I NMR Remote Sensing: Does US Army Detect Buried Weapons?

AI Thread Summary
The discussion centers on the feasibility of using Nuclear Magnetic Resonance (NMR) for detecting buried weapons by the US Army. While NMR can theoretically work on the ground, it requires a strong magnetic field, which is not achievable from space, making satellite detection impractical. Low-field NMR, which utilizes the Earth's magnetic field, is mentioned as a potential method, but it necessitates advanced sensors and a well-shielded environment. Ground-penetrating radar is highlighted as a more effective alternative for detecting underground objects. Overall, while there are advancements in NMR technology, the application for remote sensing from satellites remains fictional.
seanscon
Messages
1
Reaction score
0
TL;DR Summary
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.
 
Physics news on Phys.org
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.
 
  • Like
Likes berkeman and sophiecentaur
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.
 
Last edited:
I think it's easist first to watch a short vidio clip I find these videos very relaxing to watch .. I got to thinking is this being done in the most efficient way? The sand has to be suspended in the water to move it to the outlet ... The faster the water , the more turbulance and the sand stays suspended, so it seems to me the rule of thumb is the hose be aimed towards the outlet at all times .. Many times the workers hit the sand directly which will greatly reduce the water...
I don't need cloth simulation. I need to simulate clothing meshes. Made of triangles and I need an answer that someone with High School math can understand. I am actually using the time it takes for someone to answer to create a model with less geometry than the one I have been using. I want clothing that can be removed on a model that will be animated. I don't need stretching or wrinkles on my meshes, I just need gravity. I have an idea of how I could do it, but I don't know how to apply...

Similar threads

Back
Top