Abstract
A design of the ID soft x-ray imaging system for future experiments at the Mega-Amper Spherical Tokamak (MAST) and results of the numerical simulations based on initial assumptions about the state of the tokamak plasma as well as the parameters and geometry of the detection system are presented. The imaging system consists of a set of arrays of detectors, pinholes and filters attached to each set, together with suitable readout electronics. In simulations, an array of semiconductor detectors is compared with an array of scintillator-photomultiplier combination. The measuring system is assumed to operate in the range 1–10 keV. In addition to the 1-D imaging of x-ray emission, the system gives the possibility to measure the energy slope of x-ray spectrum and thus the electron temperature of plasma.An extended numerical code simulates the imaging system for various parameters of plasma (spatial profiles of the plasma density and temperature) generated at the tokamak and for different configurations of the de...
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