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Manufacturing for acceleration grid power supplies has started in India
Manufacturing is underway in India for the acceleration grid power supplies that will be supplied to the SPIDER test bed in Italy as well as to ITER's diagnostic neutral beam.
The technical specifications for both acceleration grid power supplies are similar (system rated for 96 kVDC, 75 A). The SPIDER test bed is designed to finalize the development of the ion sources required for the ITER neutral beam injectors and to test all essential aspects of the diagnostic neutral beam accelerator.
Following the Final Design Review held in August 2013 for the acceleration grid power supplies, a Manufacturing Readiness Review was conducted early this year at the Indian Domestic Agency with the participation of the ITER Organization and ECIL, the Indian manufacturer responsible for the fabrication of the system and its installation at the SPIDER test bed in Padua, Italy.
Major components of the acceleration grid power supplies—60 kW water-cooled switched power supply modules and 2.8 MVA oil-cooled multi-secondary transformers—are presently being inspected at intermediate stages and the factory acceptance test for the first batch is scheduled for the end of November 2014.
Discussions are also being held with local support agencies for SPIDER site works with coordination assistance from the Consorzio RFX team in Padua.
At the Korea Institute of Fusion Energy (KFE), the KSTAR tokamak recommenced operations in December after a major upgrade to replace the…
KSTAR aims for longer plasmas
At the Korea Institute of Fusion Energy (KFE), the KSTAR tokamak recommenced operations in December after a major upgrade to replace the device's carbon divertor with a tungsten divertor.
According to an article on the KFE website, the original carbon divertors could take a thermal load of 5MW/m², whereas the tungsten divertor can take 10MW/m². The upgrade is critical to the goal of sustaining a 100-million-degree plasma for 300 seconds by 2026. Data from the operational campaign will be directly relevant to ITER, which will operate a tungsten divertor under similar plasma conditions in terms of shape and structure.
This testing campaign will continue through February 2024. Read more about the plans in this article in English on the KFE website, or in Korean in the Chosun Biz.