Handheld Scanner has unique use(s)

[Bob]

PAIN Analysis

MR technique is the first line analysis tool to help in localizing what is the source of nerve pain:

Conventional CAT (CT) scans, conventional and CT assisted Myelogram (nerve study) are no longer performed.

Analysis for infection of nerves (i.e. spinal cord), or compression or injury (bruising), or twisting, and/or inflammation.

Virtually everyone over 40 can have disc plate damage or degeneration allowing for manipulation of the spinal cord to happen.

A lesion can occur creating pain, immobility, tingling, different levels of sluggishness or paralysis.

A cyst could occur, which could be organic, or temporary, such as an allergy reaction, creating localized fluid build-up.

Possibly a tumor growth could be happening..

The Magnetic Resonant imaging technique is capable of localizing the above situation, allowing for determination of where the pain is coming from, and hopefully shed some light on how to create an effective treatment for the observed issue.

[Bob]

In Posts 19 an 20 above, one configuration of the "front end" in which the target area is to be "probed" is shown. (19 is showing a sample bottle on top of the probing system).

For a schematical block diagram, showing the key functional points here below:

What we see is a "sample" region (the target), where there are two coils, one being a transmit source, the other being a receive pickup.

The magnet field "aligns the protons" and the RF pulse from the transmit source tickles the protons to raise their rest state level.. When the pulse completes the spin-down happens, and the characteristic spectrum from the molecule containing the hydrogen presents itself to the receive pickup.

The analyzer then processes that received pickup data, and displays it simply (as shown), or further processes it to create a spatial relationship, so that "location" of the emission source can be determined (and strength)..

[Bob]

Let's look at WHY would describing a simple hand held MR scanner would evoke attempts to prevent discussion?

Hand held sensory extension, with analysis of anything being pointed at, provides an insight into where one's senses cannot reliably go.

What possibly subjects would not want to be observed? (by some perp/terrorist)

• Ability to monitor for contraband being shipped by airline passengers
• Ability to locate chemical explosives
• Ability to see if a person is carrying a bomb within them

The first three above look at determining when something is not what it seems to be. Lets say a "boom box" housing has been re-moulded using a "plastic" which is really HMX or RDX (military high explosive plastics). No normal "airport" scanner would be able to detect such an explosive exists in a simple normal "boom box".. Batteries shorted out, can explode, and set-off the high explosive, and the "boom box" literally would be a deadly device. A hand-held MR scanner would easily and rapidly and SAFELY detect such, and provide for the saving of lives? WHY would someone want to suppress such an ability to develop and use such a scanner to save lives? WHO would want to do that?

Another use of a hand held MR Scanning system would be in the determination and detection of substances hidden in common packaging..

OSS was responsible, one is told, for researching during WW2, the use of hidden explosives masquerading in conventional innocuous packaging.

(Source) and (Source)

Recall, this thread and post is about understanding the USES of the hand-held scanner having unique uses ( I usually build up a thread so that the background is understood, so that mis-understood words are cleared, and in this case a technological subject is supported adequately) - this post is about how the MR hand held scanner can be used to find dangerous hidden substances...

In the source reference, OSS was one of the developers of the FLOUR PLUS HMX (High explosive) combination, which allowed the explosive to be able to be baked into cakes, breads, cookies and any other flour related product. The substance is said to be non-toxic, able to be eaten.. BUT when detonated by a fast shockwave trigger, a massive explosion results.

In China during WWII, 15 tons of the "Aunt Jemima" HMX mixture was used. None was ever "discovered" by the Japanese.

A MR hand held scanner is something that would rapidly and safely and non invasively show if such substances are present in any innocous "baked goods"..

[Bob]

Is there such a thing as a "passive" hand-held scanner?

Let's define passive verses "active"- with the active MR (Magneto-Resonance) scanner device described in the OP #1, there is a magnetic field present in the background to create an alignment of the protons in the molecules desired to be looked at. Radio frequency energy is swept through the sample and the resonances (spots where the field responds with lesser resistance, and greater output, creating peaks of signals).. A spectrum is therefore able to be determined.

A passive hand held scanner could take the form of a "vector" spectrum (signal) analyzer:

from: https://en.wikipedia.org/wiki/Vector_signal_analyzer - "A vector signal analyzer is an instrument that measures the magnitude and phase of the input signal.."

How does the "passive" system differ from an active system? Well it is a matter of perspective.. If the L.O. (The local oscillator), is actually able to couple to the "target", and one realizes that the scanner head has a set of super neodymium rare earth magnets placed in the detector head, what one has then is really an ACTIVE Magneto-Resonance scanner.. and NOT a passive scanner as some people have been lead to believe..

So a Passive system really does NOT exist in real life.. Because the local oscillator always couples to the target in some way. And because of the magnetic fields present the system technically IS an active MR (Magneto Resonant) scanning system of electromagnetic radio spectrum.

Who makes a vector spectrum analyzer?

