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Moderator: Ellery Frahm, [log in to unmask],
Electron Microprobe Lab, University of Minnesota
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Here Carl Henderson maintains two 25-28 year old Cameca Camebax
machines without service contracts. They both have EDS and BSE and
one of them has 4 spectrometers. Carl added better spectrometer
crystals, modified them to run on Macs, and modified the output
considerably. I think that the stage and spectrometer stability of
those systems made a big difference in the reliability of those
machines. I takes a gifted operator to keep such old systems
We are still finding out about problems on the SX-100 and
improving its performance over time. We have maintained a service
contract on our SX-100.
On May 19, 2009, at 8:26 PM, Ellery Frahm wrote:
> JEOL Probe Users Listserver
> Moderator: Ellery Frahm, [log in to unmask],
> Electron Microprobe Lab, University of Minnesota
> Post a message: send your message to [log in to unmask]
> Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask]
> On-line help and FAQ: http://probelab.geo.umn.edu/listserver.html
> On May 19, 2009, at 6:43 PM, Eric Essene wrote:
>> I think it is crazy to have an EMP without EDS. Does it have BSE?
> Perhaps, but EDS is at least straightforward enough to add as a
> standalone system. And at least the microprobe will work without
> EDS -- if you have the time, a WDS scan will do the same job than
> EDS will. Also, if users have done their optical mineralogy first,
> the need for EDS is decreased.
> General maintenance and repairs are much bigger issues. Can you get
> a service contract? If not, do you have the resources (money or
> time and materials) to replace, say, a stage encoder that goes bad?
> Or something as simple as a spectrometer belt, which only last 5 or
> 10 years? Without a service contract, you've a much bigger
> challenge ahead of you to care for a 30-year-old instrument. Think
> about how much money an old car costs for upkeep.
> Ellery Frahm
> Manager & Principal Analyst, Electron Microprobe Lab
> Senior Research Fellow, Department of Geology & Geophysics
> University of Minnesota - Twin Cities