May 2012


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JEOL-Focused Probe Users List <[log in to unmask]>
Julien Allaz <[log in to unmask]>
Mon, 7 May 2012 09:56:17 -0600
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Julien Allaz <[log in to unmask]>
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Dear probe users,

Since a month, I have started a research associate position at CU 
Boulder, and I am now in charge of a JEOL-8600. I am positive in hoping 
some of you had used in the past couple years the Geller microanalytical 
system (dQuant and dPict) and could help me.

We are facing a major computer issue, and we believe one of our computer 
board is nearly dead (motherboard and/or some of the communication 
boards installed by Geller to communicate with our JEOL). The computer 
is freezing regularly every couple minutes or, if we are lucky, every 
couple hours "only". We have already changed the power supply, changed 
the memory (RAM), changed the hard drive, and freshly re-install all the 
software / drivers... No change. We are now considering changing the 
computer, and in the mean time getting the new version of dQuant / dPict 
software from Geller.

My questions are...

a) Did any of you recently upgrade / install the version 7 of dQuant? We 
are at version 3.41 and we wonder if this is really worse spending ca. 
$20K for this upgrade: $10K for new boards, $2K for a new computer 
(including installation), $5K for the software, and ca. $2K for a new 

b) Does any of you know how we can (and IF we can) do peak overlap 
correction within the Geller software? If so, do we need the newest 
software version for this?

c) Does anyone had tried to upgrade to J. Donovan system (Probe for 
EPMA)? To work with the JEOL-8600, we need either a TN-5600 PAC system 
(cheap upgrade) or a hardware upgrade from Advance Microbeam. Some 
colleague already recommended me the Advance Microbeam upgrade, but this 
one is pretty expensive (and we are already thinking about applying for 
an MRI for a new probe). Any thought on that?

Thank you for your consideration,


Dr. Julien Allaz
Research Associate
Electron microprobe responsible
University of Colorado Boulder
Geological Sciences
UCB 399
2200 Colorado Ave.
Boulder, CO 80309-0399

Have a look at my Home Page!