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Building the Wendelstein 7-X reactor

Pictures
The Wendelstein 7-X consists of 50 stellarator magnet coils, one of which is seen here. The design of the coils help scientists fine-tune the magnetic field in the reactor to see how the plasma behaves. Image courtesy of the Max-Planck-Institute for Particle Physics
The shape of the magnetic field coils and the reactor itself is the result of around 20 years of research, claims Prof. Thomas Klinger who led the project. Image courtesy of the Max-Planck-Institute for Particle Physics and Wolfgang Filser
Each of the five modules of the reactor contains the plasma vessel, magnet coil, outer casing, and several ducts for cooling and power among other features. Image courtesy of the Max-Planck-Institute for Particle Physics
The outer casing of the reactor was completed in May 2013. Image courtesy of the Max-Planck-Institute for Particle Physics
In December 2015, one milligram of helium was heated to one million degrees Celsius to create the first plasma in the Wendelstein 7-X reactor. Image courtesy of the Max-Planck-Institute for Particle Physics