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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 co-ordinate 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 co-ordinate systems (units according to the S.I. system, m and rad): | ||
# Cartesian (''X'', ''Y'', ''Z'') with its origin at the | # Cartesian (''X'', ''Y'', ''Z'') with its origin at the centre of the TJ-II device, the X-axis pointing due East, the Y-axis due North, and the ''Z''-axis up. | ||
# Cylindrical (''R'', ''φ'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''φ'' = ''Y/X''. | # Cylindrical (''R'', ''φ'', ''Z''), where ''R<sup>2</sup>'' = ''X<sup>2</sup>'' + ''Y<sup>2</sup>'' and tan ''φ'' = ''Y/X''. | ||