5th International Workshop on Mechanisms of Vacuum Arcs (MeVArc 2015)

from Tuesday 1 September 2015 (08:30) to Saturday 5 September 2015 (16:00)
Other Institutes

        : Sessions
    /     : Talks
        : Breaks
1 Sept 2015
2 Sept 2015
3 Sept 2015
4 Sept 2015
5 Sept 2015
AM
08:30 --- Registration ---
09:00
Mini-school (until 15:00) (E207)
09:00 Basics of Molecular Dynamics simulations - Kai Nordlund (University of Helsinki)  
10:30 --- Coffee break ---
11:00 Simulations of dislocations and plastic processes in ductile material - Dr Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))   (E207)
12:30 --- Lunch ---
13:30 Particle-in-cell (PIC) simulation methods - Matthew Hopkins (Sandia National Laboratories)   (E207)
08:50 Welcome! - Flyura Djurabekova (University of Helsinki)  
09:00
Vacuum breakdown phenomena in various applications (I) - Kai Nordlund (University of Helsinki) (until 10:30)
09:00 Directions in High-Gradient Radio-Frequency Applications - Walter Wuensch (CERN)  
09:30 High-gradient accelerating structure at Tsinghua University - Jiaru Shi (Tsinghua University)  
10:00 Voltage Breakdown initiated by electrostatic microdischarges of metal-vacuum interface. A model proposal. - Antonio De Lorenzi  
10:30 --- Morning coffee break ---
11:00
Vacuum breakdown phenomena in various applications (II) - Jiaru Shi (Tsinghua University) (until 12:30)
11:00 Vacuum interrupters - Zhenxing Wang  
11:30 Study of the Conditioning of RF Structures - Walter Wuensch (CERN)  
12:00 Breakdown currents from CLIC crab cavity commissioning - Marek Jacewicz (Uppsala University (SE))  
09:00
Breakdown studies - Flyura Djurabekova (University of Helsinki) (until 10:30)
09:00 Conditioning of large-area vacuum breakdown systems - Anders Jaakko Korsback (University of Helsinki (FI)) Walter Wuensch (CERN)  
09:20 Breakdown localization - Robin Rajamaki (Helsinki University of Technology (FI))  
09:40 Stochastic mechanisms of vacuum arc breakdowns - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))  
10:10 High field pre-breakdown acoustic measurements - Itay Nachshon  
10:30 --- Morning coffee break ---
11:00
Pre- and post-breakdown surface phenomena - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL)) (until 12:30)
11:00 Scanning Electron Microscopy tools for material characterization - Focus on EBSD for characterisation of dislocation structures - Floriane Leaux (CERN)  
11:30 Microstructural features of pre- and post-BD and post-FE tested Cu samples - Inna Popov (T)  
11:50 SEM Observations of Pre-breakdown Structures on OFHC Cu Surfaces - Ayelet Yashar  
12:10 SEM images review on CLIC structures after testing - Ana Teresa Perez Fontenla (CERN)  
09:00
Studies of plasma - Wilfrid Farabolini (CEA DAPNIA) (until 10:30)
09:00 Experimental Study of Vacuum Arcs with Refractory Anodes - Isak Beilis  
09:30 Advances in simulation of plasma discharges at Tech-X - Jonathan Smith (Tech-X UK Ltd)  
10:00 Calibration of Dynamic Vacuum Meter - Antti Meriläinen  
10:30 --- Morning coffee break ---
11:00
Related topics - Ville Jansson (University of Helsinki) (until 12:30)
11:00 Surface Flashover in Fast Pulsed Kicker Systems - Hugo Alistair Day (CERN)  
11:30 Hydrogen seperation in a capillary discharge plasma injector - Ilan BE'ERY  
12:00 High field induced deposition of nanogranular materials for electron sources - Hans Koops  
10:00 --- Hike ---
PM
15:00 --- Bus leaves for airport ---
19:00 --- Welcome reception ---
12:30 --- Lunch ---
14:00
Field emission experiments and theory (I) - Walter Wuensch (CERN) (until 15:30)
14:00 RF Accelerating Cavity for SuperKEKB Damping Ring and its Breakdown Study - Tetsuo Abe (High Energy Accelerator Research Organization (KEK))  
14:30 Field emission study at Argonne Wakefield Accelerator facility - Jiahang Shao  
15:00 Electroformation phenomena driven by the electrical Gibbs function - Richard Forbes  
15:30 --- Coffee break ---
16:00
Field emission experiments and theory (II) - Stefan Parviainen (Helsinki Institute of Physics) (until 17:50)
16:00 Photoemission from metal nanotips studied and controlled with femtosecond laser pulses - Michael Förster  
16:30 Modern theory of field electron emission - Andreas KYRITSAKIS  
17:00 Status of parasitic FE from metallic surfaces and potential destruction of emitters by microdischarges and ion beam impact - Pavel Serbun  
17:20 Participation of IAP of Ukraine in the understanding of breakdown phenomena - Iaroslava Profatilova  
12:30 --- Lunch ---
14:00
Mechanisms of triggering vacuum plasmas - Matthew Hopkins (Sandia National Laboratories) (until 15:20)
14:00 Multiscale modeling of vacuum arcs - Flyura Djurabekova (University of Helsinki)  
14:20 Thermal, electrical and mechanical simulations of field emitters using Finite Element Method - Vahur Zadin (University of Tartu)  
14:40 Simulation of plastic deformation of surfaces under high electric field - Simon Vigonski (University of Tartu)  
15:00 Atomistic modeling of surface damage by a breakdown event - Zhenxing Wang  
15:20 --- Afternoon coffee break ---
15:50
Field emission effects in atomistic simulation - Vahur Zadin (University of Tartu) (until 17:30)
15:50 The metal surface evolution under a high electric field - Ville Jansson (University of Helsinki)  
16:10 Stability of thin nanotips under high electric field - Mihkel Veske (University of Helsinki)  
16:30 Modification of field emitters by electromigration - Stefan Parviainen (Helsinki Institute of Physics)  
16:50 Parameterization of metal surfaces for KMC - Ekaterina Baibuz  
17:10 FN and GTF implemented in FEM and MD models - Kristjan Eimre (Nat. Inst. of Chem.Phys. & Biophys. (EE))  
19:00 --- Conference dinner ---
12:30 Closing remarks  
13:30 --- Workshop outing (Gold prospectors museum) ---