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Code Information

We assign an identifier to our equipment in order to simplify its maintenance and manage its movements inside the Institute. We use a code that tells us quickly about the main specifications. For cryostats, here is the way we define the code:

  • the leading two or three digits denote the internal ILL order number. This number is incremented each time a new device is made available.
  • the first and second letters denote the code of the manufacturer as follows:

IL: ILL Cryostat OX: Oxford Instruments TH: Thor AP: Air Products AR: Advanced Research Systems AS: A.S. Scientific Ltd CR: Cryogenic Ltd ED: Edwards SH: Sumitomo Heavy Industries

  • The following letters denote the code of the refrigerant mode for a cryostat and the code of the application:

H: 4He F: with furnace option (T > 320K) N: Nitrogen V: gas flow 3H: 3He CC: closed cycle refrigerator CF: cryofurnace DIL: dilution refrigerator JT: with Joule Thomson third stage BE: beryllium filter GI: low-pressure gas injection GO:goniometer HP: high pressure gas injection HI: heating insert EC: electric current application EF: electric field application ER: electromagnetic radiation application UCN: Ultra-cold neutron application

  • The last digits indicate the maximum sample diameter in mm.

For example, the cryostat 173ILCC250 is the 173rd cryostat introduced at the ILL. It was designed and built by our staff (code IL), uses a cold head (code CC) and provides Ø250 mm access to the sample.