Name: 8th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2019)
Start: 2019-09-15T00:00:00+02:00
End: 2019-09-19T23:30:00+02:00
Location: Orto Botanico - Padova

8th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2019)

from Sunday 15 September 2019 (00:00) to Thursday 19 September 2019 (23:30)

Monday 9 September 2019 ¶
Tuesday 10 September 2019 ¶
Wednesday 11 September 2019 ¶
Thursday 12 September 2019 ¶
Friday 13 September 2019 ¶
Saturday 14 September 2019 ¶
Sunday 15 September 2019 ¶

14:30

14:30 - 18:30

16:00 Organizing Committee Meeting
Organizing Committee Meeting
16:00 - 18:00

Monday 16 September 2019 ¶

08:00

08:00 - 08:15

08:15

08:15 - 08:30
08:30 Oral #1
Oral #1
08:30 - 10:00
Contributions

08:30 First principles calculations of field emission from a defected metal surface - Flyura Djurabekova (University of Helsinki) Andreas Kyritsakis

09:10 Suggestions about the role of carbon nanowhiskers in electrical breakdown - Richard Forbes (University of Surrey)

09:30 Consideration of the origin of enhanced field emission - Walter Wuensch (CERN)

09:50 Field electron emission in an external magnetic field parallel to the surface - Yuliia Lebedynska (Sumy State Pedagogical University named after A.S. Makarenko, Sumy, Ukraine. )
10:00

10:00 - 10:30
10:30 Oral # 2
Oral # 2
10:30 - 12:15
Contributions

10:30 Observations on the link between cathode plastic activity and arc nucleation - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))

11:10 Investigations of the transition from field electron emission to plasma discharges (glow discharges and micro-arcs) with extended use of the Fowler-Nordheim plot - Wolfram Knapp (Otto-von-Guericke-Universitaet Magdeburg)

11:30 Does field emission from ‘real’ surfaces affect the high-pressure air breakdown in electric power equipment? - Mikhail Benilov (Departamento de Física, FCEE, Universidade da Madeira, Funchal, Portugal, and Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal)

11:50 The Breakdown Induced by Rupture of Dielectric layer (BIRD) model: insights and future developments - emanuele spada
12:15

12:15 - 14:00
14:00 Oral # 3
Oral # 3
14:00 - 15:30
Contributions

14:00 A "nearly semi-quantitative" explanation of electrical breakdown effects reported by Julius Caesar and Pliny the Elder - Richard Forbes (University of Surrey)

14:40 3D Modeling of field electron emission from a micro/nano structured surface - Darius Mofakhami (Group of electrical engineering of Paris (GeePs), UMR 8507, CNRS)

15:00 Field Emission and Multipactor Simulations in High Gradient RF Accelerators - David Banon Caballero (CERN - IFIC - University of Valencia (ES))

15:20 COMSOL simulation of the surface flashover in a MEMS insulator - Xiaoli Guo
15:30

15:30 - 16:00
16:00 Oral #4
Oral #4
16:00 - 17:30
Contributions

16:00 Field Emission Model for PIC-DSMC Simulations Based on Nanoscale Surface Characterization - Chris Moore (Sandia National Labs)

16:40 Simulations of material surface modifications due to combined influence of femtosecond laser irradiation and applied electric fields - Vahur Zadin (University of Tartu (EE))

17:00 Breakdown-loaded electric field as a high gradient limit - Jan Paszkiewicz (University of Oxford (GB))

17:20 RF Breakdowns in the SPIDER experiment during its first operational phase - Andrea Zamengo (Consorzio RFX)
17:30 # 1
# 1
17:30 - 19:00
Contributions

17:30 Why Murphy-Good plots are better than Fowler-Nordheim plots - Richaard Forbes (University of Surrey)

17:35 Modeling the Role of Effective β on Vacuum Breakdown Initiation: Scaling from Micro to Macro Dimensions - Ashish Jindal (Sandia National Laboratories)

17:40 Using Fowler-Nordheim plots to measure characteristic local field values - Richard Forbes (University of Surrey)

17:45 Field-emission investigations of micro-structured stainless steel 1.4301 (ASTM 304) for application of vacuum components as very large FE cathode arrays - Wolfram Knapp (Otto-von-Guericke-Universitaet Magdeburg)

17:50 Negative ion beam extraction in an RF hydrogen plasma with Cs seeding - Min Park (Korea Atomic Energy Research Institute)

17:55 Dark current fluctuation measurements the pulsed DC system - Jan Paszkiewicz (University of Oxford (GB))

18:00 Commissioning of IFIC High Gradient RF Laboratory to test S-band accelerating structures for hadron-therapy accelerators. - David Banon Caballero (CERN - IFIC - University of Valencia (ES))

