The neutral beam injection system prototype independently developed by Shuyan Juchuang has been officially completed and completed its first plasma discharge.

Recently, the neutral beam injection (NBI) system prototype independently developed by Shuyan Juchuang, a domestic upstream commercialization company in controlled nuclear fusion, was officially completed, and on September 30, 2026, it successfully completed the first neutral beam plasma discharge verification. This marks the landing of China's first neutral beam engineering verification prototype fully independently developed along the entire chain by an upstream fusion commercialization company, achieving a technical closed loop from system design to productization verification. It is expected that the relevant capabilities of the system will reach an engineering state ready for direct commercial procurement in December this year.

With the smooth completion and successful discharge of this prototype, the company's 2026 annual strategic goals set at the beginning of the year have all been achieved ahead of schedule, including the completion and commissioning of multiple core test platforms and the successive commissioning of high-precision precision manufacturing production lines. At present, the company's R&D team has fully launched its forward-looking R&D and commercialization layout for 2027, further accelerating the development pace of core fusion main equipment capable of engineering delivery.

This discharge test was carried out in a main vacuum chamber with a volume of approximately 10 cubic meters. The system adopted a hot cathode arc discharge positive ion source scheme and successfully excited and generated high-density plasma under no high-voltage operating conditions. Measured data show that the hydrogen plasma density in the chamber is on the order of $10^{17}\ \text{m}^{-3}$, and the electron temperature is approximately 2 electron volts (eV), comprehensively verifying the synergistic operating performance of the ion source geometry, magnetic field spatial topology, and the supporting power supply, circulating cooling, ultra-high vacuum, and measurement and control subsystems.

As the core engineering foundation, this comprehensive test platform focused on tackling four major implementation challenges: deep multi-system coupling verification, parallel development of multiple technical routes, operational test data feeding back into engineering design, and reserved space for subsequent long-term expansion. Relying on its self-developed interdisciplinary system, the team replaced traditional fragmented subcontracting with an engineering procurement construction (EPC) model, greatly shortening equipment delivery cycles and significantly optimizing the overall system construction cost.

According to the latest engineering progress milestones, the R&D team will fully carry out high-voltage live operating condition joint commissioning and ion beam extraction tests from October to November, focusing on verifying the high-voltage insulation architecture and the dynamic output characteristics of special high-voltage power supplies; it is expected that by December 2026, the long-pulse electron cyclotron resonance heating (ECRH) system test platform will be basically completed, and it is planned to complete the infrastructure construction of the radio frequency (RF) ion source platform in the first half of 2027, forming a fusion auxiliary heating equipment delivery capability covering all operating conditions.

At present, Shuyan Juchuang's core technical team has gathered professionals from top domestic research institutes and key engineering universities, covering multidisciplinary fields such as plasma physics, special high-voltage engineering, ultra-high vacuum, and power electronics. In line with the global technological trend of controlled nuclear fusion equipment evolving toward standardization and modularization, this test platform will, in the future, while accelerating the commercialization of its own products, also open and share with ecosystem partners across the industry, providing solid engineering support for the independent controllability of key core equipment in China's fusion industry chain.