Name: 16th International Reflectometry Workshop (IRW)
Start: 2024-05-13T08:30:00+02:00
End: 2024-05-16T18:15:00+02:00
Location: Max Planck Institute for Plasma Physics (IPP Greifswald)

16th International Reflectometry Workshop (IRW)

from Monday 13 May 2024 (08:30) to Thursday 16 May 2024 (18:15)

Monday 13 May 2024

08:30 Conference check-in and information desk
Conference check-in and information desk
08:30 - 09:00
Room: Günter-Grieger-Hörsaal
09:00 Welcome to IPP-Greifswald
Welcome to IPP-Greifswald
09:00 - 09:15
Room: Günter-Grieger-Hörsaal
Contributions

09:00 Welcome to the IPP-Greifswald and Wendelstein 7-X - Robert Wolf (Max Planck Institute for Plasma Physics) Matthias Hirsch (IPP Bereich Greifswald) Claudia Schoenian (IPP Bereich Greifswald) Gavin Weir (Max Planck Institute for Plasma Physics) Thomas Windisch (IPP)
09:15 Reflectometry
Reflectometry
09:15 - 10:45
Room: Günter-Grieger-Hörsaal
Contributions

09:15 Introduction - Density measurements in fusion plasmas: reflectometry and other measurements - Roland Sabot (The French Alternative Energies and Atomic Energy Commission (CEA))

09:55 New density profile reconstruction method from the time delay in O and X mode reflectometry - Roland Sabot (CEA, IRFM, CEA Cadarache, F-13108 Saint Paul Lez Durance, France)

10:15 Status of the EUROfusion Enabling Research Project Advances in real-time reflectometry plasma tracking, for next generation machines - Filipe da Silva (Instituto Superior Técnico-Instituto de Plasmas e Fusão Nuclear)
10:45 Coffee break
Coffee break
10:45 - 11:00
Room: Günter-Grieger-Hörsaal
11:00 Real time systems and profile inversion
Real time systems and profile inversion
11:00 - 12:30
Room: Günter-Grieger-Hörsaal
Contributions

11:00 Real time reflectometry measurement of density profiles in WEST tokamak - Maylis Carrard (CEA)

11:30 Real-time density profile inversion with deep neutral network model for X-mode polarization density profile reflectometer on EAST - Jia Huang (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, Peopleʼs Republic of China)

12:00 Bayesian O-mode profile inversion with dynamic initialisation - Dirk Stieglitz (IPP Garching)
12:30 Lunch
Lunch
12:30 - 13:30
Room: Günter-Grieger-Hörsaal
13:30 Profile systems
Profile systems
13:30 - 15:00
Room: Günter-Grieger-Hörsaal
Contributions

13:30 Density profile measurements from the developed FMCW Reflectometry system for Aditya-U tokamak. - Janmejay Buch (Institute for Plasma Research)

14:00 Embedded reflectometry into additional heating launchers of WEST - Frederic Clairet (CEA)

14:30 Recent advancements in Short-Pulse Reflectometry in the TCV tokamak - Umesh Kumar (EPFL)
15:00 Extended Coffee break
Extended Coffee break
15:00 - 15:30
Room: Günter-Grieger-Hörsaal
15:30 Reflectometry development on HSX
Reflectometry development on HSX
15:30 - 17:00
Room: Günter-Grieger-Hörsaal
Contributions

15:30 Microwave reflectometry diagnostic for density profile and fluctuation measurements on Helically Symmetric eXperiment - Xiang Han (University of Wisconsin-Madison)

16:00 Ongoing design of Doppler Reflectometry for use on the Helically Symmetric eXperiment - Michael Richardson (University of Wisconsin-Madison)

16:30 Modelling of the HSX Reflectometer and Planned Doppler Reflectometer with the Ray-Tracing Code TRAVIS - Henrique Oliveira Miller (University of Wisconsin Madison)
Tuesday 14 May 2024
09:00 Theory and synthetic diagnostic development
Theory and synthetic diagnostic development
09:00 - 10:45
Room: Günter-Grieger-Hörsaal
Contributions

09:00 2D full-wave and 3D beam-trace modelling of Doppler reflectometry response in realistic geometry - Garrard Conway (IPP Garching)

