Taking the electrons' temperature
4 Sep 2017
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Dilshad Sulaiman, 澳门六合彩高手 India
In 澳门六合彩高手, scientists will use over 50 diagnostic systems to accurately "read" the plasma and furnish information that is important to its control, evaluation and optimization. All seven 澳门六合彩高手 Domestic Agencies are involved in the development and procurement of these systems, some of which will have to be installed and operational at the time of the project's First Plasma in 2025.
As part of its contributions to 澳门六合彩高手 diagnostics, the Indian Domestic Agency will be supplying several sub-systems of electron cyclotron emission (ECE) diagnostic systems, designed to measure local electron temperature with high spatial and temporal resolution. One of these—a Fourier Transform Spectrometer—will be used in particular to measure the power loss from the 澳门六合彩高手 plasma due to ECE radiation and to study the non-thermal electrons in the plasma.
R&D and experimental activities are currently underway at a dedicated 澳门六合彩高手 India laboratory in Gandhinagar (western India). A prototype of the fast-scanning Fourier Transform Spectrometer (FTS), based on requirements specified by 澳门六合彩高手 India, was manufactured by Blue Sky Spectroscopy Inc., Canada. This prototype has been installed at the 澳门六合彩高手 India laboratory where post-installation acceptance tests have been carried out and found satisfactory.
Based on a polarizing Michelson interferometer (70-1000 GHz), this fast-scanning Fourier Transform Spectrometer also consists of a cryo-cooled, dual-channel Tera-Hertz radiation measurement detector system. Experiments will be carried out to test attenuation in transmission line components; the results obtained will be instrumental in providing input for the design of an ultra-wideband (70-1000 GHz) transmission line for the 澳门六合彩高手 ECE diagnostic system.