TJ-IU: Difference between revisions
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The number of turns of the coil around the vacuum chamber is ''m''=6. | The number of turns of the coil around the vacuum chamber is ''m''=6. | ||
The vertical field is generated by a set of vertical field coils. | The vertical field is generated by a set of vertical field coils. | ||
{| class="wikitable" align="center" border="1" | |||
!''Parameter'' !!''Value''!!''Unit'' | |||
|- | |||
|Major radius, ''R<sub>0</sub>'': || 0.60 || m | |||
|- | |||
|Mean plasma radius, ''a'': || 0.10 || m | |||
|- | |||
|Minor coil radius, ''R<sub>c</sub>'': || 0.24 || m | |||
|- | |||
|Number of periods, ''m'': || 6 || | |||
|- | |||
|Rotational transform at the axis, ''ι<sub>0</sub>'': || 0.30 || | |||
|- | |||
|Magnetic shear: || almost zero || | |||
|- | |||
|Magnetic well depth: || 6.9 || % | |||
|- | |||
|Magnetic ripple at the axis: || 7.6 || % | |||
|- | |||
|Helical axis elongation: || 0.025 || m | |||
|- | |||
|Toroidal field, ''B<sub>T</sub>'', at φ=30 degrees: || 0.5 || T | |||
|- | |||
|2<sup>nd</sup> harmonic Electron Cyclotron Heating, 28 - 37.5 GHz: || 200 || kW | |||
|} | |||
[[File:Camera_TJ-IU.jpg|300px|thumb|left|The making of the TJ-IU vacuum vessel]] | [[File:Camera_TJ-IU.jpg|300px|thumb|left|The making of the TJ-IU vacuum vessel]] | ||
Revision as of 06:44, 19 July 2009
In the torsatron TJ-IU, a single coil generates the helicoidal magnetic field (l=1). The number of turns of the coil around the vacuum chamber is m=6. The vertical field is generated by a set of vertical field coils.
| Parameter | Value | Unit |
|---|---|---|
| Major radius, R0: | 0.60 | m |
| Mean plasma radius, a: | 0.10 | m |
| Minor coil radius, Rc: | 0.24 | m |
| Number of periods, m: | 6 | |
| Rotational transform at the axis, ι0: | 0.30 | |
| Magnetic shear: | almost zero | |
| Magnetic well depth: | 6.9 | % |
| Magnetic ripple at the axis: | 7.6 | % |
| Helical axis elongation: | 0.025 | m |
| Toroidal field, BT, at φ=30 degrees: | 0.5 | T |
| 2nd harmonic Electron Cyclotron Heating, 28 - 37.5 GHz: | 200 | kW |
The device was entirely built in Spain and taken into operation in 1994. In 1999, the device was sent to the University of Kiel, Germany, under a permanent loan agreement, and renamed TJ-K. Currently, TJ-K is located at the University of Stuttgart in Germany.