Name: 9th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2021)
Start: 2021-03-08T00:00:00+01:00
End: 2021-03-12T23:59:00+01:00
Location: Online

9th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2021)

from Monday, March 8, 2021 (12:00 AM) to Friday, March 12, 2021 (11:59 PM)

Monday, March 8, 2021

2:00 PM Opening remarks
Opening remarks
2:00 PM - 2:15 PM
2:15 PM Experiments & Diagnostics: Effects of H- irradiation
Effects of H- irradiation
2:15 PM - 3:45 PM
Contributions

2:15 PM Low-energy H- irradiation of accelerators components: influence of material and material properties on the breakdown resistance at high electric fields - Sergio Calatroni (CERN)

2:45 PM Microscopy investigation of the surface behaviour of different materials after H- irradiation in different conditions - Ana Teresa Perez Fontenla (CERN)

3:15 PM Pulsed DC Large Electrode System Study of the effects of H- Irradiation on Breakdowns - Ruth Peacock (Lancaster University (GB))
3:45 PM Coffee break
Coffee break
3:45 PM - 4:00 PM
4:00 PM Experiments & Diagnostics: DC systems
DC systems
4:00 PM - 5:30 PM
Contributions

4:00 PM Identification of Dislocation Structure in Cu Electrodes - Inna Popov

4:30 PM Copper Surfaces: Comparative Studies in Cryogenic High Fields - Elias Waagaard (Uppsala University)

5:00 PM In-situ plasma cleaning of Cu surfaces for reducing the generation of vacuum arc breakdowns - Anton Saressalo (Helsinki Institute of Physics (FI))
Tuesday, March 9, 2021
2:00 PM Modelling and simulations: Arc and plasma dynamics
Arc and plasma dynamics
2:00 PM - 3:30 PM
Contributions

2:00 PM Electrostatic discharges on very large spacecrafts solar panels: coupled model of a cathode spot and flash-over expansion in vacuum - Loanne Monnin

2:30 PM Investigation of Vacuum Breakdown in Pulsed DC Systems - Helena T. C. Kaufmann (University of Madeira)

3:00 PM Kinetic Simulation of the Plasma Dynamics in the Post-arc Stage - Dan Wang
3:30 PM Coffee Break
Coffee Break
3:30 PM - 3:45 PM
3:45 PM Experiments & Diagnostics
3:45 PM - 5:45 PM
Contributions

3:45 PM Real-time observation of strong electric-field-induced surface modification - Sergei Vlassov

4:15 PM Characterization of Cu electrodes after vacuum breakdown with AFM and SEM - Sven Oras (University of Tartu)

4:45 PM New Development of BIRD model - Emanuele Spada (Consorzio RFX)

5:15 PM Characterization of the breakdown voltage of vacuum interrupters by different procedures - Erik D.Taylor (Siemens AG, Smart Infrastructure)
Wednesday, March 10, 2021
2:00 PM Field emission: Theory
Theory
2:00 PM - 3:30 PM
Contributions

2:00 PM General scaling laws of space charge effects in field emission - Mihkel Veske

2:30 PM Quantum regime of field emission based on exchange-correlation effects in a nanogap - Nan Li (Xi‘an Jiatong University)

3:00 PM Theoretical study of field emission from dielectric coated surfaces - Peng Zhang (Michigan State University)
3:30 PM Coffee Break
Coffee Break
3:30 PM - 3:45 PM
3:45 PM Poster Session: Breakdown in RF structures & diamond
Breakdown in RF structures & diamond
3:45 PM - 5:00 PM
Contributions

3:45 PM Field Emission Microscopy of Diamond and Nanotube Materials - Taha Y. Posos (Michigan State University)

4:10 PM FEgen v.1: Fowler-Nordheim Equation Based Initial Particle Distribution Freeware for Advanced Beam Dynamics Simulations - Emily Jevarjian (Michigan State University)

4:35 PM FEbeam: A Comprehensive Field Emission Data Processing for Field Emission and Breakdown Analysis in RF Environment - Mitchell Schneider (Los Alamos National Laboratory)
Poster Session: Experiments & Diagnostics
Experiments & Diagnostics
3:45 PM - 5:05 PM
Contributions

