TJ-II:Magnetic coordinates: Difference between revisions

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The diagnostics perform measurements in real space. The location of points is given in one of these [[Toroidal coordinates|coordinate systems]] (units according to the S.I. system, m and rad):
The diagnostics perform measurements in real space. The location of points is given in one of these [[Toroidal coordinates|coordinate systems]] (units according to the S.I. system, m and rad):


# Cartesian (''X'', ''Y'', ''Z'') with its origin at the centre of the TJ-II device, the X-axis pointing due West, the Y-axis due South, and the ''Z''-axis up (see [[TJ-II:Sectors]]).
# Cartesian (''X'', ''Y'', ''Z'') with its origin at the centre of the TJ-II device, the X-axis pointing due North, the Y-axis due West, and the ''Z''-axis up (see [[TJ-II:Sectors]]).
# [[Toroidal coordinates|Cylindrical]] (''R'', ''&phi;'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''&phi;'' = ''Y/X''.
# [[Toroidal coordinates|Cylindrical]] (''R'', ''&phi;'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''&phi;'' = ''Y/X''.