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 Left: ITER PDDG Norbert Holtkamp and ITER India Project Director Shishir Deshpande sign the Cooling Water System PA. Right: Members of the ITER Cooling Water Systems Section. The DNB system will deliver a beam of neutral hydrogen atoms of 100keV energy at 20-22A of beam current into the ITER plasma to be used primarily (through charge exchange spectroscopy) for measurement of helium ash in the tokamak. It will involve extraction of an unprecedented 60A current of accelerated hydrogen ions from a radio frequency-based ion source, before they are neutralized and injected in the magnetized plasma. The beam will also be modulated at a frequency of 5Hz as diagnostic requirement and have a re-ionization loss of less than 6%. All these parameters demand first-of-its-kind, cutting-edge technology and R&D which is already underway.  The Diagnostic Neutral Beam PA is signed in India (left); Pictured at right are members of the ITER Neutral Beam Section including engineering support staff. The signature of these two Procurement Arrangements brings India's total to five. India has now signed for a total value of 123.9 kIUA out of a kitty of 244.21kIUA worth of components to be delivered to ITER. India has crossed the 50% mark of signed Procurement Arrangements for its deliverables to ITER. << return to Newsline #124 |
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