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New Tool For The Cache Hunter


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I scanned the brochure and it looks to be an X-Ray imager only -- that is, no spectroscopy to identify elemental composition.

 

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The hard part of this particular item seems be locating the price.   Its seems to be a closely guarded secret.   I'm hesitant to make contact as I'm not particularly wanting all the email spam and phone calls that will become a part of my everyday life from making contact with the company.  

One of the key attributes of the Whites V3 is its ability to search walls and floors and identify whats behind them.  All the normal metal in the wall or a floor has a V3 spectra-graph signature.   You can easily map a wall or a floor, or a ceiling for that matter, and locate any metallic anomalies.   However you can't actually see the object.   But this can actually show you, and not only show metallic items but non-metallic items as well.   This is a huge jump forward for those treasure hunters who are into structures if they could swing the price.

I'm not sure how well it might do in looking at dirt.  I'd imagine well enough to search the top two to five inches of grass root depth, maybe.  

HH
Mike

 

 

 

 

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So we put it on a little plastic sled to pull around the park. Aim a small wireless camera at the screen to send to cell phone. But something tells me it costs more than my Time Ranger Pro! 

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1 hour ago, Mike Hillis said:

I'm not sure how well it might do in looking at dirt.

I misunderstood your original excitement.  I see now you really do want an imager.  Here's quick-and-dirty Back-of-the-Envelope (BoE) approximation.  The brochure (your link) has a table for the penetration depth in various materials which I reproduce here:

917806668_Screenshotat2020-06-18155844.thumb.png.716abf7dd6e2c55a32c0f0c8516baa84.png

Fortunately (according to a Google search) the specific gravity of dirt is around 2.65, which is quite close to pure aluminum at 2.7 with its common alloys typically 2.8 --> 3.0.  Another nice thing is that with the energies of the X-rays in this device, materials made up of low atomic number elements, which Aluminum, Oxygen, and Silicon all qualify, as do plant matter constituents that might be in the dirt, other attenuation processes that depend upon more than just density aren't relevant.  What I'm saying is that density alone is the dominant component of penetration depth.

Unfortunately the table says only about half an inch penetration through aluminum so unless the soil is considerably less dense (in which case you can possibly find another match in the table) I don't think you can peer much deeper into the ground than 0.5 to 1 inch.

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We are just dreaming anyway, though peat based loam is considerably less dense than normal soils. Another related subject is normal fishfinders and advanced acoustic devices. They can penetrate bottom sediments for some distance and could possibly see small gold items at shallow depth in beach sand. Gold being denser would present better than aluminum to such a device. https://personalpages.manchester.ac.uk/staff/neil.mitchell/sonar/pen.html

https://acwi.gov/sos/pubs/2ndJFIC/Contents/P03_Snellings_12_21_09_abstract-for-papers.pdf

http://www.meridata.fi/Meridata_High_Definition_Sub-bottom_Profiler.pdf

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