[3dem] heavy use of clip ring in cryo-holder

[Alexander Shkumatov]

Dear 3DEMmers,

We have a 120kV microscope that is used heavily for screening purposes. Since recently we have about 5-6 active cryo users and 
a clip ring in a cryo holder being broken (not working properly) twice in 3 months. I wonder if this is a normal half-life period for clip rings, say, it’s
expected that it breaks every 2-3 months of heavy usage?

Thank you in advance, 
Alex