Simulation of a tangential soft x-ray imaging system

Battaglia, D. J.; Shafer, M. W.; Unterberg, E. A.; Bell, R. E.; Hillis, D. L.; LeBlanc, B. P.; Maingi, R.; Sabbagh, S.; Stratton, B. C.
October 2010
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10E533
Academic Journal
Tangentially viewing soft x-ray (SXR) cameras are capable of detecting nonaxisymmetric plasma structures in magnetically confined plasmas. They are particularly useful for studying stationary perturbations or phenomenon that occur on a timescale faster than the plasma rotation period. Tangential SXR camera diagnostics are planned for the DIII-D and NSTX tokamaks to elucidate the static edge magnetic structure during the application of 3D perturbations. To support the design of the proposed diagnostics, a synthetic diagnostic model was developed using the CHIANTI database to estimate the SXR emission. The model is shown to be in good agreement with the measurements from an existing tangential SXR camera diagnostic on NSTX.


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