US-Japan Workshop on RF Heating and Current Drive Physics

Mar 17, 2025, 8:00 AM → Mar 19, 2025, 4:15 PM Asia/Tokyo

4F meeting room at Heliotron experimental building (Kyoto University Uji campus)

US-Japan Workshop on RF Heating and Current Drive Physics 

Welcome to the official website for US-Japan Workshop on RF Heating and Current Drive Physics. Here, you can find workshop information, register for the workshop, and submit your abstract. 

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Announcement 

Mar. 14 2025: Please pay the fee for the workshop dinner on March 18 at the registration desk(Dr. Yanai). Venue infomartion: https://www.tsukinokurabito.jp/english.html

Mar. 12 2025: Timetable is open.

Feb. 11 2025: Wifi connection can be used with eduroam. Please register in advance at your university or institute.

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About the workshop

Dates: Monday, March 17, 2025 at 9:00 am to mid-day on Wednesday, March 19, 2025.

Venue: 4th floor of North Bldg. No.4 at Kyoto University Uji campus
(#62 on this map -> https://www.kyoto-u.ac.jp/en/access/uji-campus).

Deadline: March 14th extended from February 10th. (for both registration and abstract submission)

※Please register and submit your abstract by the above date. Abstract template is available here.

 

Local organizers: K. Nagasaki (Kyoto Univ.), S. Murakami (Kyoto Univ.)

 

Contacts: M. Ono(PPPL), M. Nishiura (NIFS)

 

※You may reach the venue in 15 minutes on foot from Obaku station.It takes 20 minutes from Obaku station to Kyoto station by train.
(Google map ->https://maps.app.goo.gl/bpVqjJMhr4itKC9t7)

※We recommend booking a hotel in Kyoto City or Uji City.

abstract_template_US-Japan_Workshop_2025.docx

Mon, March 17

Registration

1 Opening remarks

2 1 (Plenary) Progress in including non-local finite temperature effects to FEM-based RF fullwave simulations

Speaker: Syun'ichi Shiraiwa (PPPL)

3 2 (Invited) Investigation of RF Synergy Effects Between EC and LH Current Drive in EAST

Speaker: Seung Gyou Baek

10:10 AM Coffee break & workshop photo

4 3 (Invited) Novel x-ray technology for long-pulse LHCD & ICRH operation at WEST

Speaker: Luis Delgado-Aparicio (PPPL)

5 4 Two-dimensional axisymmetric finite element simulation of lower hybrid waves with an iterative scheme

Speaker: Fumiya Adachi (The Univeristy of Tokyo)

11:30 AM Lunch break

6 5 Kinetic full-wave analysis in tokamak plasmas using integral form of dielectric tensors

Speaker: Atsushi Fukuyama (Kyoto University)

7 6 (Invited) Sheath rectification on WEST

Speaker: Wouter Tierens (ORNL)

8 7 EC technology development activities at Kyoto Fusioneering

Speaker: Toru Tsujimura (Kyoto Fusioneering Ltd.)

Free discussion

4:00 PM Adjourn

Tue, March 18

9 8 Simulation study of ECH multiple resonance heating and energetic electron generation in the QUEST

Speaker: Sadayoshi Murakami (Kyoto University)

10 9 (Invited) First results on ECH and plans for ICRF Heating on WHAM

Speaker: Cary Forest (University of Wisconsin, Madison)

9:30 AM Coffee break & workshop photo

11 10 EC current start-up using a retarding electric field in the QUEST spherical tokamak and a future plan for the next ECH experiments

Speaker: Takumi Onchi (Kyushu University)

12 11 (Invited) Automated robust machine learning enhanced ICRF heating predictions

Speaker: Alvaro Sanchez-Villar (Princeton Plasma Physics Laboratory / Princeton University)

13 12 Multiphysics Analysis of Gyrotrons for a Helical Fusion Reactor Using the 3D Electromagnetic Field Simulator CST Studio

Speaker: Kenichi Kaneta (Helical Fusion co., ltd.)

14 13 Status of LHD ECH system for next campaign and related topics

Speaker: Masaki Nishiura (National Institute for Fusion Science)

11:45 AM Lunch break

15 14 (Plenary) Recent DIII-D Results on Electron Heating and Current Drive with Helicon Waves at 476 MHz

Speaker: Robert Pinsker (General Atomics)

16 15 Investigation of Influence of the Doppler Effect on Electron Cyclotron Heating in the Large Helical Device

Speaker: Ryohma Yanai (NIFS)

17 16 (Invited) Wave-filament Interaction Experiments on the LArge Plasma Device (LAPD)

Speaker: Joshua Larson (University of California, Los Angeles)

18 17 (Invited) Installation, Commissioning, and Experimental Campaign of the High Field Side Lower Hybrid Current Drive Experiment on DIII-D

Speaker: Andrew Seltzman (MIT)

3:00 PM Coffee break

19 18 Identification of coexisting local and non-local turbulence using modulated electron cyclotron heating method

Speaker: Naoki Kenmochi (National Institute for Fusion Science)

20 19 Diagnostic plan of ECE and ECE Imaging in the Compact Helical Device

Speaker: Daiki Nishimura (National Institute for Fusion Science)

21 20 Nonlinear Gaussian Process Tomography with non-negative constraint for Spatially Resolved Plasma Analysis in RT-1

Speaker: Kenji Ueda (National Institute for Fusion Science)

4:25 PM Adjourn

Heliotron J tour (contact to nagasaki.kazunobu.4x@kyoto-u.ac.jp)

Dinner

https://r.gnavi.co.jp/c692700
Tsukino Kura at Fushimi

Wed, March 19

22 21 (Invited) Dual utilization of X-I and O-I ECCD for fully solenoid-free operations for a fusion reactor

Speaker: Masayuki Ono (PPPL, Princeton University)

23 22 (Invited) Interpretive Modeling of Tungsten Erosion and Transport at RF Antenna Structures in the WEST Tokamak

Speaker: Atul Kumar (Oak Ridge National Laboratory, USA)

9:30 AM Coffee break & workshop photo

24 23 Reconstruction of electron velocity distribution function and Gibbs entropy from electron cyclotron emission spectrum

Speaker: Eiichirou Kawamori (Institute of Space and Plasma Sciences, National Cheng Kung University, Taiwan)

Application to research budget through US-Japan collaboration(new framework)

Convener: Masaki Nishiura (National Institute for Fusion Science)

11:00 AM Adjourn