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Fusion Science and Technology
Latest News
Zap Energy hits 37-million-degree electron temperatures in compact fusion device
Zap Energy announced April 23 that it has reached 1-3 keV plasma electron temperatures—roughly the equivalent of 11 to 37 million degrees Celsius—using its sheared-flow-stabilized Z-pinch approach to fusion. Reaching temperatures above that of the sun’s core (which is 10 million degrees Celsius temperature) is just one hurdle required before any fusion confinement concept can realistically pursue net gain and fusion energy.
Sadayoshi Murakami, Noriyoshi Nakajima, Masao Okamoto
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 256-259
Helical Systems | doi.org/10.13182/FST95-A11947082
Articles are hosted by Taylor and Francis Online.
Finite β effects on the ICRF minority heating and NBI heating are investigated in the Large Helical Device (LHD) by means of the Monte Carlo simulation code using the numerically calculated magnetohydrodynamic equilibrium. The large Shafranov shift occurs in finite β to change the magnetic field configuration and to alter the particle drift motions. It is found that the change of magnetic field configuration due to finite β effects enhances the losses of high energetic trapped particles produced by ICRF heating. However the clear change of heating efficiency is not observed in finite β. It is also found that the deposition profile of neutral beams is modified due to the Shafranov shift in finite β and the center deposition is enhanced in high density case.