7th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2018)

from Sunday, 20 May 2018 (08:00) to Thursday, 24 May 2018 (18:00)
Other Institutes

        : Sessions
    /     : Talks
        : Breaks
20 May 2018
21 May 2018
22 May 2018
23 May 2018
24 May 2018
AM
08:15
Conference Activity (until 08:30) (La Puntilla)
08:30
Overview/Foundational (until 10:00) ()
08:30 Applications of High-Gradient Accelerators - Walter Wuensch (CERN)   ()
09:00 Review of high voltage breakdown: from multipactor to ionization discharge* - Prof. J. Verboncoeur (Michigan State University)   ()
09:30 Advancing electrode models for PIC-DSMC simulation of discharge between real electrodes - Chris Moore (Sandia National Labs)   ()
10:00
Coffee Break (until 10:30) ()
10:30
Field Emission (until 11:30) (La Puntilla)
10:30 Nanoscopic and Surface Aspects of Field Emission and Vacuum Arcs - Marek Jacewicz (Uppsala University (SE))   (La Puntilla)
11:00 CHARACTERIZING THE INFLUENCE OF ELECTRODE SURFACE MORPHOLOGY ON FIELD EMISSION - Morgann Berg (Sandia National Laboratories)   (La Puntilla)
11:30
Lunch Break (until 13:30) ()
08:30
Modeling and Simulations (until 10:00) (La Puntilla)
08:30 Thermal runaway of intensively field-emitting metal tips. - Andreas Kyritsakis   (La Puntilla)
09:00 Dynamic Coupling of a Finite Element Solver to Large-Scale Atomistic Simulations - Mihkel Veske (University of Helsinki)   (La Puntilla)
09:30 Stochastic model of breakdown nucleation under intense electric fields - Eli Engelberg (The Hebrew University of Jerusalem)   (La Puntilla)
10:00
Coffee Break (until 10:30) ()
10:30
Experiments and Diagnostics (until 11:30) (La Puntilla)
10:30 CURRENT SIGNALS AND X-RAYS SPECTRA ANALYSIS FOR A VACUUM HIGH VOLTAGE HOLDING EXPERIMENT - Dr silvia spagnolo (consorzio rfx)   (La Puntilla)
11:00 Updated Results of Breakdown Study for a 509-MHz CW Accelerating Cavity based on Direct In-situ Observation - Dr Tetsuo Abe (KEK)   (La Puntilla)
11:30
Lunch Break (until 13:30) ()
08:30
Experiments and Diagnostics (until 10:00) (La Puntilla)
08:30 Constraints on stochastic plastic activity as a source for BD nucleation - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))   (La Puntilla)
09:00 Copper Measurements with High Frequency Ultrasound Microscope - Mr Antti Meriläinen (Helsinki Institute of Physics (FI))   (La Puntilla)
09:30 Microscopy at CERN - Enrique Rodriguez Castro (CERN)   (La Puntilla)
10:00
Coffee Break (until 10:30) ()
10:30
Experiments and Diagnostics (until 11:30) (La Puntilla)
10:30 High-field measurements with kHz repetition rate, microsecond dc pulses - Iaroslava Profatilova (CERN)   (La Puntilla)
11:00 Characteristics and statistics of breakdowns on copper electrodes - Anton Saressalo (Helsinki Institute of Physics (FI))   (La Puntilla)
11:30
Lunch Break (until 13:30) ()
08:30
Modeling and Simulations (until 10:00) (La Puntilla)
08:30 Droplet emission from non-refractory cathodes: From vacuum arcs to ultra-high-pressure arcs - Dr Valerian Nemchinsky (Keiser University)   (La Puntilla)
09:00 Study of a low-pressure high voltage switch triggered by laser-surface interaction - Andrew Fierro (Sandia National Laboratories)   (La Puntilla)
09:30 Modeling of Cathode Spot Crater Formation and Development on pure Cu and CuCr alloy in Vacuum Arc - Prof. Lijun Wang (Xi'an Jiaotong University)   (La Puntilla)
