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TJ-II:Construction: Difference between revisions
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The all-metal [[TJ-II:Sectors|vacuum vessel]] of TJ-II has a helical geometry and has 96 [[TJ-II:Ports|ports]]. Seven [[TJ-II:cooling system|water-cooled]] copper coil systems with maximum currents between 7 kA and 32.5 kA provide the helical confinement field. The Bitter-type toroidal coils are split in half for assembly reasons. Four sets of poloidal coils produce the vertical, radial and OH fields. | The all-metal [[TJ-II:Sectors|vacuum vessel]] of TJ-II has a helical geometry and has 96 [[TJ-II:Ports|ports]]. Seven [[TJ-II:cooling system|water-cooled]] copper coil systems with maximum currents between 7 kA and 32.5 kA provide the helical confinement field. The Bitter-type toroidal coils are split in half for assembly reasons. Four sets of poloidal coils produce the vertical, radial and OH fields. | ||
TJ-II is a very compact experimental device with highly stressed materials and very narrow tolerances to achieve good confinement properties. This required high quality standards for the fabrication and assembly of the device. For the high precision positioning of all stellarator components, a computer-based theodolite system was employed. A large number of tests were done during the assembly phase. Afterwards a comprehensive commissioning program was performed. | TJ-II is a very compact experimental device with highly stressed materials and very narrow tolerances to achieve good confinement properties. This required high quality standards for the fabrication and assembly of the device. For the high precision positioning of all stellarator components, a computer-based [[:Wikipedia:Theodolite|theodolite]] system was employed. A large number of tests were done during the assembly phase. Afterwards a comprehensive commissioning program was performed. | ||
The [[TJ-II:Power supply|pulsed power supply]] was tested up to the maximum current values by means of a dummy load consisting of up to five inductively coupled coils. | The [[TJ-II:Power supply|pulsed power supply]] was tested up to the maximum current values by means of a dummy load consisting of up to five inductively coupled coils. | ||