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IMAS data are contained in IDSs which are containers described by the IMAS Data Dictionary. An IDS represents either a Diagnostics (like the 'bolometer' IDS), or a System tokamak subsystem (like the 'camera_ir'), or a concept like the 'equilibrium' IDS representing the a plasma equilibrium.
An IDS can contain 0D (scalar) data or/and arrays with dimensions from 1 to 6.
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