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  • Image of the Week | Hard work deserves an outdoor buffet

    A start-of-summer event was held on Friday 21 June for the ITER community—an occasion to celebrate the everyday commitment of staff and contractors alike, acros [...]

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  • Poloidal field coils | Reflecting on a unique industrial achievement

    They had worked together for 10 years. And on Thursday 20 June, they gathered one last time to reflect on what they had accomplished. Director-General Pietro Ba [...]

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  • 34th ITER Council | Updated baseline presented

    Nearly 100 people met for two days last week for the 34th Meeting of the ITER Council. The meeting was an important one, as the ITER Organization and the D [...]

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  • Cryopumps | First unit reaches ITER

    The ITER vacuum team, the European Domestic Agency Fusion for Energy, Research Instruments (RI), and the ITER Director-General were all excited to welcome the d [...]

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  • Tritium Plant Summit | A shared vision to prepare for delivery

    A summit organized at ITER Headquarters from 3 to 6 June brought together the international teams that will deliver the sub-systems of the ITER Tritium Plant. I [...]

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Of Interest

See archived entries

Gyrotrons

Russia completes four

Gyrotrons (from the Greek "gyro" (circle) and "tron" (abstracted from electron) are the energy-generating devices of the electron cyclotron resonance heating system. Russia will supply eight of these devices in total, or one-third of the total installed capacity on the ITER machine. Late May, the fourth device in the series successfully passed factory acceptance testing.

Representatives of ITER Russia and the ITER Organization attended remotely, as the team from GYCOM Ltd. put the fourth gyrotron through its paces. (Click to view larger version...)
Representatives of ITER Russia and the ITER Organization attended remotely, as the team from GYCOM Ltd. put the fourth gyrotron through its paces.


Russia is supplying 8 of the electron cyclotron system's 24 gyrotrons, including 4 for First Plasma. All four have now passed factory acceptance testing and are ready for shipment. (Click to view larger version...)
Russia is supplying 8 of the electron cyclotron system's 24 gyrotrons, including 4 for First Plasma. All four have now passed factory acceptance testing and are ready for shipment.
From 25 May to 2 June, factory acceptance testing performed at GYCOM Ltd. (Nizhny Novgorod) demonstrated that, as with the first three in the series, the fourth gyrotron manufactured in Russia fully complies with the specifications of the ITER Organization. The tests—which were held in advance of the original calendar—were attended remotely by representatives of ITER Russia and the ITER Organization.

ITER will rely on electron cyclotron resonance heating to initiate each plasma shot, contribute 20 MW of heating power to the plasma, and suppress certain types of plasma instabilities. The demanding power and frequency requirements for the system (1 MW at 170 GHz for 1000 seconds) led to an ambitious, multi-decade development program in which Russia (through the Institute of Applied Physics and GYCOM Ltd), Japan, Europe and the United States—all contributing parties to the ITER electron cyclotron system—were closely involved. Since the signature of Procurement Arrangements with the ITER Organization, the gyrotron programs have gone through lengthy prototyping, review and test phases.

Eight gyrotron units need to be installed for ITER's First Plasma—four from Russia and four from Japan. (Sixteen other units will be installed after First Plasma.) Delivery of the first gyrotron pair from Russia is scheduled for mid-2021.



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