Satoshi Awaji
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
Practical Nb3Sn wires are still under improvement for high field applications such as accelerator, nuclear fusion, NMR and so on. Recently, the increase of non-Cu Jc are required for the future circular collider (FCC). In addition, the strengthening of the Nb3Sn wires...
Hiroyasu Utoh
National Institutes for Quantum Science and Technology,
Rokkasho, Aomori 039-3212, Japan
ABSTRACT
A fusion demonstration (DEMO) reactor requires toroidal field (TF) coils larger than those used in ITER and can withstand higher electromagnetic forces. This creates significant challenges regarding the manufacturability of the TF coils, the increased electromagnetic...
Korean Fusion Energy Development Promotion Law (FEDPL) was enacted in 2007 to promote a long-term cooperative fusion research and development among participating industries, universities and research institutes. As a following step, a conceptual design study for a steady-state Korean fusion demonstration reactor (K-DEMO) has been initiated in 2012. As a result of a conceptual design study for...
A summary of the session on the development of fusion magnets in the world is given from the seven talks and the overall discussion. The session covers the topics on “Development of LTS and HTS wires”, “Magnet development for national projects”, “Magnet development for public-private partnership”, “Test facilities”, and “Irradiation”. Highlights from the talks are reviewed, and the future...
Outline the aims of the session, give a broad overview of TFC developments to set up deeper talks without them covering all details
Fusion For Energy is responsible for delivering large units of the ITER fuel cycle. This involves extensive design and technology developments for the tritium plants’ Isotope Separation and Water Detritiation systems in preparation for manufacturing. The manufacturing of the cryogenic adsorption pumps for the ITER torus and plasma pumping is well advanced, and the delivery of the fully...
Since the dawn of the CANDU nuclear power technology, its significance as a tritium fuel supply source for fusion developments has been well recognized. The tritium by-product from the capture of neutrons by the heavy water in CANDU reactors is removed for safe operation of the reactors, stored in solid form and supplied for various peaceful applications including fusion energy research...
During deuterium-tritium (D-T) fusion reactions, the reactor core predominantly generates high-energy fusion neutrons. These neutrons diffuse outward, exposing in-vessel components of the Tokamak vacuum chamber—such as the first wall, blanket, and divertor—to an intense neutron field characterized by high flux and energy deposition. Interactions between neutrons and structural materials within...
Controlled fusion reactors with steady-state operation (SSO) will require a fundamentally new approach to the organization of the fuel cycle and the use of other innovative solutions for technological systems, since all existing and planned facilities were designed for a pulse-periodic mode in which the gas mixture is processed between discharges. Switching to long-term pulses will require...
In future tokamak reactors higher magnetic field will be required to confine the plasma for a longer time to achieve higher confinement density. It is anticipated that higher magnetic field for future tokamak will be provided by high temperature superconducting coils, with good stability and low cryogenic requirements. Second-generation REBCO (2G HTS) high temperature superconductors (@77 K),...
The transport and retention of hydrogen isotopes is of vital importance for the realization of future commercial fusion reactors, because it is closely related to plasma operation, fuel recycling and radiation safety. However, the hydrogen isotope behavior in fusion reactor materials is not well understood. Reduced activation ferritic-martensitic (RAFM) steel and tungsten (W) are promising...
The Burning Plasma Experimental Superconducting Tokamak (BEST) is under construction in Hefei, China. Designed as a compact high-field tokamak, BEST aims to explore burning plasma physics, achieve advanced steady-state plasma performance (Q>1) , and develop high-Q fusion operations and realization of real-time T production, extraction and cycling. With long pulse duration and compact size,...
The cool-down of large-scale Cable-in-Conduit Conductor (CICC) superconducting magnets presents significant complexity, requiring careful management to ensure operational safety. This study proposes a quasi-three-dimensional thermal-hydraulic analysis model, specifically designed for large-scale CICC superconducting magnets. The model is applied to the cool-down (300 K-80 K) for the Central...
The landscape of fusion energy development is undergoing a fundamental transformation, increasingly driven by private sector initiatives. While both public and private entities target First-Of-A-Kind fusion energy systems such as DEMOs and Pilot Plants, their technical approaches and timelines differ significantly. Private sector actors emphasize accelerated deployment, productization, and...
In response to a U.S. Department of Energy (DOE), Office of Fusion Energy Sciences (FES) request for information in 2023, sixteen different concepts were submitted by the community for consideration as a fusion prototypic neutron source (FPNS). The proposed concepts vary greatly in approach, maturity, and the degree to which they accurately mimic a fusion energy system environment. To gain a...
Korea’s Strategy for Fusion Energy Realization
Keeman Kim1 and Yeongkook OH2
1Korea Institute of Energy Technology, Naju, 58330, Republic of Korea
2Korea Institute of Fusion Energy, Daejeon, 34133, Republic of Korea
Korean Fusion Energy Development Promotion Law (FEDPL) was enacted in 2007 to promote a long-term cooperative fusion research and development among participating...
Kentaro Ochiai, Saerom Kwon, Yoji Someya, Yoshiteru Sakamoto, Takanori Hirose, Yoshinori Kawamura, Yuki Koga, Kai Masuda, Keitaro Kondo, Kouki Kumagai
National Institutes for Quantum Science and Technology
ochiai.kentaro@qst.go.jp
Toward the development of JA-DEMO reactors and their neutron engineering are being conducted in Japan. In this talk, we will review the nuclear analysis of...
Dieter Leichtle1, Christian Bachmann2, Jin Hun Park1, Pavel Pereslavtsev2
1Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
2EUROfusion Consortium, Fusion Technology Department, Garching, Germany
Email corresponding author: dieter.leichtle@kit.edu
Recent efforts in the EUROfusion programme towards the realization of a fusion power plant are aiming at developing the conceptual...
For future D-T fusion devices including DEMO reactors and plants, it is essential to achieve the high neutronics performance and to build an efficient tritium fuel cycle. There have been a few future fusion devices developed or under development in China, such as the CFETR (China Fusion Engineering Test Reactor), the burning plasma superconduting experimental tokamak device and the CFEDR...
Aggressive timelines for commercial fusion deployment by the private sector necessitate rapid design iterations to facilitate the build-measure-learn cycle. Many challenges to this process arise in the design of fusion power plants due to the highly integrated nuclear nature of these systems. In particular, nuclear responses throughout the facility are responsible for establishing requirements...
Changan CHEN, Xiaolin WANG, Wenhua LUO, Shuming PENG, Huaqing KOU, Jiangfeng SONG, Heyi WANG, Chengjian XIAO
T-plant team for China Fusion Engineering Test Reactor
Abstract
Supported by the national program for fusion energy development in China, the tritium technology team has finished in the concept design of tritium plant for China Fusion Engineering Test Reactor with the fusion power...