18:05 Combined Field Emission and Multipactor Simulation in High-Gradient RF Accelerating Structures - David Banon Caballero (CERN - IFIC - University of Valencia (ES))

18:10 The smooth transition from field electron emission to glow discharge (as a pre-stage of glow-to-arc transition) - a novel approach for the detection - Wolfram Knapp (Otto-von-Guericke-Universitaet Magdeburg)

18:15 Recent technical improvements to and plans for ArcPIC - Kyrre Ness Sjobaek (University of Oslo (NO))

18:25 RF Breakdowns in the SPIDER experiment during its first operational phase - Andrea Zamengo (Consorzio RFX)

18:30 Field electron emission in an external magnetic field parallel to the surface - Yuliia Lebedynska

18:35 Investigations of the transition from field electron emission to plasma discharges (glow discharges and micro-arcs) with extended use of the Fowler-Nordheim plot - Wolfram Knapp (Otto-von-Guericke-Universitaet Magdeburg)

18:40 Direct Field Ionisation - Sergio Calatroni (CERN)

18:45 COMSOL simulation of the surface flashover in a MEMS insulator - Xiaoli Guo
19:00

19:00 - 20:00

20:00

20:00 - 22:00
Tuesday 17 September 2019 ¶
08:30 Oral # 5
Oral # 5
08:30 - 10:00
Contributions

08:30 Diagnostics of hot anode surface by optical methods - Sergey Gortschakow (Leibniz institute for plasma science and technology)

09:10 Field estimation and the statistical analysis of dark currents - Sagy Itschak Lachmann (Hebrew University of Jerusalem)

09:30 Spectroscopic and Microscopic Observations of Anode Behaviors in Vacuum Breakdown - Zhipeng Zhou (University of Helsinki)
10:00

10:00 - 10:30
10:30 Oral # 6
Oral # 6
10:30 - 12:15
Contributions

10:30 Vacuum breakdown voltage distributions between different contact arrangements and materials - Erik Taylor (Siemens AG)

10:50 Precision hign voltage platform for ion mass analysis - Marco Cavenago (INFN-LNL)

11:10 Roles and Physical Processes of Anodes in the Initial Stage of Vacuum Breakdowns - Zhenxing Wang

11:30 HVDC insulation between shaped electrodes separated by large vacuum gaps - Nicola Pilan (Consorzio RFX )
12:15

12:15 - 14:00

14:00

14:00 - 14:30
14:30 Oral # 7
Oral # 7
14:30 - 16:30
Contributions

14:30 Progress of the ITER Neutral Beam Test Facility project - Vanni Toigo

14:50 First year of operation of SPIDER, prototype source of ITER neutral beam injectors - Gianluigi Serianni (Consorzio RFX)

15:30 Design of the first vacuum and low-pressure gas insulation tests for the MITICA 1 MV electrostatic Accelerator - Giuseppe Chitarin (University of Padova and Consorzio RFX)

15:50 Surface coatings for arc prevention between plasma facing components - Luigi Cordaro (Consorzio RFX)
16:30

16:30 - 17:00

17:00

17:00 - 18:45

18:45 Bus transfer to Padova downtown
Bus transfer to Padova downtown
18:45 - 19:15
Wednesday 18 September 2019 ¶
08:30 Oral #8
Oral #8
08:30 - 10:15
Contributions

08:30 Study on the post-arc sheath and the post-arc current in vacuum interrupters - Shenli Jia (Xi'an Jiaotong University)

09:10 Simulations of vacuum arcs with liquid-metal cathodes - Vladimir Kolobov (CFDRC)

09:30 Study on breakdown phenomenon of high energy ions bombarding electrode - Ao Xu

09:50 Generalizing Models of Vacuum Arcs - Jim Norem (Argonne (Retired))
10:15

10:15 - 10:45
10:45 Oral # 9
Oral # 9
10:45 - 12:35
Contributions

10:45 Theory of electric field breakdown nucleation: mobile dislocation population dynamics and atomic simulations - Eli Engelberg (The Hebrew University of Jerusalem)

11:15 Numerical Simulation of the Initial Phase of Unipolar Arcing in Fusion Relevant Conditions - Helena Kaufmann (Departamento de Física, FCEE, Universidade da Madeira and Instituto de Plasmas e Fusão Nuclear, IST, Universidade de Lisboa)

11:45 Diffusion on metal surfaces under high electric fields - Ekaterina Baibuz (University of Helsinki)

12:15 Direct Field Ionisation - Sergio Calatroni (CERN)
12:35

12:35 - 13:30

13:30

13:30 - 20:00
Thursday 19 September 2019 ¶
08:30 Oral #10
Oral #10
08:30 - 10:00
Contributions

