Can NMR technology reveal the true nature of atomic nuclei?

  • Thread starter Intuitive
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In summary, near absolute zero temperatures do not directly affect radioactive materials as their decay is independent of temperature. However, cooling a material to such low temperatures may have an indirect effect on its properties, which could potentially influence decay. The potential for using beta emitters as a fuel source through controlled slowing of the beta decay process using Bose-Einstein condensates is limited due to the short half-life and low specific energy of these particles. Further research and development is needed to make this a viable option for energy harvesting.
  • #1
Intuitive
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How does near absolute zero temperatures effect Radio active Materials?

Does Radioactive decay of a Radio Active Isotope slow down as the material approaches absolute zero temperature?:smile:
 
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  • #2
I wondered about this once myself, and although I am not sure of what really happens, I reasoned to myself that since the decay equation is temperature independent, there would be no effect on the decay with cooling. Also, decay is a result of the neutron and proton ratio within the atom, temperature is influences how atoms interact with each other. However, cooling a material so low seems it ought to have some effects on the material properties which may be an influence to decay, that is why I am unsure of my answer.
 
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  • #3
The temperature is a manifestation (the way we measure) atomic motion - the hotter an object, the faster the atoms in a solid or liquid vibrate or diffuse, or in a gas, the faster they move in the gas (and the higher the pressure in a given volume).

The behavior of the nucleus of a radionuclide is independent of the motion of an atom.

Of course, if one were to cause an collection of radioactive atoms to travel at relativistic speeds, the radionuclide(s) would appear to have a different half-life (time dilation).
 
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  • #4
Although temperature is directly proportional to kinetic energy, it is not really just a measure of vibration or movement in atoms. I have seen no real equations for temperature, except i derived this one from kinetic energy formula's,


T = ( 1/3 mv^2 ) / ( K )


where K is boltzmann's constant = 1.38066*10^-23 J/K
m is mass and v is velocity
The mass and boltzmann's constant can be canceled down if you subsitute in variables such as the mole, however the equation contains more variables at that point.
 
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  • #5
Is there a radio Active Isotope that, Especially a Beta Emitter that can be effectively slowed in its Beta decay process, Like P40 which has a half life of 260ms with 100% beta emission, If we can effectively slow and control Beta emitters then we can use Beta emitters as a fuel source for harvesting emitted electrons.

Question. In theory, Can there be a Radio Active Isotope that (acts) like a BEC or Bose-Einstein condensate when using Cryo-Physics?

If we could effectively slow down or speed up a beta decay process on the fly using BEC concepts.

This way the fuel will last as long as we want it to.

Controlling a Hard Beta emitter would bring new sources of harvestable energy for Space travel and such.

If this is possible then using specialized Capacitors to capture Beta emissions internally could be a promising persuit. Self charging Capacitors would be wild.
 
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  • #6
~() said:
Although temperature is directly proportional to kinetic energy, it is not really just a measure of vibration or movement in atoms. I have seen no real equations for temperature, except i derived this one from kinetic energy formula's,
T = ( 1/3 mv^2 ) / ( K )
where K is boltzmann's constant = 1.38066*10^-23 J/K
m is mass and v is velocity
The mass and boltzmann's constant can be canceled down if you subsitute in variables such as the mole, however the equation contains more variables at that point.
Try these -
http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/disfcn.html

http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/kintem.html

http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/molke.html
 
  • #7
Intuitive said:
Is there a radio Active Isotope that, Especially a Beta Emitter that can be effectively slowed in its Beta decay process, Like P40 which has a half life of 260ms with 100% beta emission, If we can effectively slow and control Beta emitters then we can use Beta emitters as a fuel source for harvesting emitted electrons.
Question. In theory, Can there be a Radio Active Isotope that (acts) like a BEC or Bose-Einstein condensate when using Cryo-Physics?
If we could effectively slow down or speed up a beta decay process on the fly using BEC concepts.
This way the fuel will last as long as we want it to.
Controlling a Hard Beta emitter would bring new sources of harvestable energy for Space travel and such.
If this is possible then using specialized Capacitors to capture Beta emissions internally could be a promising persuit. Self charging Capacitors would be wild.
There are a few problems with this scenario.

With a short half-life (e.g. 260 ms), the radionuclide would decay very rapidly, so that the activiy would drop by 3 orders of magnitude in 10 half-lives (here 2600 sec < 1 hr), by 6 orders of magnitude in 20 half-lives, and by 9 orders of magnitude in 30 half-lives.

The specific energy is very low. Consider the beta energy as compared to the mass of the nucleus, and consider that the beta energy has a spectrum (the anti-neutrino shares some of the decay energy), and the most probable energy is about 1/3 of the max energy.

Beta particles are emitted in all directions. To establish a sufficient potential, a good collection system is required.

I recommend some homework on BEC - http://en.wikipedia.org/wiki/Bose-Einstein_Condensate
Bosonic particles, which include the photon as well as atoms such as helium-4, are allowed to share quantum states with each other. Einstein speculated that cooling bosonic atoms to a very low temperature would cause them to fall (or "condense") into the lowest accessible quantum state, resulting in a new form of matter.
The nuclear properties are not affected by the condensation of atoms.

and - http://hyperphysics.phy-astr.gsu.edu/hbase/particles/spinc.html#c4
 
  • #8
Astronuc said:
There are a few problems with this scenario.
With a short half-life (e.g. 260 ms), the radionuclide would decay very rapidly, so that the activiy would drop by 3 orders of magnitude in 10 half-lives (here 2600 sec < 1 hr), by 6 orders of magnitude in 20 half-lives, and by 9 orders of magnitude in 30 half-lives.
The specific energy is very low. Consider the beta energy as compared to the mass of the nucleus, and consider that the beta energy has a spectrum (the anti-neutrino shares some of the decay energy), and the most probable energy is about 1/3 of the max energy.
Beta particles are emitted in all directions. To establish a sufficient potential, a good collection system is required.
I recommend some homework on BEC - http://en.wikipedia.org/wiki/Bose-Einstein_Condensate
The nuclear properties are not affected by the condensation of atoms.
and - http://hyperphysics.phy-astr.gsu.edu/hbase/particles/spinc.html#c4

Could a (tuned) Cooling LASER effectively penatrate an Electron Shell to Cool a Nucleus within the Atom or is this another dead end?

