Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • 23rd ITER Council | Pace and performance on track

    Working as an integrated team, the ITER Organization and seven Domestic Agencies are continuing to meet the project's demanding schedule to First Plasma in 2025 [...]

    Read more

  • Huffing and puffing | Testing the endurance of steering mirrors

    On the computer screen, a set of three metal bellows 'breathe' in a steady rhythm. Nuclear engineer Natalia Casal and materials engineer Toshimichi Omori are on [...]

    Read more

  • ITER R&D | News from the Neutral Beam Test Facility

    At Consorzio RFX, where ITER's most powerful external heating system will be tested in advance, activities are progressing well on two distinct test beds. ITE [...]

    Read more

  • Vacuum vessel welding | Rehearsing a grand production

    There is a place near Santander, Spain, where one can actually feel what ITER will be like. Although we've seen dozens of drawings and 3D animations, the encoun [...]

    Read more

  • Image of the week | A plasma-enlightened training course

    The Vacuum Section hosted approximately 40 people last week from the ITER Organization and the Domestic Agencies for a two-day training session on vacuum. [...]

    Read more

Of Interest

See archived entries

Chinese technology will contribute to heating ASDEX-U

Shaohua Dong, ASIPP China

Building the ASDEX Upgrade ICRF antennas was a ''good exercise'' for ASIPP according to IPP's Helmut Fuenfgelder, opening the door for the institute to contribute to other devices such as WEST (France). (Click to view larger version...)
Building the ASDEX Upgrade ICRF antennas was a ''good exercise'' for ASIPP according to IPP's Helmut Fuenfgelder, opening the door for the institute to contribute to other devices such as WEST (France).
At the Chinese Institute of Plasma Physics ASIPP, a second ICRF heating antenna is packed and ready to be delivered to the ASDEX Upgrade Tokamak in Germany after passing the necessary factory acceptance tests late February.

Two new ICRF antennas (for ion cyclotron range of frequencies) designed to couple 2MW at a frequency between 30 and 60 MHz are being built in an international cooperation between the Max Planck Institute of Plasma Physics (IPP, Germany), ASIPP (China) and ENEA (Italy). ENEA is building the plasma-facing components of the antenna and a powerful diagnostic to measure the plasma density in front of it, while ASIPP is building all other components of the antennas.

According to Yang Qingxi, a 35-year-old Responsible Official from ASIPP, the manufacture of the two ICRF antennas was "arduous and tortuous" due to their complicated structure, demanding technical specifications, sophisticated engineering techniques and a tight schedule.

The ASIPP components of the first antenna, delivered to IPP in June, 2013, have already been complemented with some of the diagnostics parts from ENEA and are being test mounted in a full scale model of ASDEX Upgrade.

The components of the second ICRF antenna were examined and accepted by a three-member team from the Max Planck Institute of Plasma Physics (IPP) headed by Helmut Fuenfgelder during a visit at ASIPP from February 25 to 27. Helmut Fuenfgelder expressed his satisfaction with the quality of the second antenna to the ASIPP team led by Song Yuntao. "The first antenna was very good, and this one is even better."

A three-member team from IPP headed by Helmut Fuenfgelder (sixth from right), visited China late February to examine and accept the second antenna. (Click to view larger version...)
A three-member team from IPP headed by Helmut Fuenfgelder (sixth from right), visited China late February to examine and accept the second antenna.
The challenging task was successfully brought to conclusion through strong teamwork within the High Power Microwave Technology and Tokamak Design divisions, the ASIPP workshop and also through a large number of R&D tests on welding techniques and a special curve-shaped surface forming process.

Dozens of video discussions took place throughout the development process with IPP colleagues. The second antenna will arrive at its new home in Garching in a couple of weeks. After completion with ENEA components, both antennas will be installed in the ASDEX Upgrade in the next opening foreseen this year.


return to the latest published articles