NMR Remote Sensing: Does US Army Detect Buried Weapons?

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SUMMARY

The discussion centers on the feasibility of using Nuclear Magnetic Resonance (NMR) for detecting buried weapons by the US Army. It confirms that while NMR can operate on the ground, it requires a strong magnetic field, typically provided by hospital scanners, to function effectively. Low-field NMR, which utilizes the Earth's magnetic field, is mentioned as a potential method, but it necessitates advanced sensors like SQUIDs or vapor cells and is limited to well-shielded environments. The consensus is that NMR imaging from space is not viable, and ground-penetrating radar remains a more practical alternative.

PREREQUISITES
  • Understanding of Nuclear Magnetic Resonance (NMR) principles
  • Familiarity with low-field NMR technology
  • Knowledge of advanced sensor technologies such as SQUIDs and vapor cells
  • Basic concepts of ground-penetrating radar (GPR)
NEXT STEPS
  • Research low-field NMR applications in military and medical fields
  • Explore the capabilities and limitations of ground-penetrating radar (GPR)
  • Investigate the use of SQUIDs in magnetic field detection
  • Review publications on NMR technology and its practical applications
USEFUL FOR

Military researchers, engineers in sensor technology, and professionals in geophysical exploration will benefit from this discussion, particularly those interested in advanced detection methods for buried objects.

seanscon
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TL;DR
It should be possible to detect RF radiation from NMR of ground targets - but does anyone know of an actual algorithm ??
Hi

I was watching

Generally - you can activate use a strong magnetic field on ground, perturb it, and the pick the signal up with a satellite. The result would be in 60 to 1000 MHz ( VHF Television ) by a satellite.

But the post also says, that US army is using it to detect burried weapons.

Does anyone know how such a thing would provide the magnetic field? Is Earth's magnetic field sufficient

Does anyone know some details? Some algorithms that can actually perform this work?

Any publication would be wonderful as well.
 
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seanscon said:
Summary:: It should be possible to detect RF radiation from NMR of ground targets - but does anyone know of an actual algorithm ??

But the post also says, that US army is using it to detect burried weapons.
Welcome to PF.
Don't believe anything seen on "The Curse of Oak Island". It is not a peer reviewed journal.
The curse is that it will waste your time and your life.

Even though NMR can work on the ground, and satellites can "see" things from high above, NMR imaging requires you put the article in a strong magnetic field like a hospital scanner.

Ground penetrating radar is less limited by ground conditions than is NMR.
There will be no articles about NMR imaging from space. It is a fiction.
 
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Baluncore said:
Even though NMR can work on the ground, and satellites can "see" things from high above, NMR imaging requires you put the article in a strong magnetic field like a hospital scanner.
That is not entirely correct. There is a such as thing as low-field NMR, where the Earth's field is used.
The key idea is -obviously- to just use very good sensors (SQUIDs or more recently vapour cells) for the detection. Much of this research has been funded by the US military since one application is detection of explosives. It could in theory also be used for medical purposes (MRI scanners), although the resolution is not great.
That said, low field NMR only works in a well shielded environment (although you can use active shielding rather than mu-metal) and there is definitely no way to detect the signal from space.
 
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