[time-nuts] hydrogen rich environment and oscillators

[Lux, Jim]

 Â Â  OK, here's an interesting one for you all:

Does anyone have any information on what happens to hermetic TCXOs when 
they're in a hydrogen rich atmosphere? There's stories about MRI machine 
He rich environments killing Apple watches - I think, though, that was a 
MEMS oscillator. The data shows a reduction in Q because the resonator's 
not in a vacuum.  And I'm aware of pressure sensors failing because they 
rely on a vacuum for comparison. But I wouldn't necessarily think this 
is the case with a quartz crystal.  Or is it?  H2 is somewhat more 
reactive than He, too.