10:00
Coffee Break (until 10:30) ()
10:30
Applications (until 12:00) (La Puntilla)
10:30 Mitigation of the breakdown induced effects on the 1 MeV – 16.5 MW Neutral Beam Injector experiment in Padova - Antonio De Lorenzi (Consorzio RFX - )   (La Puntilla)
11:00 Mitigation of High Field Corona Losses by Surface Treatments - Prof. Zeke Insepov (Purdue University)   (La Puntilla)
11:30 DC Current Interruption by Vacuum Arc under A Controllable Rotating Transverse Magnetic Field - Zhiyuan Liu (Xi'an Jiaotong University)   (La Puntilla)
PM
18:00
Welcome Reception (until 22:00) (La Puntilla)
13:30
Modeling and Simulations (until 14:30) (La Puntilla)
13:30 Do Cracks and Unipolar Arcs explain vacuum breakdown and gradient limits? - Dr Jim Norem (Nano Synergy Inc)   (La Puntilla)
14:00 Simulations of Multi-Phase Processes of Arc Interaction with Electrodes - Dr Vladimir Kolobov (CFD Research Corporation)   (La Puntilla)
14:30
Coffee Break (until 15:00) ()
15:00
Experiments and Diagnostics (until 16:30) (La Puntilla)
15:00 Electrical vacuum breakdowns in large-gap DC-setup: experiment versus theory - Flyura Djurabekova (University of Helsinki)   (La Puntilla)
15:30 Spectroscopic study of high-current vacuum arcs considering anode activity - Dr Sergey Gorchakov (Leibniz Institute for Plasma Science and Technology)   (La Puntilla)
16:00 Photon-assisted Plasma Breakdown Studies in Plane to Plane Discharges - Ed Barnat (Sandia National Laboratories)   (La Puntilla)
17:00
Poster Session (until 19:00) (La Puntilla)
13:30
Applications (until 15:00) (La Puntilla)
13:30 Update on high-power testing of X-band RF structures at CERN - Mr Jan Paszkiewicz (University of Oxford (GB))   (La Puntilla)
14:00 Recent Results of X-Band High-Gradient Tests at KEK / Nextef - Tetsuo Abe (High Energy Accelerator Research Organization (KEK))   (La Puntilla)
14:30 Autopsy of cryogenic normal conducting X-band cavity - Valery Dolgashev (SLAC)   (La Puntilla)
16:00
Conference Activity (until 19:00) ()
13:30
Modeling and Simulations (until 14:30) (La Puntilla)
13:30 Computing properties of Pt surfaces for understanding electron emission - Peter Schultz (Sandia)   (La Puntilla)
14:00 Experiments and simulations of nanoscale surface-field interaction - Simon Vigonski (University of Tartu)   (La Puntilla)
14:30
Coffee Break (until 15:00) ()
15:00
Field Emission (until 16:30) (La Puntilla)
15:00 The Photoemission Threshold Rate - Dr Harold Hjalmarson (Sandia National Labs)   (La Puntilla)
15:30 Imaging Dark Current at Microscale - Prof. Sergey Baryshev (Michigan State University)   (La Puntilla)
16:00 Dark current fluctuation measurements in RF structures and pulsed DC experiments - Jan Paszkiewicz (University of Oxford (GB))   (La Puntilla)
17:30
Conference Activity (until 22:00) (La Puntilla)
12:00
Lunch Break (until 14:00) ()
14:00
Modeling and Simulations (until 15:00) (La Puntilla)
14:00 Nanotip-formation processes in electric fields - Dr Ville Jansson (University of Helsinki)   (La Puntilla)
14:30 Artificial neural networks for Cu surface migration barrier prediction - Jyri Lahtinen   (La Puntilla)
15:00
Conference Activity (until 15:15) (La Puntilla)
15:15
Coffee Break (until 15:45) ()
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