Are there any loop holes to take advantage of?
 
  • #9
Intuitive said:
Could a (tuned) Cooling LASER effectively penatrate an Electron Shell to Cool a Nucleus within the Atom or is this another dead end?
Are there any loop holes to take advantage of?
Lasers would not work either.

To affect the nucleus would require a high energy gamma-ray (photo-neutron reaction) > 1.6 MeV (gamma energy depends on the target radionuclide), a high energy charged particle (p, alpha, or otherwise) of several MeV, or neutrons (thermal energies or otherwise), which could be obtained in a conventional nuclear reactor.
 
  • #10
Astronuc said:
Lasers would not work either.
To affect the nucleus would require a high energy gamma-ray (photo-neutron reaction) > 1.6 MeV (gamma energy depends on the target radionuclide), a high energy charged particle (p, alpha, or otherwise) of several MeV, or neutrons (thermal energies or otherwise), which could be obtained in a conventional nuclear reactor.


Can Magnetic field lines effectly penetrate an Electron Shell to the Nucleus?

Magnetic Cooling?

Last ditch effort to find a means.
 
  • #11
Intuitive said:
Can Magnetic field lines effectly penetrate an Electron Shell to the Nucleus?
Magnetic Cooling?
Last ditch effort to find a means.

Magnetic cooling is primarily done on ATOMS, not nucleus. Trying to "cool" a nucleus is actually a rather meaningless concept, since "heat" and "temperature" normally requires a statistics of large number of particles. So cooling the nucleons within a nucleus is a rather vague concept.

Secondly, the nucleus does see external magnetic field. This is how NMR works. But it is the whole nucleus as a whole that reacts to this. You can't use the magnetic field to individually "cool" or manipulate the individual nucleons or partons inside the nucleus - at least we don't know anything that can do this.

Zz.
 
  • #12
I think if we had Coherent Magnetism both Bipolar and Monopolar then with some additional precision electronics we could interfere with the nucleons on a more advanced level.

But I do not know if Coherent Magnetism exists?, Let alone advancements in Monopolar coherent magnetic fields.:smile:

Hopefully it's something the future of science can figure out.

Being able to control (all forms) of Radio Active decay rate would give us a super sharp edge on energy.:rofl:
 
  • #13
ZapperZ said:
Secondly, the nucleus does see external magnetic field. This is how NMR works. But it is the whole nucleus as a whole that reacts to this. You can't use the magnetic field to individually "cool" or manipulate the individual nucleons or partons inside the nucleus - at least we don't know anything that can do this.
Zz.
ZapperZ,

Even in NMR, the externally applied magnetic field is insufficient to align the nuclear
magnetic moments.

What the externally applied magnetic field does is align the moments of the electrons
surrounding the nucleas. It is then the influence of these aligned electrons that actually
aligns the magnetic moment of the nucleus.

Dr. Gregory Greenman
Physicist
 
  • #14
Morbius said:
ZapperZ,
Even in NMR, the externally applied magnetic field is insufficient to align the nuclear
magnetic moments.
What the externally applied magnetic field does is align the moments of the electrons
surrounding the nucleas. It is then the influence of these aligned electrons that actually
aligns the magnetic moment of the nucleus.
Dr. Gregory Greenman
Physicist

But how do you explain the fact that you do get to probe the nucleus of hydrogen, for example, where the resonance freq. happen to match what you would expect for a bare nucleus. I'm not saying there's no shielding, but in pulse NMR, for example, the RF field that you apply to flip the spins will only flip the nuclear spins, and not the electrons.

Zz.
 

1. What is Radio-Active Cryo-Physics?

Radio-Active Cryo-Physics is a field of science that combines the principles of both radioactivity and cryogenics. It studies the behavior of radioactive materials at extremely low temperatures, typically below -150 degrees Celsius.

2. What are the applications of Radio-Active Cryo-Physics?

Radio-Active Cryo-Physics has various applications, including nuclear medicine, nuclear power generation, and research on new materials for radiation detection. It is also used in space exploration to study the effects of cosmic radiation on spacecraft and astronauts.

3. How does Radio-Active Cryo-Physics help in the medical field?

Radio-Active Cryo-Physics is used in medical imaging techniques such as PET scans, which use radioactive substances to create images of internal organs and tissues. It is also used in radiation therapy to treat cancer by targeting and destroying cancer cells with controlled doses of radiation.

4. What are the safety precautions in working with Radio-Active Cryo-Physics?

Working with radioactive materials always requires strict safety measures. In Radio-Active Cryo-Physics, scientists wear protective gear and work in specialized facilities to prevent exposure to harmful radiation. All equipment and materials are handled and disposed of according to strict regulations.

5. How is Radio-Active Cryo-Physics related to climate change?

Radio-Active Cryo-Physics plays a role in climate change research by studying the effects of radiation on the Earth's atmosphere and how it contributes to global warming. It also helps in developing sustainable energy sources by studying the potential of using nuclear power as a clean energy alternative.

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