Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Fusion world | Innovative approaches and how ITER can help

    More than 30 private fusion companies from around the world attended ITER's inaugural Private Sector Fusion Workshop in May 2024. Four of them participated in a [...]

    Read more

  • Robert Aymar (1936-2024) | A vision turned into reality

    Robert Aymar, who played a key role in the development of fusion research in France and worldwide, and who headed the ITER project for 10 years (1993-2003) befo [...]

    Read more

  • The ITER community | United in a common goal

    Gathered on the ITER platform for a group photo (the first one since 2019, in pre-Covid times) the crowd looks impressive. Although several hundred strong, it r [...]

    Read more

  • Vacuum vessel | Europe completes first of five sectors

    The ITER assembly teams are gearing up to receive a 440-tonne machine component shipped from Italy—sector #5, the first of five vacuum vessel sectors expected f [...]

    Read more

  • SOFT 2024 | Dublin conference highlights progress and outstanding challenges

    Nestled in the residential suburb of Glasnevin, Dublin City University is a fairly young academic institution. When it opened its doors in 1980 it had just 200 [...]

    Read more

Of Interest

See archived entries

ITER NEWSLINE -

Manufacturing

Diamond windows in production in Europe

Synthetic diamond windows will play a double function in the ITER machine—allowing the microwaves of the electron cyclotron heating system to pass through to reach the plasma while providing an effective leak-proof vacuum barrier. A contractor to the European Domestic Agency has started production.

Only the best for ITER: high-purity CVD (chemical vapour deposition) diamond windows offer unsurpassed hardness, broad band optical transparency, and extremely high thermal conductivity. © Diamond Materials (Click to view larger version...)
Only the best for ITER: high-purity CVD (chemical vapour deposition) diamond windows offer unsurpassed hardness, broad band optical transparency, and extremely high thermal conductivity. © Diamond Materials
Offering unsurpassed hardness, broad band optical transparency, and extremely high thermal conductivity, synthetic diamonds are the material of choice for 60 small windows that offer access to the machine for the high-frequency electromagnetic waves of ITER's electron cyclotron heating system, yet ensure a tight vacuum boundary.

The European Domestic Agency Fusion for Energy is working with a German contrator, Diamond Materials, for the production of sixty 1.1 mm thick discs with a diameter of 7 cm. Each one requires approximately six months to complete, including tests. The company is currently working at a rate of 7 to 10 discs every four months.

First the sythetic diamonds are "baked" in one of the company's 40 furnaces, a process that requires two months. Then the diamond is separated from its substrate, shaped to ITER specifications, and polished before its quality gets confirmed through optical testing.

See the full article on the Fusion for Energy website.

 

return to the latest published articles