Hi Mike,
I can't speak of typical, as I am still trying to get my SEM
out of its warehouse crypt. I can say that it has no enhanced
beam voltage, so about 30 to 35KV typical of such an instrument.
There is an excellent book:
"Scanning Electron Microscopy and X-Ray Microanalysis", Third
Edition, Goldstein, etal ISBN: 978-0-306-47292-3
It explains everything, and more.
-Chuck Harris
Mike Vande Voort wrote:
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How many KV is the typical X Ray ?
On Thu, Sep 10, 2020, 8:35 AM Chuck Harris <cfharris@...
<mailto:cfharris@...>> wrote:
My JEOL JSM-6100 Uses an oil-less pump as its roughing pump, which
keeps the room from getting hazy.? It has a water cooled oil diffusion
pump under the column, and a little varian ion pump for the electron
gun.? It has pneumatically operated valves in the column that close
when the chamber's vacuum is too low quality.? This is to prevent the
filament from taking a hit, and to speed up the pump down time after
a sample change.
In addition, I have an X-Ray detector that is used to do spectral
analysis on samples by lighting up a spot on the sample with the beam,
at different energy levels, and measuring the X-Ray spectrum of the
resulting Bremsstrahlung radiation.
The X-Ray detector has its own LN2 dewar, which can keep the detector
cold for a couple of weeks between fillings.? It also has its own
dedicated VME system that drives the SEM, and processes the X-Ray
data...
If I can ever get my SEM out of the warehouse it is stored in, that
is.
-Chuck Harris
