ECRH workshop 2025

4 Feb 2025, 09:00 → 6 Feb 2025, 13:00 Europe/Berlin

IPP Greifswald

Eva Belonohy (EUROfusion), Heinrich Laqua (IPP), Paco Sanchez (Fusion for Energy)

ECRH workshop 2025

The ECRH workshop is organised by the ECRH network run jointly by Fusion for Energy and the EUROfusion Operations Network. The network includes all ECRH teams in Europe (affiliated to EUROfusion and Fusion for Energy), QST (under the Broader Approach Agreement) and ITER. The workshop offers an excellent opportunity to meet in-person and continue discussions on a variety of ECRH topics including EC plant operations, EC subsystems like high voltage power supplies, gyrotron, transmission lines, control systems, EC launcher and others as shown in the indicative agenda. 

Please register your interest to participate in the workshop in person or remotely through the registration form by 20 December 2024. 

Tuesday 4 February

09:00 → 10:40 Session: EC Plant Operation

Convener: Heinrich Laqua (IPP)

09:00 Welcome

Speaker: Paco Sanchez Arcos (F4E)

09:10 Increasing the Reliability of the W7-X ECRH System by Controlling the Total ECRH Power

Speaker: Laurent Krier (KIT)

09:40 The Foreseen Operational Management of DTT ECH System

Speaker: Gustavo Granucci (ISTP CNR)

10:10 Compliance with the electrical standards for the commissioning of EC power supplies

The process for the start of the commissioning of the HV power supplies of the Electron Cyclotron system of ITER includes verifications with the local (French) safety regulations and additional conditions set by the host institution to ensure that occupational and personnel safety is not compromised during the testing and verification of the system.
The main steps followed for the operation of the ITER EC system procured by Europe concern the identification of the applicable safety standards, a hazard and risk mitigation analysis and a preliminary regulatory inspection conducted by a certified body, and will be presented and discussed in this presentation

Speaker: Ferran Albajar

11:10 → 12:40 Session: Gyrotrons R&D Part 1

Convener: Jean-Philippe Hogge (CRPP)

11:10 Future-Oriented R&D for High-Power Fusion Gyrotrons at KIT

Speaker: Stefan Illy (Karlsruhe Institute of Technology (KIT))

11:40 Research Towards Megawatt-Class Fusion Gyrotrons Operating at the Second Harmonic of the Cyclotron Frequency

Speaker: Lukas Feuerstein (KIT)

12:10 Towards the Verification and Validation of a Thermo-Hydraulic and Mechanical Model for High-Power Gyrotron Cavities

Speaker: Ruggero Guido Bertazzoni (KIT)

14:00 → 16:00 Session: Gyrotrons R&D Part 2

Convener: Ferran Albajar (F4E)

14:00 Recent Investigations on higher power and higher frequency gyrotrons at NKUA

Speaker: Zisis Ioannidis (NKUA)

14:30 Advancements in Gyrotron Theory, Design, and Technology at ETH Zurich

Speaker: Ioannis Pagonakis (ETH)

15:00 Progress on W7-X Upgrades: Advancing Towards 2 MW Operation

Speaker: Debasish Mondal (KIT)

15:30 Design of a gyrotron for future high field fusion application

Speaker: André Schmidt (KIT)

16:10 → 18:00 Social: Tour of the Wendelstein 7-X ECRH system

Wednesday 5 February

09:00 → 10:30 Session: Power Supplies and Transmission Lines

Convener: Lena Delpech (CEA)

09:00 PS technical specification for the first COMPASS-U gyrotron

Speaker: Ondrej Bogar (IPP.CR)

09:30 Concept and challenges of the DTT ECH transmission

Speaker: Francesco Fanale (ENEA)

10:00 Connection Line for DTT gyrotron test

Speaker: Saul Garavaglia (Istituto di Fisica del Plasma CNR MI (ENEA_CNR))

11:00 → 12:30 Session: EC Diagnostics

Convener: Zisis Ioannidis (NKUA)

11:00 Towards a standard Diagnostic for the not absorbed Electron Cyclotron Resonance Heating power at Wendelstein 7-X

Speaker: Jonas Zimmermann (MPG)

11:30 EC stray radiation studies for JT-60SA

Speaker: Dr Carlo Sozzi (ENEA ISTP-CNR Milano)

12:00 Plasma start-up with low ECRH power at W7-X

Speaker: Niklas Simon Polei (IPP)

12:30 → 12:40 Social: Group photo

14:00 → 15:30 Session: Test facilities

Convener: Caroline Darbos (ITER Organisation)

14:00 MISTRAL experiments in support of W7-X, ITER and JT-60SA

Speaker: Johan Willem Oosterbeek (IPP)

14:30 Proposal for an ECH Test facility at DTT site

Speaker: Afra Romano (ENEA-Frascati)

15:00 The ECRH facilities at the Swiss Plasma Center: TCV and FALCON

Speaker: Falk Braunmüller (EPFL)

16:00 → 18:00 Social: Reception

Thursday 6 February

09:00 → 10:30 Session: EC launchers

Convener: Stefan Illy (Karlsruhe Institute of Technology (KIT))

09:00 Integrated RF Analysis Strategy of the ITER ECRH Upper Launcher

Speakers: Eduard Carbonell (F4E), Sandra Julia (F4E)

09:30 Concepts for cooled Mirrors of the DTT ECH Launchers

Speaker: Alessandro Bruschi (Istituto di Fisica del Plasma CNR MI (ENEA_CNR))

10:00 Towards a frictionless steering mechanism for the actively cooled DTT ECRH launching mirror

Speaker: Daniele Busi (POLIMI)

11:00 → 12:40 Session: EC and EBW, longer term view

Convener: Mark Henderson (UKAEA)

11:00 EC system design challenges for the Volumetric Neutron Source

Speaker: Thomas Franke (PMU - PPP&T)

11:30 ITER EU EC Gyrotrons status and next steps

The presentation includes past R&D activities (history) done on the EU Gyrotron project for ITER, current status of the project for the ITER baseline and also includes some part dedicated to the ITER re-baseline, and future plans and challenges to complete the EU Gyrotrons project for ITER. Finally, open questions are launched to the audience on the future needs for EC systems and main challenges to cope with the increase of needs in the Fusion community.

Speaker: Paco Sanchez (Fusion for Energy)

12:00 EBW heating for hight density discharges

Speaker: Ondrej Bogar (IPP.CR)

12:20 Toward Fusion Power Plant Relevant HCD systems

Discussion

Speaker: Mark Henderson (UKAEA)

12:40 → 13:00 Session: Final Summary and conclusions

Convener: Paco Sanchez Arcos (F4E)