodynamic theory is applied to a background anisotropic pressure equilibrium state to generate a drift corrected ballooning mode equation. The ratio of the mode frequency to the hot particle drift frequency constitutes the critical expans ...

Wiley-VCH2010

Energy's and amplitudes' positivity

Riccardo Rattazzi

In QFT, the null energy condition (NEC) for a classical field configuration is usually associated with that configuration's stability against small perturbations, and with the sub-luminality of these. Here, we exhibit an effective field theory that allows ...

2010

Fast ion transport in the TORPEX experiment

Alice Burckel

The simulation of the fast ions dynamics experiment in the TORPEX device is presented. The experiment consists of a fast particles source that injects lithium ions in the TORPEX plasma, characterized by interchange-driven turbulence. The simulations are pe ...

2009

Galileon as a local modification of gravity

Riccardo Rattazzi

In the Dvali-Gabadadze-Porrati (DGP) model, the "self-accelerating" solution is plagued by a ghost instability, which makes the solution untenable. This fact, as well as all interesting departures from general relativity (GR), are fully captured by a four- ...

2009

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Flexural strength of micron-scale plate-like silicon in aluminum

Definition of the radiation fields for the JET gamma-ray spectrometer diagnostics

Bifurcated Helical Core Equilibrium States in Tokamaks

Axial phase measurements of light interacting with microstructures

Bifurcated Helical Core Equilibrium States in Tokamaks

Drift Stabilisation of Ballooning Modes in an Inward-Shifted LHD Configuration

Drift stabilization of ballooning modes in an inward-Shifted LHD configuration

Energy's and amplitudes' positivity

Fast ion transport in the TORPEX experiment

Galileon as a local modification of gravity

Drift stabilization of ballooning modes in an inward-Shifted LHD configuration

Fast ion transport in the TORPEX experiment

Definition of the radiation fields for the JET gamma-ray spectrometer diagnostics

Flexural strength of micron-scale plate-like silicon in aluminum

Axial phase measurements of light interacting with microstructures

Drift Stabilisation of Ballooning Modes in an Inward-Shifted LHD Configuration

Energy's and amplitudes' positivity

Galileon as a local modification of gravity

Bifurcated Helical Core Equilibrium States in Tokamaks

Bifurcated Helical Core Equilibrium States in Tokamaks