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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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Fusion Science and Technology
Latest News
Digital control system installed at China’s Linglong One
Earlier this month, the first digital control system was put in place at Linglong One, a small modular reactor demonstration project being built at the Changjiang nuclear power plant in Hainan Province. This is the world’s first land-based commercial SMR and is controlled by China National Nuclear Power Co. Ltd., a subsidiary of the China National Nuclear Corporation (CNNC).
G. Kuang, J. Shan, W. Xu, Q. Zhang, Y. Liu, D. Liu, F. Liu, J. Lin, G. Zheng, J. Wu, W. Zhu, B. Ding, L. Shang, H. Xu, C. Yang, Y. Zhou, Y. Fang, J. Xie, Y. Wan
Fusion Science and Technology | Volume 36 | Number 2 | September 1999 | Pages 212-218
Technical Paper | doi.org/10.13182/FST99-A103
Articles are hosted by Taylor and Francis Online.
A lower hybrid current drive system has been built for the HT-7 superconductive tokamak to deliver a 1.2-MW microwave at a frequency of 2.45 GHz for a pulse length of up to 5 s. Twelve klystron amplifiers are used as wave generators, each generating a 100-kW (130 kW at maximum) microwave. A grill coupler composed of 2 x 12 waveguides is used to launch the waves from the 12 klystrons. The wave phase difference between the adjacent waveguides in either row of the grill can be set at any desired value by feedback controlling the digital phase shifters in the low-power microwave circuits in front of the klystrons. The 12 klystrons are fed by two equal high-voltage power supplies. The technical reliability of the system is shown by experimental results.
