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The devil is in the details! An electron beam incident on a target of high atomic number (such as the metal tungsten) will generate x-rays, but there are a number of technical issues that must be considered in the design of a high-resolution x-ray tube. The x-ray microscope at Aerospace permits direct geometric magnification of specimens by about 100 times while they are viewed in "real-time" on a video monitor. The size of the smallest features discernable depends on a number of factors but can be as little as 4 tenths of a thousandth of an inch (10 micrometers). A very energetic x-ray beam (up to 200,000 volts) allows penetration of relatively thick specimens. The microscope's manipulator stage can accommodate samples weighing up to 66 pounds (30 Kg) and can position specimens in three directions as well as providing rotation about two axes.

The ability to move a specimen so freely while viewing it results in a very complete picture of its internal structure. Real-time x-ray systems add an entirely new dimension beyond the more traditional x-ray inspection methods based on the use of photographic film.

The versatility of the x-ray microscope in aerospace applications has been amply demonstrated by the resolution of problems involving components as diverse as transformers, relays, rocket thruster valves, integrated circuits and fuse modules. Does x-ray microscopy have a potential for applications in law enforcement? Certainly! One specific application has been mentioned on our "secondary ion mass spectrometry page". If you have other problems in mind where x-ray microscopy might be of value please contact us.

Take a look at some x-ray images.

For more information on microfocus radiography contact Dr. Gary Stupian at stupian@law-west.org.