Book 1 - Hola MaHigh-School - June 2022

metres, Once assembled, the whole
structure will be 11.3 metres high.
The primary function of the vacuum
vessel is to provide a hermetically
sealed plasma container. Its main
components are the main vessel, the
port structures and the supporting
system.
The vacuum vessel has a total of 44 openings that are known as ports –
18 upper, 17 equatorial, and 9 lower ports – that will be used for remote
handling operations, diagnostic systems, neutral beam injections and
vacuum pumping.
Vacuum pumping will be done before the start of fusion reactions to
create the necessary low density environment, which is about one million
times lower than the density of air.
The magnet system used in the ITER tokamak will be the largest superconducting
magnet system ever built.
The ITER cryostat is a large
3,850-tonne stainless steel structure
surrounding the vacuum vessel and
the superconducting magnets, with
the purpose of providing a super-cool
vacuum environment.
In essence: we pour in a lot of energy and we harvest even more. ITER
will prove that it is economical.
And let it be said: Earth is running out of energy. This might be the only
option available to us.