Thermal insulation in quantum computers

[matteolegna]

Hello!
I was watching a video () about how extreme low temperatures are achieved in a D-Wave computer. As they explain, they have this series of cooling stages, each of which providing a temperature drop over the previous. I was wondering however, how could they avoid thermal propagation through the metal structure that holds the whole thing together? I mean those rods that physically connect all the stages and ultimately the computing core.
Thanks for you patient replies! :)

 

[TheQuietOne]

Considering that the structure connects to the core, the it may also affect the metal structure so that it does not affect the stages. (The core may cool down the structure). Just guessing.

 

[TheQuietOne]

woops!