12th International Workshop on the Mechanisms of Vacuum Arcs  (MeVArc 2025)

from Sunday 1 June 2025 (09:00) to Friday 6 June 2025 (18:00)


        : Sessions
    /     : Talks
        : Breaks
1 Jun 2025
2 Jun 2025
3 Jun 2025
4 Jun 2025
5 Jun 2025
6 Jun 2025
AM
07:00 --- Breakfast ---
08:30
Registration (until 09:00)
09:00
General (until 09:30)
09:30
Modeling and simulations - Matthew Hopkins (until 10:30)
09:30 Influence of X-ray radiation to the electric breakdowns - Prof. Veronika Zadin (University of Tartu (EE))  
10:00 Self-consistent Simulation of Post-arc Plasma Dynamics in Vacuum Circuit Breakers with Circuit Coupling - Zhenxing Wang  
10:30 --- Coffee Break ---
11:00
Modeling and simulations - Matthew Hopkins (until 11:30)
11:00 Breakdown precursor fomation on Cs2Te thin-film photocathode through drift-diffusion-Informed field emission simulation - Ryo Shinohara  
11:30
Field emission (until 12:30)
11:30 A Data-Driven Model for the Prediction of Field Emission Current from Broad-Area Electrodes - Moein Borghei (Avalanche Energy)  
12:00 Quantum model of field emission from dielectric coatings - Serhii Lebedynskyi (Institute of Applied Physics, National Academy of Sciences of Ukraine)  
07:00 --- Breakfast ---
09:00
Field emission - Sergio Calatroni (CERN) (until 10:00)
09:00 Investigating Field Emission and Vacuum Breakdown in a 300 kV Bushing Using Fast Frame Imaging, LIBS, and SEM - Madeline Vorenkamp (Avalanche Energy)  
09:30 A Systematic Study of Metallic and Semiconductor Heterojunction 2-terminal Lateral Nanoscale Vacuum Field Emission Devices - Dr Harris Hall (Air Force Research Laboratory)  
10:00
Modeling and simulations - Sergio Calatroni (CERN) (until 10:30)
10:00 Simulating electrostatic forces under electric fields using machine learning - Ehsan Moradpur-Tari (Institute of Technology, University of Tartu, Estonia)  
10:30 --- Coffee Break ---
11:00
Modeling and simulations - Chris Moore (until 12:00)
11:00 Mechanisms of bubble growth and blistering on metals exposed to hydrogen via machine-learned interatomic potentials - Flyura Djurabekova (University of Helsinki)  
07:00 --- Breakfast ---
09:00
Experiments and diagnostics - Andre Anders (until 10:30)
09:00 Enhanced Multi-Spectral Imaging via Optical-Path Reuse: Spatiotemporal Evolution of Plasma Species in Vacuum Arc - Mr Huikai Xu (Sichuan University)  
09:30 Investigation of Metal Particles Sources and Motion Characteristics in High-Current Interruption - Xiaoxi Le (Sichuan University)  
10:00 Optical and electrical parameters for classifying arc mode and movement using TMF-contacts - Timo Meyer (elenia Institute for high voltage technology and power systems, TU Braunschweig)  
10:30 --- Coffee Break ---
11:00
Modeling and simulations -Prof. Veronika Zadin (University of Tartu (EE)) (until 12:30)
11:00 Monte Carlo simulations of vacuum breakdown occurrence dynamics and statistics - Andreas Kyritsakis  
11:30 Simulation of electric arcs and discharge plasma on the solar panels of satellites - Capucine Sol (ONERA)  
12:00 Electron beam charging of tungsten microparticle X-ray targets - ROLF KARL OTTO BEHLING (KTH Stockholm, Sweden)  
07:00 --- Breakfast ---
09:00
Applications - Flyura Djurabekova (until 10:30)
09:00 Post-arc Current of Forced-current-zero Vacuum Arcs - Prof. Shenli Jia (Xi'an Jiaotong University)  
09:30 Development of a high-gradient thermionic electron gun for a future X-ray free-electron laser - Dr Kazuaki Togawa (RIKEN SPring-8 Center)  
10:00 Electron emission behavior at small gaps in vacuum interrupters - Dr Erik Taylor  