3:45 PM Study of X-ray spectra emitted during High Voltage DC conditioning in high vacuum - Nicola Pilan (Consorzio RFX)

4:05 PM Low-Z anode wires testing for particle accelerator electrostatic septa - Jan Borburgh (CERN)

4:25 PM Application of Machine Learning to Breakdown Prediction in CERN’s High-Gradient Test Stands - Lee Millar (Lancaster University (GB))

4:45 PM Analysis of surface temperature dynamics of switching vacuum arc contacts - Sergey Gortschakow (Leibniz institute for plasma science and technology)
Thursday, March 11, 2021
2:00 PM Field emission: Experiments
Experiments
2:00 PM - 3:30 PM
Contributions

2:00 PM ANALYZING EXPERIMENTAL DATA ON INGINITION OF CORONA DISCHARGES AND BREAKDOWN ON POSITIVE ELECTRODES IN HIGH-PRESSURE AIR FOR DIAGNOSTICS OF SURFACE MICROPROTRUSIONS - Nuno Ferreira (Universidade da Madeira)

2:30 PM Silicon Field Emitter fabrication by TMAH Etching of convex/concave corners - Andreas Schels (Institute of Physics, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr München)

3:00 PM A New Experimental Method of beta Estimation - Sagy Itschak Lachmann (Hebrew University of Jerusalem)
3:30 PM Coffee Break
Coffee Break
3:30 PM - 3:44 PM
3:45 PM Poster Session: Field emission
Field emission
3:45 PM - 5:05 PM
Contributions

3:45 PM Quantum oscillations as a possible way of the increasing pre-breakdown field emission current - Serhii Lebedynskyi (Institute of Applied Physics, National Academy of Sciences of Ukraine)

4:05 PM A tutorial commentary on the Schottky constant - Richard Forbes (University of Surrey)

4:25 PM Comments on the presentation of field emission theory in the SLAC report - Richard Forbes (University of Surrey)

4:45 PM Nano-tendril bundles behavior under plasma-relevant electric fields - Vladimir Kulagin (National Research Nuclear University MEPhI)
Poster Session: Modelling and simulations
Modelling and simulations
3:45 PM - 5:05 PM
Contributions

3:45 PM Diffusion on Cu Surface under Electric Field with Collective Variable -accelerated Molecular Dynamics - Jyri Kimari

4:05 PM Micron-scale Field Emission Model for PIC-DSMC Simulations Based on Nanoscale Surface Characterization - Chris Moore (Sandia National Labs)

4:25 PM Polarization characteristics of adatoms diffusing on W{110} surface under applied electric field - Ekaterina Baibuz (University of Helsinki)

4:45 PM Hydrogen accumulation in copper: hydrostatic effect on dislocations - Alvaro Lopez Cazalilla (University of Helsinki)
Friday, March 12, 2021
2:00 PM Experiments & Diagnostics: Breakdown in RF structures
Breakdown in RF structures
2:00 PM - 3:30 PM
Contributions

2:00 PM Light and Electron Emission as Breakdown Probes in X-band rf microscope - Sergey Baryshev

2:30 PM Mo/Cu Multilayers by Bias HiPIMS for X-Band technology - Valentino Rigato (INFN - National Institute for Nuclear Physics)

3:00 PM FEbreak: A Comprehensive Diagnostic and Automated Conditioning Interface for Analysis of Breakdown and Dark Current Effects - Mitchell Schneider (Los Alamos National Laboratory)
3:30 PM Coffee Break
Coffee Break
3:30 PM - 3:45 PM
3:45 PM Modelling and simulations: Breakdown Models
Breakdown Models
3:45 PM - 5:45 PM
Contributions

3:45 PM Monte Carlo Model of High-Gradient Conditioning and Operation - Lee Millar (Lancaster University (GB))

4:15 PM Application of the Voltage Holding Prediction Model to floating and fixed shield vacuum interrupters - Tommaso Patton (Consorzio RFX)

4:45 PM Ab initio investigation of Cu nanoparticle behavior under high electric field - Ye Wang

5:15 PM An integrated approach to understanding RF vacuum arcs - Jim Norem (Argonne Labs (retired))