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x-ray calibrations

On the subject of calibrating survey equipment for analytical x-ray

>  could you specify what type of analytical equipment, such an electron 
> microscope? 

Unfortunately, both electron microscopes and x-ray diffraction units.  
Double-unfortunately, as we are a research university, current/voltage/target
material in the XRDs is quite varied.  Triple-unfortunately, I also have
amusing things such as accelerators, experimental fusion devices and the
like to survey around. :-)  However, for the purposes of the question of
calibration appropriateness, let's say the equipment consists of EMs and
XRDs.  The XRDs are for the most part in interlocked, shielded enclosures.

 Melissa Woo, Health Physicist                       | m-woo@uiuc.edu
 University of Illinois at Urbana-Champaign          | office
 DEHS, MC-225, 101 S. Gregory St., Urbana, IL  61801 | fax
 http://www.uiuc.edu/ph/www/m-woo                    |