A tomography diagnostic in the visible spectrum to investigate turbulence and coherent modes in the linear plasma column Mistral
Abstract
In this paper we describe a newly installed tomography diagnostic on the linear magnetized plasma device Mistral. The diagnostic is composed of 128 lines of sight covering a 20 cm diameter section, and an acquisition rate up to 1 MHz. The measurements are done in the visible spectrum using silicon photomultiplier arrays that require lower amplification voltage than photomultiplier tubes for similar gains, and have a fast response. Tomographic reconstruction of a rotating plasma mode is shown to illustrate the capabilities of the diagnostic.
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