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Journal Article

Comparison of turbulence measurements and simulations of the low-temperature plasma in the torsatron TJ-K

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Citation

Lechte, C., Niedner, S., & Stroth, U. (2002). Comparison of turbulence measurements and simulations of the low-temperature plasma in the torsatron TJ-K. New Journal of Physics, 4: 34. Retrieved from http://www.iop.org/EJ/abstract/1367-2630/4/1/334.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-4219-6
Abstract
A toroidal low-temperature plasma is used for comparative turbulence studies. Measurements are carried out with Langmuir probe arrays in the entire plasma cross section. The data are closely compared with drift-Alfven turbulence simulations. Although the parameters in a low-temperature plasma are very different from those in fusion plasmas, the dimensionless parameters governing the drift-wave physics are comparable. Hence this study can also give insight into high-temperature plasma turbulence. In order to identify relevant characteristic signatures of different turbulence-driving mechanisms, simulations were carried out for a wide range of plasma parameters. The simulation results are compared with first measurements.