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Originally Posted by J_Player
But I am open to the idea that the "halo effect" is a myth if I can see some credible demonstration that it is in fact a myth. I am also open to the idea that the "halo effect" exists if I can see a demonstration to show that it does.
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This has been discussed before, I think on Eric Foster's PI forum. As I recall, it's been demonstrated that iron can corrode and create a larger effective target, but copper and silver do not. However, wet salt sand can increase detection depths for all metals, possibly through it's conduction of eddy currents which boost the target's own eddy response. This is a guess.
I agree though, it's time for some definitive experiments....
- Carl