The 6th US-Japan workshop on Power and Particle Control in a Steady State Magnetic Fusion DEMO Reactor by Liquid Metal Plasma-Facing Components

Feb 18, 2026, 1:15 PM → Feb 20, 2026, 12:10 PM Asia/Tokyo

National Institute for Fusion Science

MASUZAKI Suguru (National Institute for Fusion Science)

Welcome to US-Japan Workshop "The 6th US-Japan Workshop on Power and Particle Control in a Steady State Magnetic Fusion DEMO Reactor by Liquid Metal Plasma-Facing Components". The principal objective of this Workshop is to bring together experts to explore the application of liquid metals as plasma facing material for future fusion reactors. This workshop is hosted by National Institute for Fusion Science. This workshop is held as joint workshop with a workshop of "Unexplored physics and chemistry of liquid metal wall under extreme environment"

---Scope------------------
Liquid Metal Flows

Liquid Metal Divertor Concepts and Experimental Facilities

Divertor Heat flux Mitigation and Plasma-Surface Interactions

Physics on boundary between liquid metal and solid

---Venue------------------
National Institute for Fusion Science
Oroshi-cho 322-6, Toki city, Gifu, Japan
(in person and remote)

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JP-coordinator:　Suguru Masuzaki, National Institute for Fusion Science, masuzaki.suguru@nifs.ac.jp
US-coordinator:　Masa Ono, Princeton Plasma Physics Laboratory, 　mono@pppl.gov

access.pdf

Wed, February 18

1:15 PM → 1:25 PM Opening

1:25 PM → 1:45 PM M. Shimada: Memorial for Yoshi Hirooka

1:45 PM → 2:15 PM R. Sakamoto (NIFS): Overview of the NIFS activities

2:15 PM → 2:45 PM M. Shimada: Preliminary Analysis of Divertor Concepts for Compact Reactors

2:45 PM → 3:00 PM Coffee break

3:00 PM → 5:00 PM NIFS tour

Thu, February 19

9:10 AM → 9:40 AM R. Maingi (PPPL): Overview of the US FIRE collaboration; Advancing the maturity of liquid metal plasma facing materials and first wall concepts

9:40 AM → 10:10 AM A. Khodak (PPPL): Challenges of liquid metal application in fusion devices

10:10 AM → 10:40 AM Y. Hamaji (NIFS): Recent results of liquid metal divertor exp. at NIFS (tentative)

10:40 AM → 11:00 AM Coffee break

11:00 AM → 11:30 AM Max Monange (EX-Fusion): Development and Integration of a Liquid First Wall Concept for Laser Fusion Reactors Using High-Purity Lead-Lithium and ODS FeCrAl Alloy

11:30 AM → 12:00 PM L. Klingler (PPPL): Overview of Ongoing Liquid Metal Work by Plasma Control at the PPPL

12:00 PM → 12:30 PM T. Goto (Helical Fusion Co., Ltd.): Overview of Liquid Metal Research and Development at Helical Fusion Co., Ltd. (tentative)

12:30 PM → 1:30 PM Lunch

1:30 PM → 2:00 PM D. Andruczyk (University of Illinois Urbana-Champaign): A Path Towards a Flowing Liquid Lithium Divertor

2:00 PM → 2:30 PM B. Moore (University of Illinois Urbana-Champaign): Preliminary Hydrogen Implantation and Thermal Extraction Results in the Actively Pumped Open-Surface Lithium LOop (APOLLO)

2:30 PM → 3:00 PM F. Okino (Kyoto University): Hydrogen isotope release from liquid metal via intense internal flow within droplets and its applications for future blanket system

3:00 PM → 3:30 PM Coffee break

3:30 PM → 4:00 PM J. Yagi (Kyoto University): Development of alkali metal vapor diffusion pump

4:00 PM → 4:30 PM K. Shigemori (Osaka University): Simulation of Liquid First Wall Thermodynamics For Fast Ignition Inertial Fusion Energy Reactors

4:30 PM → 5:00 PM Y. Ando (Kindai University): Effect of intermediate alloy formation between liquid metal and substrates on hydrogen permeation

Fri, February 20

9:10 AM → 9:40 AM K. Kawashimo (University of Illinois Urbana-Champaign): Corrosion Behavior of Tungsten Manufactured Using Laser Powder Bed Fusion in Liquid Lithium at 923 K for 100 h

9:40 AM → 10:10 AM T. Sasaki (Nagaoka University of Technology): Experimental Investigation of Liquid Metal Flow Control under Various Conditions

10:10 AM → 10:40 AM E. Emdee (PPPL): Recent Modeling of A Liquid Metal Divertor for the Spherical Tokamak Advanced Reactor (STAR)

10:40 AM → 11:00 AM Coffee break

11:00 AM → 12:00 PM Discussion and Summary

12:00 PM → 12:10 PM Closing