Hi Koichi Sakagami,
We don’t have any evaluation done at such low pressure environment.
But, according to our chief engineer, since the g-cell is hermetically sealed at the bond pressure it is not affected by the ambient pressure changes. So, operating at a lower pressure should not affect the pressure in the g-cell and therefore will not affect the performance.
Have a great day,
Jose
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------