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Video

Magnetic field tests help prepare for operation

2 Dec 2024

Components installed in the ITER Tokamak Complex will be exposed to magnetic fields to varying degrees. To test the resistance of these components before operation, and to avoid the risk of dysfunction, samples are being subjected to maximum expected field levels in a test facility on site.

Teams are currently testing a fast-action valve that will be a key component of ITER's disruption mitigation system.

How will the electronics planned for ITER react to magnetic fields? That is the question the Static Magnetic Field Test Facility has been installed to answer. With a maximum field of 275 mT and a test volume of one cubic metre, the facility is currently testing circuit breakers, electronic cards, valves and other components that will be installed near enough to the machine to experience some level of exposure.

The electronics closest to the machine, located in the port cells, will be exposed to a field of approximately 200 milliTesla (mT), while instrumentation and control (I&C) cubicles and electrical distribution boards located in the Tokamak Building will face from 2.5 mT to 20 mT. 

In a video filmed recently onsite, project leader Massimiliano Camuri shows off the facility and emphasizes the importance of the tests underway. "It is the only opportunity that we have to test in real conditions the equipment that later on will be installed in the tokamak."

Watch the 3-minute video here.

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