TF Fuel Diffusion

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Measuring Diffuion

Electron Probe Microanalyzer: Measured the X-rays backscattered from a sample as a function of the incident electron's location on the sample. The X-rays are analyzed using a crystal to disperse them forming an interference patter (Wavelength Dispersive Spectroscopy).

The device can handle materials with Activities up to 3 Ci ( Cobalt)

The device has a spacial resolution of 1$\mu$m^3

The detection limit is 100s of PPM

One example scanned a sample having a length of 6 mm

One sample show that the diffusion distance was between 5 and 20 $\mu$m depending on the Isotope

Try to find a talk at the 2017 ANS conference by Bremier.