10:30 --- Coffee Break ---
11:00
Applications - Bruno Balhan (CERN) (until 11:30)
11:00 High gradient RF activities in SXFEL - Cheng Wang  
11:30
Experiments and diagnostics - Bruno Balhan (CERN) (until 12:30)
11:30 Enhanced Vacuum Gap Insulation Between Non-Arc Metal Components in Vacuum Interrupters by Ion Implantation - Yongjia Luo (Sichuan University)  
12:00 Investigation of Dark Current in Vacuum Pre-breakdown Phase - Zhenxing Wang  
07:00 --- Breakfast ---
09:00 --- Departure time / Optional visit to FREIA laboratory ---
PM
17:00
Restricted (until 18:00)
18:00
Registration (until 21:00)
12:30 --- Lunch ---
14:00
Experiments and diagnostics - Walter Wuensch (CERN) (until 15:30)
14:00 Updates on Conditioning and Field Emission studies from CERN's pulsed DC experiment. - Victoria Madeleine Bjelland  
14:30 Field emission current evolution during cryogenic conditioning process - Mircea-George Coman  
15:00 Observing plastic evolution related to high-field conditioning - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))  
15:30 --- Coffee Break ---
15:50
Experiments and diagnostics -Dr Antonio De Lorenzi (Consorzio RFX) (until 16:50)
15:50 A high-resolution optical study of repetitive but random vacuum arc spot ignition - Prof. Andre Anders  
16:20 Experimental investigation of the initiation of vacuum arcs on solar panels of satellites - Julien Jarrige (ONERA)  
17:00
Poster session (until 18:00)
19:00 --- Dinner ---
12:05 --- Conference photo ---
12:30 --- Lunch ---
14:00
Experiments and diagnostics - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL)) (until 15:30)
14:00 High-power testing of X-band multiple-sector single-cell test cavities at Nextef2 - Dr Tetsuo Abe  
14:30 High power testing of X-band dielectric assist accelerating structure at Nextef2 - DAISUKE SATOH  
15:00 Exploring RF Breakdown and Conditioning in High-Gradient Accelerating Cavities - Pablo Martinez Reviriego  
15:30 --- Coffee break ---
16:00
Experiments and diagnostics -Dr Tetsuo Abe (until 17:00)
16:00 Longitudinal Electromagnetic (EM) Force Demonstration and its Role in Vacuum Arc Mechanisms including Ion Jet Acceleration - Dr Neal Graneau (AWE)  
16:30 Study of electrode erosion in switching vacuum arcs by optical methods - Sergey Gortschakow  
17:00
Poster session (until 18:00)
19:00 --- Banquet ---
12:30 --- Lunch ---
14:30 --- Social Event - Excursion to Uppsala ---
12:30 --- Lunch ---
14:00
Modeling and simulations - Andreas Kyritsakis (University of Tartu) (until 15:30)
14:00 Simulation based investigation on the influence of electromagnetic power in vacuum breakdown initiation process - Tauno Tiirats (University of Tartu (EE))  
14:30 Numerical Simulation of Vacuum Breakdown Characteristics with Two Emission Sources Based on Particle-in-Cell Method - Lijun Wang (Xi'an Jiaotong University)  
15:00 Coupling vacuum arc plasma and surface phenomena using MD-PIC simulations - Roni Koitermaa (University of Tartu (EE))  
15:30 --- Coffee Break ---
16:00
Modeling and simulations - Shenli Jia (until 17:00)
16:00 Simulations for the study of micro-discharges in conditioning experiments at the High Voltage Padova Test Facility - Federico Caruggi (Universita & INFN, Milano-Bicocca (IT))  
16:30 Three-dimensional hybrid simulation on plasma jet formation in Zirconium-Deuterium multi-component vacuum arc discharge - Wei Yang (Institute of Applied Physics and Computational Mathematics)  
17:00
General (until 18:00)
17:00 MeVArc2026 Annoucement! - Sergio Calatroni (CERN)  
19:00 --- Dinner ---