08:30 Collective motion of large number of cathode spots - abdellah Kharicha (Christian-Doppler Laboratory for Metallurgical Applications of Magnetohydrodnamics)

09:10 Machine learning for Cu surface kinetic Monte Carlo - Jyri Kimari

09:30 Electrical Design and Voltage Holding Analyses of the MITICA Beam Source Mock-up and its Intermediate Electrostatic Shield - Tommaso Patton (Consorzio RFX)
10:00

10:00 - 10:30
10:30 Oral #11
Oral #11
10:30 - 12:15
Contributions

10:30 Dynamic coupling between particle-in-cell and atomistic simulations - Andreas Kyritsakis

11:10 Mutual exchange of charged particles in high voltage dc devices insulated by high vacuum - Nicola Pilan (Consorzio RFX )

11:30 Electric field devices for the EDM prototype ring - Jan Borburgh (CERN)

11:40 Development of the design technique with empirical scaling of vacuum insulation for electrostatic accelerators with large surface area and locally concentrated electric field for fusion application - Atsushi Kojima (QST)
12:15

12:15 - 14:00
14:00 Oral #12
Oral #12
14:00 - 15:30
Contributions

14:00 Recent progress at pulsed dc systems - Iaroslava Profatilova (CERN)

14:40 Preliminary results from the cryogenic pulsed dc system - Marek Jacewicz (Uppsala University (SE))

15:00 STATISTICAL ANALYSIS OF CURRENT AND X-RAYS SIGNALS FOR A VACUUM HIGH VOLTAGE HOLDING EXPERIMENT - silvia spagnolo

15:20 X-rays spectrum characterization during high voltage conditioning in .vacuum insulated system using high rate detectors - Gabriele Croci (Universita & INFN, Milano-Bicocca (IT))
15:30

15:30 - 16:00
16:00 Oral # 13
Oral # 13
16:00 - 17:30
Contributions

16:00 Micromachined Surface-Flashover Ion Source Based on MEMS Technology - Yajun Wang (Institute of Electronic Engineering, China Academy of Engineering Physics)

16:20 Plasma cleaning of Cu surfaces before and after conditioning with DC pulses - Anton Saressalo (Helsinki Institute of Physics (FI))

16:40 Breakdown Measurements in High-Gradient RF Test Stands - Lee Millar (Lancaster University (GB))
17:30 # 2
# 2
17:30 - 19:15
Contributions

17:35 Dark Current Analysis at CERN's X-band Facility - David Banon Caballero (CERN - IFIC - University of Valencia (ES))

17:40 Development of the design technique with empirical scaling of vacuum insulation for electrostatic accelerators with large surface area and locally concentrated electric field for fusion application - Atsushi Kojima (QST)

17:45 Electrode conditioning for prevention of DC arc formation in presence of a cold plasma background. - roberto cavazzana

17:50 Limiting BD Power in a Pulsed DC System - Anton Saressalo (Helsinki Institute of Physics (FI))

18:00 Cathodic Arc Expansion in Low-Pressure Helium - Brian Bentz (Sandia National Laboratories)

18:05 Electrical Design and Voltage Holding Analyses of the MITICA Beam Source Mock-up and its Intermediate Electrostatic Shield - Tommaso Patton (Consorzio RFX)

18:10 Electric field devices for the EDM prototype ring - Jan Borburgh (CERN)

18:15 X-rays spectrum characterization during high voltage conditioning in .vacuum insulated system using high rate detectors - Gabriele Croci (Universita & INFN, Milano-Bicocca (IT))

18:20 Optical Spectroscopy in the Large Electrode System at CERN - Ruth Peacock (Lancaster University (GB))

18:25 Recent progress at pulsed dc systems - Iaroslava Profatilova (CERN)

18:30 Generalizing Models of Vacuum Arcs - Jim Norem (Argonne (Retired))

18:35 Diffusion on metal surfaces under high electric fields - Ekaterina Baibuz (University of Helsinki)

18:40 Machine learning for Cu surface kinetic Monte Carlo - Jyri Kimari

18:45 STATISTICAL ANALYSIS OF CURRENT AND X-RAYS SIGNALS FOR A VACUUM HIGH VOLTAGE HOLDING EXPERIMENT - silvia spagnolo

18:50 Breakdown Measurements in High-Gradient RF Test Stands - Lee Millar (Lancaster University (GB))

18:55 Precision hign voltage platform for ion mass analysis - Marco Cavenago (INFN-LNL)

19:00 Field estimation and the statistical analysis of dark currents - Sagy Itschak Lachmann (Hebrew University of Jerusalem)
20:00

20:00 - 23:00

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