Well this manufacturer has been the gold standard for many years - Hewlet Packard. Later they sold out to Agilent, and they later split off the spectrum analysis division to KeySight.

This is what the equipment looks like which has repeatable reliable spectral monitoring ability.

Keysight (formerly Agilent) model E8267D...
$72,000.00 (USED)

New pricing is typically 100K$ (US).

On to such designs would be placed the portable scanning head or the robot arm to do repeated mechanically reliable "scanning".

Cost of the robot system about 450K$.

Cost of the radio shielded room, about 300K$. (The blue pyramid shaped blocks absorb RF fields - as shown in the above image).

Total cost of a handheld vector (passive) signal analyzer system, with a bandwidth range of 1 gigahertz through about 60 gigahertz (with appropriate mixers), about $850,000 (US).

Why is a shielded room needed?

Because of Radio Interference from multiple sources - such as fluorescent lights, automobile lane change and collision avoidance radar, airplane radar, cellphones, internet network wireless routers/computers, airport radar, satellite microwave.

The short synopsis realized back in 1990 when I looked at wideband passive rf spectrum analyzers which could scan a set of radio frequencies is that, hand-held microwave systems are:
1) totally impractical, and unreliable to operate without an anechoic chamber (wideband radio shielded room), as the analyzer would pick up ALL the interference sources.
2) stability, none - impractical to have any passive microwave hand held spectral analyzer system reliably and repeatedly produce the same readings due to movement and distance changes.
3) no data-base, meaning spectrums being analyzed need to be determined as to what they mean. Without an anechoic chamber for perfect shielding, a robot arm for precision placement, to create a reliable database is impossible

Very ludicrous hear-say 'legends' appeared over the years trying to be attributed to me, when I studied the microwave vector spectral analyzer. The three items above is why I abandoned studies on such back in 1991. It is impossible to build and or use "brain" analysers with microwave passive vector spectral analysers.

The OP post talks about the ONLY stable reliable "ME" (Molecular emission), type of MR (Magneto Resonant) hand held scanner that has ANY hope of being developed into practical use.. as described by the OP #1, the use on CATTLE for instance to check muscle/water/fat mass is a good use. To be able to adapt such a system to look for Muscle wasting diseases, as in Muscular Dystrophy studies is a VERY good use for the hand held MR scanner.

To be able to for specific limited uses, to replace the massive MRI system which still requires a SHIELDED ROOM, and massive power systems, and cooling systems is possible with the HAND HELD MR scanner system.

Microwave systems are impossible to deal with, and as said, abandoned in 1991. Those people who have stalked me for instance since that time, posted disparaging misleading internet pages, have wasted their time and have not listened when they were told in the early 90's and every time thereafter, such microwave passive systems DO NOT EXIST at this time. Stopping the stalking and harassing with the webpages/blogs and identify theft is the high road.

The experimental study items were taken apart, destroyed.

At one point, there was a brief study to specifically a test a potential configuration using a contained MAGNETIC field from a set of supermagnets (rare earth magnets) and a vector spectrum signal analyzer head. To develop such a system into something practical would cost about 500K$ per system to try the next possible logical "theory". In other words, a larger higher powered portable MR (Magneto Resonant) system was looked at. Reason? The Airforce wanted to know, could underground unexploded ordance from the 1940's and 1950's be located, in the field, reliably. MR systems looked like the logical method to try, however as pointed out, at 500K$ per system to explore, the costing to do such was impossible for a hobbiest to come up with.

[Carmody]

So..the combination of noise, capacity for reflections to combine and be altered, and this being aided via the very short wavelength, this creates a very impractical handheld or 'open' aspect to potential utilization. FFT spread spectrum is probably useless as well, due to the above concerns.

A short imprecise answer, to say I 'get' where you are coming from.

Wavelength issues (all associated issues, which are complex and multi-faceted) create an environment where specific and custom designed application is very nearly the only acceptable solution.

[Bob]

Precisely Carmody - passive (impossible) microwave spectral analysis to look at a target can't work reliably.. As a study to see IF a theoretical microwave vector spectrum analysis could potentially be obtained was interesting.. What is pointed out though is the unsolvable "portable" issues.. A small RF microwave pickup head, as shown in the pix of the robot (above) would allow for precision of placement, and of course repeatability, but what happens when the overall characteristics of the room itself changes? Or the target changes (position slightly)? Each change of characteristic then makes precise analysis impossible, and with microwave, due to the very short distances between the peaks and valleys of the wavelength, a slight movement causes a massive change of data.

A different spectrum appears when anything changes, and for diagnostic purposes, a radical change is impossible to deal with. It can't be said any simpler.. And the perfect reason to abandon that line of study.. I moved on.

Going LOWER in frequency to the 2-60 megahertz pickup range (as shown in post #22) makes sense due to the longer wavelengths, the lack of precision of placement is no longer needed (and the interference from higher frequency microwave) is then solved. The microwave systems are impossible to work with, and as pointed out, I abandoned (looked at such briefly in the 1990 period..) Interesting though that the stalkers persisted and listened to disparagement lies and spin created over the years, and didn't bother to listen to the actual person whom they targeted and proceeded to harass.. In your thread on sociopathic and psychopaths, obviously you hit it on the head; they are thieves of the soul, criminal and should be treated as such..

