21st joint workshop on electron cyclotron emission (ECE) and electron cyclotron resonance heating (ECRH)

Session

EC experiment

21 Jun 2022, 09:00

B72 - Amphitheatre (ITER Organization )

Conveners

EC experiment

• Heinrich Laqua (Max-Planck-Institute for Plasma Physics, Greifswald, Germany)

EC experiment

• Cary Forest (UW Madison)

Contribution list Timetable

126. Higher Off-Axis Electron Cyclotron Current Drive Via ‘Top Launch’ Approach Demonstrated on the DIII-D Tokamak

xi chen (General Atomics)

21/06/2022, 09:00

Invited

44. Plasma heating and improvement of lower hybrid current drive efficiency by electron cyclotron waves on EAST

Miaohui Li

21/06/2022, 09:30

Oral

The electron cyclotron (EC) system on EAST consists of three gyrotrons with a frequency of 140 GHz (second harmonic of the extraordinary mode), each of which is expected to deliver a maximum power of 1.0 MW and be operated at 100-1000 s pulse length. Significant progress in long-pulse operation has been achieved during the 2021 campaign, including the pulse duration of 100 s with EC power...

98. ECRH experiments on Tokamaks SST-1 & Aditya-U and ECRH upgradation plan for SST-1

Braj Kishore Shukla (Institute for Plasma Research)

21/06/2022, 09:50

Oral

A 42GHz-500kW ECRH system [1] is used to carry out various experiments related to plasma breakdown and ECR heating on tokamaks SST-1 and Aditya-U. The system has been upgraded with new anode modulator power supply to launch two ECRH pulses to carry out breakdown and heating simultaneously. In SST-1, ECRH system is used routinely for plasma breakdown at fundamental harmonic, approximately 150kW...

54. Electron cyclotron heating and current drive systems on DIII-D

Yuri Gorelov (General Atomics)

21/06/2022, 10:10

Oral

General Atomics, San Diego, CA, 92121 USA
The electron cyclotron heating (ECH) system on DIII-D is currently comprised of four 110-GHz non-depressed collector gyrotrons. All four gyrotrons are expected to inject a total of more than 2.5 MW into the plasma for an administrative limit of 5 s during the upcoming experimental campaign. The history of the ECH system complex on DIII-D will be...

130. Triple-Beampath-scenario for O2-heating at Wendelstein 7-X: experience of OP1.2 and final improvements for OP2

Torsten Stange (Max-Planck-Institute for Plasma Physics)

21/06/2022, 11:00

Invited

79. Experiments with reduced single pass absorption at ASDEX Upgrade – instrumentation and applications

Martin SCHUBERT

21/06/2022, 11:30

Oral

The electron cyclotron resonance heating system (ECRH) at ASDEX Upgrade (AUG) has been extended to eight similar Gyrotrons in total. Each Gyrotron operates at 105 and 140 GHz and is designed for up to 1 MW millimetre wave output power. Experimental topics include conditions with high plasma densities [1], potentially above the X-2 cut-off at 140 GHz. New ECRH heating schemes have been proposed...

52. Quantification of X3 absorption for ITER L-mode parameters in ASDEX Upgrade

Dr Jörg Stober (Max-Planck-Institut für Plasmaphysik), Yong Liu (ASIPP)

21/06/2022, 11:50

Oral

see attached file

129. Development of ECRH-based methods for assisted discharge recovery: experiment and simulation

Daria Ricci (CNR-ISTP)

21/06/2022, 12:10

Invited