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The Indian Test Facility (INTF) for Neutral Beams is designed with the objective to not only test the performance of an ion source but also to characterize the transmission of the Neutral Beam to a length of 20.66 m and thereby generate adequate database on the quality of the beam that is required for the CXRS diagnostics for measurement of Helium ash content in the fusion plasma.
Following the allocation of procurement of the DNB to the Indian DA, a series of tasks have been undertaken to first assess the DNB configuration and arrive at an optimal beam line configuration folding in the requirements of gas feed and vacuum pumping requirements. Specific emphasis is placed on the thermal, structural and electrical design of beam line components, in order to ensure their compatibility...
The 100 kV negative hydrogen ion source based Diagnostic Neutral Beam (DNB) injector, which forms a part of the IN Procurement Package for ITER, targets a delivery of ~18-20A of neutral hydrogen atom beam current into the ITER torus for charge exchange resonance spectroscopy (CXRS) diagnostics. Considering stripping losses, ~70A negative ion current is required to be extracted from the ion source,...
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