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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 | # 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'', ''φ'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''φ'' = ''Y/X''. | # [[Toroidal coordinates|Cylindrical]] (''R'', ''φ'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''φ'' = ''Y/X''. | ||