China is closing to make its "artificial sun"
http://www.chinatechgadget.com/china...icial-sun.html
2013-01-06 — On Jan 5th, Heifei Insititute of Physical Science Chinese Academy of Sciences (CASHIPS) announces that its "big science projects": EAST (Experimental Advanced Superconducting Tokamak) or so-called "artificial sun" has obtained a significant experimental results. The auxiliary heating neutral beam injection (NBI) system works successfully to 100 seconds long pulses hydrogen neutral beam extraction in the integrated test platform, initially verify the system's ability to operate in long pulse.
Scientists introduce that it is China's first time to realize long-pulse neutral beam extraction, marking China has taken a solid step on the research field of neutral beam injection heating .
The Experimental Advanced Superconducting Tokamak (EAST, internal designation HT-7U) is an experimental superconducting tokamak magnetic fusion energy reactor in Hefei, the capital city of Anhui Province, in eastern China. The experiment is being conducted by the Hefei-based Institute of Plasma Physics under the Chinese Academy of Sciences. The project was proposed in 1996 and approved in 1998. According to a 2003 schedule, buildings and site facilities were to be constructed by 2003, and tokamak assembly to take place from 2003 through 2005. EAST can carry out the most cutting-edge research related with thermonuclear reactor, such as the neutral beam injection system.
The EAST's neutral beam injection system is fully developed by China itself and covers a precision high current ion source, high vacuum technology, low-temperature refrigeration technology, high voltage isolation technology, remote monitoring and control, and plasma and beam diagnostics.
In the newest experiments, the CASHIPS team only spends 10 day to archieve excellent experimental result of 30 keV beam energy, beam current of 9 Amps, 0.3 MW of beam power and neutral beam elicit with pulse width of 100 seconds. Experiment successfully tested megawatt level high current ion source performance and validate that NBI various subsystems have the ability to run long pulse of 100 seconds.
The experimental results obtained landmark which means that China's self-developed neutral beam injection heating system has been reached international advanced level and basically overcome major technical difficulties, and prepares a solid foundation for the neutral beam injection system applied in 2013 EAST physics experiments.
http://www.chinatechgadget.com/china...icial-sun.html
2013-01-06 — On Jan 5th, Heifei Insititute of Physical Science Chinese Academy of Sciences (CASHIPS) announces that its "big science projects": EAST (Experimental Advanced Superconducting Tokamak) or so-called "artificial sun" has obtained a significant experimental results. The auxiliary heating neutral beam injection (NBI) system works successfully to 100 seconds long pulses hydrogen neutral beam extraction in the integrated test platform, initially verify the system's ability to operate in long pulse.
Scientists introduce that it is China's first time to realize long-pulse neutral beam extraction, marking China has taken a solid step on the research field of neutral beam injection heating .
The Experimental Advanced Superconducting Tokamak (EAST, internal designation HT-7U) is an experimental superconducting tokamak magnetic fusion energy reactor in Hefei, the capital city of Anhui Province, in eastern China. The experiment is being conducted by the Hefei-based Institute of Plasma Physics under the Chinese Academy of Sciences. The project was proposed in 1996 and approved in 1998. According to a 2003 schedule, buildings and site facilities were to be constructed by 2003, and tokamak assembly to take place from 2003 through 2005. EAST can carry out the most cutting-edge research related with thermonuclear reactor, such as the neutral beam injection system.
The EAST's neutral beam injection system is fully developed by China itself and covers a precision high current ion source, high vacuum technology, low-temperature refrigeration technology, high voltage isolation technology, remote monitoring and control, and plasma and beam diagnostics.
In the newest experiments, the CASHIPS team only spends 10 day to archieve excellent experimental result of 30 keV beam energy, beam current of 9 Amps, 0.3 MW of beam power and neutral beam elicit with pulse width of 100 seconds. Experiment successfully tested megawatt level high current ion source performance and validate that NBI various subsystems have the ability to run long pulse of 100 seconds.
The experimental results obtained landmark which means that China's self-developed neutral beam injection heating system has been reached international advanced level and basically overcome major technical difficulties, and prepares a solid foundation for the neutral beam injection system applied in 2013 EAST physics experiments.
