Comparison of EAST with DIII-D tokamak

The size of EAST tokamak is similar to that of DIII-D tokamak. The comparison of the main parameters are summarized in Table. 1. The significant difference between EAST and DIII-D is that DIII-D has a larger minor radius (0.67m for DIII-D and 0.45m for EAST), which makes DIII-D able to operate with a larger toroidal current than that EAST can do ( $3.0 \ensuremath{\operatorname{MA}}$ for DIII-D and $1.0 \ensuremath{\operatorname{MA}}$ for EAST) for the same current density. Another significant difference between EAST and DIII-D is that the coils of EAST are supper-conductive while the coils of DIII-D are not. The supper-conductive coils make EAST be able to generate much larger magnetic field (maximum $3.5 T$ for EAST and maximum $2.2 T$ for DIII-D) and operate at longer pulse.

Table 1: Comparison of main parameters of EAST and DIII-D tokamak.

	EAST	DIII-D
Major radius $R_0$	$1.85 m$	$1.67 m$
minor radius $a$	$0.45 m$	$0.67 m$
Maximum plasma current	1.0MA	$3.0 \ensuremath{\operatorname{MA}}$
Maximum toroidal field $B_t$	$3.5 T$	$2.2 T$
Available Ohm magnetic flux	12Vs	$\approx 10.5 \ensuremath{\operatorname{Vs}}$