Geo Nice.

What angles are you using for the Si-Pin to ?the Target and X-ray tube to the target? ?Do you slide the Sin-Pin in closer when taking the shot. The distance that is shown here is pretty far away. Getting closer to the target will get a higher signal due to the increased flux density from a solid angle

I see you and Charles are using the red protective cap while running. Have you looked at what the attenuation of the low energy peaks are by running with and without the cap on a specimen with Al, Si, P, ?S ?and Cl ? Just shooting soil? in a zip lock plastic bag we can see some changes in the low end.? For mineral ID Al, Si, P and S are important not to miss.

Dud

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