Date: Wed, 16 Feb 2011 18:44:57

Author: J. Terrence Klopcic

Subject: Re: Question X-Ray Machine



If the "very old GE X-ray Machine" is like the two that we have (the
units that were later produced by the Diano Corp.) I would be glad to
share our solution with you. The GE machines have some endearing
pedagogical features: they are large and open, making them easy for
students to see and understand. And they can be configured to run with
large samples in either x-ray fluorescence or x-ray diffraction modes.
(We have one of each.) But the age and non-maintainability of the
machines was a real drawback. So, we modernized them. Our machines now
have rack-mounted power supplies (60kV @ 80mA), NIM electronics, and new
stepper motors. The controlling software is written in LabVIEW. This
was presented in a poster session at the Advanced Labs Topical Meeting,
U of Mich, in 2009.

We find that these machines get a lot of use here. In addition to a
number of advanced lab experiments in crystallography and special topics
like absorption edge studies, we do a Moseley's Law experiment in our
Intro Lab. (Good to "expose" our budding MDs to x-rays.)


J. Terrence Klopcic, PhD
Director of Laboratories
Departments of Physics and Mathematics
Kenyon College

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On 2/16/2011 1:20 PM, Doug Johnson wrote:
> Does anyone have an X-ray apparatus they really like for your upper division
> labs? We had the Tel-X-Ometer<> and a
> very old GE X-ray Machine. Is there anything better on the market?
> Thanks in advance for your help! ...Doug J.

From Thu Feb 17 12:25:25 2011