[sudo-discuss] [CCL] Re: SEM microscope
Jake
jake at spaz.org
Wed Dec 24 19:52:57 PST 2014
On Wed Dec 24 Benjamin Rupert wrote:
> Besides Cindy's concerns, we will also need a supply of liquid nitrogen.
> The detectors are liquid nitrogen cooled and need to be replenished
> daily on most instruments.
this only applies to an SEM using a Hyper Pure Germanium (HPGe) detector
such as we would be using for EDS. Regular SEMs use a photomultiplier
tube which does not use liquid nitrogen at all.
If we are lucky enough to get an SEM with a HPGe detector (or if we fit
one on there like the one I got from Urban Ore) we can plan ahead for
"science days" when we have our samples ready to analyze, and we can bring
in a quart of liquid nitrogen to last the day while we play with the
machine.
It's not a big deal. The only issue that's stopping me is the distance.
-jake
More information about the sudo-discuss
mailing list