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Related publications (10)

Edge radial electric field in positive and negative triangularity plasmas in the TCV tokamak

We present the first edge Er measurements in negative triangularity (NT) plasmas in the Tokamak à Configuration Variable (TCV). The Doppler backscattering measurements of v ⊥ ≈ E r / B reveal a significant impact of triangularity on the Er well: in Ohmic, neutral beam injection, and electron cyclotron resonance heated discharges, the Er well and associated E r × B shear are stronger in NT-shaped plasmas compared to their positive triangularity (PT) counterpart. This suggests a connection to the concomitant

IOP Publishing Ltd2026

Theoretical and experimental studies of negative triangularity tokamak plasmas and their applicability to reactor design

Nuclear fusion is a clean and virtually infinite source of energy. Magnetically confined fusion based on the tokamak is the most promising approach to unleash this energy in the near feature. The current reference scenario is based on the High confinement mode (H-mode), which enables the conditions to achieve terrestrial fusion. However, this scenario is plagued by a few concerning issues that might prevent achieving such a result. In this thesis, we explore an alternative scenario, the Negative Triangulari

EPFL2026

Impact of divertor closure on power exhaust in Negative Triangularity in TCV

Holger Reimerdes

Negative triangularity (NT) is a promising ELM-free candidate for future fusion reactors. In this paper, the impact of increased divertor closure on density-ramp induced detachment in NT is assessed in the Tokamak `a Configuration Variable (TCV). Previous experiments in TCV have shown that at similar line-averaged density and divertor shape, NT shaping makes detachment access more difficult than in Positive Triangularity (PT) and results in a lower divertor neutral pressure. In this

IOP Publishing2026

A human cell-free translation screen identifies the NT-2 mycotoxin as a ribosomal peptidyl transferase inhibitor

Gerardo Turcatti, Marc Chambon

Summary Translation inhibitors are invaluable for probing ribosome function and therapeutic applications, but systematic discovery in human systems is limited by the lack of scalable, screening-compatible cell-free platforms. Here, we establish a robust high-throughput screening using human lysates that bypasses cellular cytotoxic effects. After screening ∼28, 000 small molecules, we identified known and novel translation inhibitors, including NT-2, a trichothecene mycotoxin produced by the pathogenic Fusar

bioRxiv2025

On the feasibility of Ohmically heated negative triangularity tokamak power plants

Stefano Coda

Negative triangularity (NT) plasmas achieve enhanced confinement without edge localized modes nor the need to exceed the L-H heating power threshold. Removing this H-mode accessibility constraint opens a new region of parameter space: scenarios with low external heating power. Using simple zero dimensional power balance and standard empirical scaling laws for confinement, we analyze the impact of external heating on several different reactor-relevant devices (i.e. SPARC, MANTA, ITER and DEMO). We determine

IOP Publishing Ltd2025

NEGATIVE TRIANGULARITY TOKAMAK OPERATION IN TCV

Olivier Sauter, Stefano Coda, Basil Duval, Laurent Villard, Stephan Brunner

TCV experiments and novel theoretical studies have addressed key questions regarding the operational space of negative triangularity (NT) plasmas in view of an L-mode NT reactor, in terms of stability, performance properties and core-edge integration. We show that reducing the top triangularity (δtop) to more negative values induces an H-L back transition, confirming the direct dependence between H-mode existence and access to 2nd ballooning stability region. We also show that the X-point δ can prohibit H-m

2023

Negative Triangularity Tokamak Operation in TCV

Olivier Sauter, Stefano Coda, Basil Duval, Laurent Villard, Stephan Brunner

2023

Termination of atrial fibrillation by catheter ablation can be successfully predicted from baseline ECG

Jean-Marc Vesin, Alain Manuel Viso Rocha

Purpose: multiple organization indices (OIs) have been used to predict the outcome of stepwise catheter ablation (step-CA) in long-standing persistent AF (pers-AF), however with limited success. Our study aims at developing innovative OIs from baseline (BL, before ablation) ECG in order to predict the outcome of step-CA. Methods: fourteen consecutive patients (pts) (60±5 y, AF duration 21±9 m) underwent a step-CA consisting in pulmonary veins isolation, left atrial (LA) defragmentation and linear ablations,

2012

Sharing attractions on the Net with VPark

Daniel Thalmann, Nadia Magnenat-Thalmann

We present a networked virtual environment (NVE) system and an attraction building system based on Windows NT that enables users to introduce their own scenario-based applications into a shared virtual environment. Our goal was to develop and integrate several modules into a system capable of animating realistic virtual humans in a real-time performance. This includes modeling and representing virtual humans with high realism and simulating human face and body movements in real time. Realism becomes quite i

IEEE2001

Evolution not revolution in the TCV tokamak control and acquisition system

Basil Duval, Jonathan Bryan Lister, Jean-Marc Moret, Philippe Marmillod, Xavier Llobet, Blaise Marlétaz, Pierre-François Isoz

The original TCV control system was designed in the late 1980s to be inherently network based in that all control operations were performed from X-windows terminals and the control computers were networked. Using VMS-VAX technology, the acquisition system (CAMAC) and control system (BITBUS) were connected to controllers situated in the machine bus of these machines that were linked homogeneously by the VMS 'cluster' technology. Although the computing power and network bandwidth have improved considerably ov

2001

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Related publications (10)