TJ-II:Magnetic configuration

The magnetic configuration of TJ-II in vacuum is completely determined by the currents flowing through the external coils. Magnetic configurations are labelled as 'xxx_yy_zz', where

• 'xxx': 10 times the current (in kA) in the circular coil
• 'yy': 10 times the current (in kA) in the helical coil
• 'zz': 10 times the current (in kA) in the vertical field coils

Often used configurations are:

• 100_44_64 (a = 0.1925 m, ${\iota }_0/2\pi =1.55$, V_plasma = 1.098 m³)
• 100_48_65 (a = 0.191 m, ${\iota }_0/2\pi =1.591$, V_plasma= 1.09 m³)