Summary of the project

Taking new accelerator technology into the field of nuclear fusion, we will make a paradigm shift in fusion energy development by achieving high intensity and compact innovative accelerator technology.
To achieve high intensity beam, we will establish innovative accelerator technology for ampere-class beams, generating number of neutrons that surpass the nuclear fusion material irradiation facility (IFMIF) and accelerating the development of nuclear fusion reactor materials.
To realize compactness, we will verify the feasibility of a small beam-driven fusion reactor by injecting and heating ions directly into the plasma using an automatic cyclotron resonance accelerator. In addition, we will establish a technique for linearly extracting the gyro‑accelerated beam from the automatic cyclotron resonance accelerator, thereby enabling a wide range of applications (Fig. 1).
By realizing these research and development projects, we aim for a future society with "self-sufficient fuel without relying on imports," "a society that does not increase high-level radioactive waste," "a society that can coexist with fusion reactors," and "an energy source that supports activities in uncharted territories of humanity (such as deep-sea or interplanetary travel)."

Fig. 1 Linear extraction of a gyro-accelerated beam

Milestone by year 2034

【 Development of Ampere-Class Beam Accelerator Technology 】

To achieve an accelerator that brings a paradigm shift to fusion energy, we will complete the overall design of the innovative accelerator.

【 Development of Automatic Cyclotron Resonance Accelerator 】

To realize the diversity of fusion systems, we will complete the basic design of a beam-driven fusion system.

Milestone by year 2029

【 Development of Ampere-Class Beam Accelerator Technology 】

To realize an accelerator capable of inducing a paradigm shift in fusion energy, we will establish the required elemental technologies. These elemental technologies include beam simulation techniques, ion source technology, radio-frequency accelerating resonator technology, high-field solenoid magnet technology, and target technology.

【 Development of Automatic Cyclotron Resonance Accelerator 】

We aim to achieve, for the first time in the world, successful ion acceleration using an automatic cyclotron resonance accelerator, and to establish a unique technology for extracting gyro-accelerated ion beams from the solenoid without beam loss. Through this achievement, we will demonstrate the potential for realizing greater diversity in fusion system configurations.

Performers

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