TJ-II:Soft X-rays

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Multichannel Soft X-Ray system

TJ-II Soft X-Ray camera array

The TJ-II multichannel soft X-ray system consists of 5 cameras with 16 channels each, allowing tomographic reconstruction of the plasma emissions (using the EBITA code). [1] [2] [3]

The system is located in sector A2, at φ = 104.5°. The signals are stored in the TJ-II database with the names 'RXxyy', where 'x' = 1,...,5 (corresponding to the five arrays) and 'yy' = 01,...,16 (corresponding to the 16 channels).


  1. F. Medina et al, X-ray diagnostic systems for the TJ–II flexible heliac, Rev. Sci. Instrum. 70 (1999) 642
  2. F. Medina et al, Filamentary current detection in stellarator plasmas, Rev. Sci. Instrum. 72 (2001) 471
  3. F. Medina, M.A. Ochando, A. Baciero, J. Guasp, Characterization of ripple-trapped suprathermal electron losses by their bremsstrahlung emission in the soft x-ray range at the TJ-II stellarator, Plasma Phys. Control. Fusion 49 (2007) 385