3 ms·

I'm working on a concept that would use the field from a COTS permanent magnet MRI machine. I've got more information at http://www.ddprofusion.com http://www.d

I'm working on a concept that would use the field from a COTS permanent magnet MRI machine. I've got more information at http://www.ddprofusion.com http://www.ddprofusion.com

ohiovr 6y ago
It looks like 3d confinement. Is that what you have envisioned?
- pontifier 6y ago
  I'm not quite sure what you mean by "3d confinement". The device would contain a non-neutral plasma in a device similar to a Penning trap. I anticipate that a semi-stable oscillation can exist that momentarily forces all trapped ions to occupy a small one dimensional region (very small diameter cylinder) along the central axis of the device.
  - ohiovr 6y ago
    A magnetic field causes charged particles to revolve around a set axis. Depending on their charge they revolve around in opposite directions. You can enclose this in a torus to make them go end to end but collisions cause these particles to jump loops and the plasma expands. The stronger the field the tighter the gyroradi. 3D confinement means they all run in circles in a Tokamak. But the more collisions the greater these particles move away from the center. Moving these particles back to the center to equator of the device is not possible with a Tokamak under normal operating conditions. Defeating this limitation would open new avenues of confinement. Hence the 3rd dimension of confinement is out of our reach at the present time with tokamak style confinement. An entirely new kind of confinement could be possible. But it will depend on principles we have scarcely dreamed of.
    - pontifier 6y ago
      In my proposed device, the field lines are uniform and the single species ions all orbit identically. They are able to follow their entire cyclotron trajectory, and all these trajectories intersect the same area at the same time. Penning traps are known for their excellent containment characteristics in all directions, but the maximum density of a non-neutral plasma is not usually sufficient for fusion to occur before the Brillouin limit is reached. My device exceeds the Brillouin limit only for short periods of time, but in a way that might be able to oscillate stably.

I'm working on a concept that would use the field from a COTS permanent magnet MRI machine. I've got more information at http://www.ddprofusion.com http://www.ddprofusion.com

ohiovr 6y ago

It looks like 3d confinement. Is that what you have envisioned?

pontifier 6y ago
I'm not quite sure what you mean by "3d confinement". The device would contain a non-neutral plasma in a device similar to a Penning trap. I anticipate that a semi-stable oscillation can exist that momentarily forces all trapped ions to occupy a small one dimensional region (very small diameter cylinder) along the central axis of the device.
- ohiovr 6y ago
  A magnetic field causes charged particles to revolve around a set axis. Depending on their charge they revolve around in opposite directions. You can enclose this in a torus to make them go end to end but collisions cause these particles to jump loops and the plasma expands. The stronger the field the tighter the gyroradi. 3D confinement means they all run in circles in a Tokamak. But the more collisions the greater these particles move away from the center. Moving these particles back to the center to equator of the device is not possible with a Tokamak under normal operating conditions. Defeating this limitation would open new avenues of confinement. Hence the 3rd dimension of confinement is out of our reach at the present time with tokamak style confinement. An entirely new kind of confinement could be possible. But it will depend on principles we have scarcely dreamed of.
  - pontifier 6y ago
    In my proposed device, the field lines are uniform and the single species ions all orbit identically. They are able to follow their entire cyclotron trajectory, and all these trajectories intersect the same area at the same time. Penning traps are known for their excellent containment characteristics in all directions, but the maximum density of a non-neutral plasma is not usually sufficient for fusion to occur before the Brillouin limit is reached. My device exceeds the Brillouin limit only for short periods of time, but in a way that might be able to oscillate stably.