I have no intention on trying to repeat the microwave studies of 1990, nor attempt to try to build any of the illustrated MR systems in this thread though.

[Carmody]

A controlled emissive-reflective is required, as there is no stable or known zero, or calibration point to measure off of, otherwise. A stable differential base point/zero is required. Which then leads to the secondary problems mentioned, they have to be tamed.

Perhaps a ridiculously high frequency delta-sigma methodology can be realized and distortion is minimized by the individual range of potential error.

but they are probably doing things that way already.

It may be possible to cascade through and into a parallel buffer system, and thus time for each individual cycle is given, and a ghz delta sigma might be realizable in this way. Then the FFT analysis technique is utilized to average out errors. say, 16 repeats.

with the output signal having an embedded calibration clock/framing system. Much like digital audio's use of imbedded clocks.

[Bob]

And to put that much feedback onto the hand-held concept, it becomes unweildy, impractical and placed into the mode of theoretical study realms.. And certainly not affordable for any hobbiest to tinker with.

[Carmody]

Posted by Bob (here)
And to put that much feedback onto the hand-held concept, it becomes unweildy, impractical and placed into the mode of theoretical study realms.. And certainly not affordable for any hobbiest to tinker with.

Audio measurement systems already have the hardware and software design all down solidly. so that part is..kinda done already. Not quite ---but the initial fit is good.

Embedding the unique clocking and calibration signature into the output....gives the measurement side the ability to lock on to the captured signal and decode, thus enabling the foundation for separating signal from noise. repeats average out the noise quite nicely.

Teranex's original satellite imagery systems also point the way with regard to noise reduction in averaging repeats.

Looks nice on paper, at the least.

[Bob]

I understand the FFT (Fast Fourier Transform) analysis of audio is great providing that the analog to digital convertors are of good quality, and the filtering anti-aliasing systems are done correctly.. Point though with vector microwave spectral analysis of a target for let's say "substance analysis", moving the target, or moving anything in the environment, (or getting interference from any source such as "jingling coins in the pocket of one of the investigators") causes insurmountable variables, noise, which is incapable of being discriminated from any "usable data".

The FFT section shown here (right side of the image for the Forum folks) is where the processing of data is done in the computer (a LOT of math is performed on the data to try to massage out that which is useful).

What is "useful" information for let's say, muscle wasting disease? Or water/fat/muscle differences? With microwave, move the subject or the detector by 1/100th of an inch and the whole spectrum changes due to the spacing of the wavelengths.. Breathing in a living subject or simple "jitter" due to fidgeting, normal wiggling around happens, and again, trying to keep a sensor system precisely located is impractical, not cost effective for anything "portable"..

Therefore the "logic" to stay with the lower radio frequency range below 40 megahertz makes good sense for one to be able to detect lets say, a hidden explosive in the stomach or bowels of a passenger about to board a Jet.

(NOTE: FTIR is fast fourier Infra-Red analysis, and is used for infra-red spectrum analysis, even shorter wavelengths than the microwave spectrums.. and is good for looking at spectral emission of substances).

[Carmody]

oh goodie. a challenge.

Edit: With Teranex satellite imagery noise removal, they did frame stacking and adjacent pixel/frame interpolation.

The first ones did three frames at once and adjacent pixels, in a 3x3x3 matrix. live, flowing, noise reduced satellite video. first stills, then video. This was classified until the..mid-early 90's?

The more modern ones, at the max, they can do 5x5x5 pixel matrices, and that is with the center pixel's state in the given center frame, being the objective. then they move on to the next pixel. And then the frame. A rather complex affair, to say the least. But, now doable for about $3-5k of hardware and software.

Now that the patents are virtually extinct, if not extinct, there may be (IIRC) video cards and software that are designed to do the same, in a more limited way. Teranex is still making this hardware but in more advanced, lower cost and simplified portable ways. This may point in the right direction for one part of a potential solve. All that being said, my initial look at this problem is no where near adequate.

[Bob]

Posted by Carmody (here)
oh goodie. a challenge.

the "logic" to stay with the lower radio frequency range below 40 megahertz makes good sense for one to be able to detect lets say, a hidden explosive in the stomach or bowels of a passenger about to board a Jet.

Think about that for a system, something that can find inside a body the hidden explosive which has really been a concern to airlines, security, and passengers.. They have been using the FTIR bottle analysers to determine what is present in a water bottle that is visible for instance..

The MR system can have a bottle that is NOT see-through able to be analyzed for substance - perfect detector.. Right now they just TOSS the bottles of liquid over a certain size..

BUT the worry has been, what happens when the passenger has an explosive inside and intends to be a "suicide bomber".. those types of analysis are imperative it seems.. to save lives.