September 2011

Journal

Simulation of a tangential soft x-ray imaging system

By:
Battaglia, Devon J; Unterberg, Ezekial A; Bell, R. E.; Hillis, Donald L; LeBlanc, B; Maingi, Rajesh ; Sabbagh, S. A.; Stratton, B.; Shafer, Morgan W
Journal Name:
Review of Scientific Instruments
Volume:
81
Issue Number:
10
Publication Date:
September 27, 2011
View DOI Listing:
https://doi.org/10.1063/1.3478883

Abstract

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.