09:45 Development of full-wave simulation codes for synthetic profile reflectometry in EAST tokamak - Kaixuan Ye (ASIPP)

10:15 Full-wave simulations for synthetic reflectometry diagnostic development - Antoine Jamann (CEA, IRFM, F-13108 Saint Paul-lez-Durance, France)
10:45 Coffee break
Coffee break
10:45 - 11:00
Room: Günter-Grieger-Hörsaal
11:00 Multi-channel microwave system development on EAST
Multi-channel microwave system development on EAST
11:00 - 12:30
Room: Günter-Grieger-Hörsaal
Contributions

11:00 Upgrades of the five-channel tunable W-band doppler backscattering system on EAST - Liutian Gao (USTC)

11:30 A ten-channel E-band Doppler backscattering system on EAST - Wenxiang Shi (University of Science and Technology of China)

12:00 Observation of Doppler shift f_D modulated by internal kink mode using conventional reflectometry on EAST tokamak - Gongshun Li (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China)
12:30 Lunch
Lunch
12:30 - 13:30
Room: Günter-Grieger-Hörsaal
13:30 Microwave system development on HL2A/3
Microwave system development on HL2A/3
13:30 - 15:00
Room: Günter-Grieger-Hörsaal
Contributions

13:30 A flexible Doppler backscattering system on the HL-3 tokamak - Yu Zhou (Southwestern Institute of Physics (SWIP), China)

14:00 Development of 105 GHz Collective Thomson Scattering System on HL-2A - Weichu Deng (Southwestern Institute of Physics, China)

14:30 A novel comb-based multi-channel microwave Doppler backward scattering diagnostic on the HL-3 tokamak - Ruihai Tong (SWIP)
15:00 Extended Coffee break
Extended Coffee break
15:00 - 15:30
Room: Günter-Grieger-Hörsaal
15:30 Technology development
Technology development
15:30 - 17:00
Room: Günter-Grieger-Hörsaal
Contributions

15:30 Calibration options for ITER reflectometry systems - Antoine Sirinelli (ITER Organization)

16:00 SPARC Edge Scanning Reflectometry Overview - Valentina Nikolaeva (Commonwealth Fusion Systems)

16:30 System-on-Chip Technology Application on Millimeter Wave Reflectometers - Yilun Zhu (UC-Davis mmWave Research Center)
Wednesday 15 May 2024
09:00 Intensity refractometry, Plasma density fluctuations and Turbulence
Intensity refractometry, Plasma density fluctuations and Turbulence
09:00 - 10:30
Room: Günter-Grieger-Hörsaal
Contributions

09:00 Intensity refractometry: choosing optimal diagnostic parameters and understanding distortion in experimental data - Maria Usoltseva (Max Planck Institute for Plasma Physics)

09:30 Density fluctuation measurements with Short Pulse Reflectometry - Oleg Krutkin (EPFL)

10:00 TEM turbulence in simulation and experiment with degraded quasisymmetry in the HSX stellarator - Jason Smoniewski (Max-Planck Institute for Plasma Physics)
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: Günter-Grieger-Hörsaal
11:00 nT-crossphase estimation: Reflectometry and CECE
nT-crossphase estimation: Reflectometry and CECE
11:00 - 12:30
Room: Günter-Grieger-Hörsaal
Contributions

11:00 Fullwave Simulations of Radial Correlation Doppler Reflectometry and Cross Correlation with Te Fluctuations in ASDEX Upgrade - Carsten Lechte (Institute of Interfacial Process Engineering and Plasma Technology IGVP, Stuttgart, Germany)

11:30 CECE and nT-phase measurements in ASDEX Upgrade tokamak - Branka Vanovac (MIT PSFC)

12:00 Correlation reflectometry on Wendelstien 7-X: correlation properties, sensitivity, and prospects for nT-crossphase measurements - Gavin Weir (Max Planck Institute for Plasma Physics)
12:30 Lunch
Lunch
12:30 - 13:30
Room: Günter-Grieger-Hörsaal
13:30 Reflectometry on W7-X
Reflectometry on W7-X
13:30 - 15:00
Room: Günter-Grieger-Hörsaal
Contributions

13:30 The Rotation of Quasi coherent Modes in W7-X - Andreas Krämer-Flecken (IEK Forschungszentrum Jülich)

14:00 Doppler-reflectometry at W7-X: Initial results from the campaign OP2.1 - Thomas Windisch (IPP)

14:30 Characterization of DR profiles for various Wendelstein 7-X scenarios - Emmanouil Maragkoudakis (CIEMAT)
15:00 Coffee break
Coffee break
15:00 - 15:30
Room: Günter-Grieger-Hörsaal
15:30 Wendelstein 7-X: ECRH and radiometry
Wendelstein 7-X: ECRH and radiometry
15:30 - 16:30
Room: Günter-Grieger-Hörsaal
Contributions

15:30 The quasi-optical ECRH system of Wendelstein 7-X - Torsten Stange (Max Planck Institute for Plasma Physics)

16:00 ECE diagnostics at W7-X stellarator - Neha Chaudhary (IPP Bereich Greifswald)
16:30

16:30 - 17:00
Room: Günter-Grieger-Hörsaal

17:00 Torus hall and Periphery
Torus hall and Periphery
17:00 - 18:00
Room: Torus Hall and Periphery

19:00 Workshop Dinner
Workshop Dinner
19:00 - 21:00
Thursday 16 May 2024
09:00 Phased array antennas and wavenumber measurements
Phased array antennas and wavenumber measurements
09:00 - 10:30
Room: Günter-Grieger-Hörsaal
Contributions

09:00 Design of a Doppler reflectometer based on frequency steering phased array antenna - Seong-Heon Seo (Korea Institute of Fusion Energy)

09:30 Wavenumber spectrum S(k, t, r) measurements using a frequency comb Doppler reflectometer in combination with a phased array antenna - T Tokuzawa (NIFS)

10:00 Flow and phase velocity of turbulence in magnetized fusion plasmas - Laure Vermare (LPP)
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: Günter-Grieger-Hörsaal
11:00 Edge flows and L-H Transitions
Edge flows and L-H Transitions
11:00 - 12:30
Room: Günter-Grieger-Hörsaal
Contributions

11:00 Edge Flows Studies via Doppler Backscattering on the TCV Tokamak - Sascha Rienäcker (Laboratoire de Physique des Plasmas (LPP), CNRS, Sorbonne Université, École polytechnique, Institut Polytechnique de Paris, Palaiseau, France)

11:30 Probing ELM Triggers in ASDEX Upgrade with Conventional Reflectometry - José Vicente (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa)

12:00 Innovative Doppler backscattering spectra analysis methods applied to comb reflectometer measurements in ASDEX Upgrade - Ondrej Grover (Max Planck Institute of Plasma Physics)
12:30 Lunch
Lunch
12:30 - 13:30
Room: Günter-Grieger-Hörsaal
13:30 Plasma position reflectometry (PPR)
Plasma position reflectometry (PPR)
13:30 - 15:30
Room: Günter-Grieger-Hörsaal
Contributions

13:30 Integrated Microwave Diagnostic Design Workflow - a PPR antenna design use case - Jorge Santos (Instituto de Plasmas e Fusão Nuclear - Instituto Superior Técnico)

14:00 Synthetic wave tomograph based on DEMO Plasma Positioning Reflectometer - Stéphane Heuraux (University of Lorraine, Institut Jean Lamour)

14:30 Confronting simulations of the performance of an equatorial HFS PPR for DTT obtained using 2D and 3D synthetic diagnostics - Filipe da Silva (Instituto Superior Técnico-Instituto de Plasmas e Fusão Nuclear)

15:00 A novel comb-based multi-channel microwave Doppler backward scattering diagnostic on the HL-3 tokamak - Ruihai Tong (SWIP)
15:30 Extended Coffee break
Extended Coffee break
15:30 - 16:00
Room: Günter-Grieger-Hörsaal
16:00 Closing session, Coffee and Cakes
Closing session, Coffee and Cakes
16:00 - 17:30
Room: Günter-Grieger-Hörsaal
Contributions

16:00 Conference review and Announcements from the scientific committee

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