2. Breaking the Coulomb barrier by electrostatic acceleration of ions ?
Just some ideaīs....
A short time ago I read about the fusor and became quite interested in it. Here just some of my thoughts.
Itīs seems not true, but it really does exit: the Farnsworth–Hirsch fusor, or simply fusor. It is an apparatus designed to break the Coulomb barrier and to create (a tiny little bit) energy.
Here a schematic image:
Fig. 1 Schematic drawing of "traditional" fusor.
(Deuterium is an isotoop of hydrogen)
Deuterium ions are accelerated by the voltage difference (about 80 kV). They will congregate in the centre and form a kind of plasma. Inside this plasma the deuterium ions have of all kind of velocities, but some velocities are high enough to produce a fusion of the deuterium nuclei. This fusion releases energy and radiation, which can be measured.
Only a little bit energy production has been achieved untill now, and never more than the input. Also a big problem of these fusors are the collisions of the ions with the inner grid and the high temperature of it. That is the reason that the grid is destroyed when the fusor starts working too well.
But if these collisions with the grid are not a problem but just the goal of the process...
(not working, only an idea..)
Fig.2 Schematic drawing of a device with a boron compound inner grid.
The grid is cooled by water, which hopefully converts into steam by the heat produced by nuclear fusion.
Boron seems to have a large cross-section what means itīs eager to capture particles (thatīs what Iīve understood so far).
What hopefully perhaps may occur is that a high speed H+ ion collides with a Boron nucleus in the grid causing the following nuclear fusion reaction:
115B + 11H -> 3 42He + 8,68 MeV
In the "traditional" fusors when two Deuterium ions collide, then both of them have a high speed. But itīs difficult that they hit each other in the right way causing a nuclear fusion.
In the proposed fusor of fig. 2 a boron nucleus in the grid has not speed; only the incoming H+ ion has a high speed. This is a disadvantage because the relative speed between them is less. But the possibility that a H+ ion and a Boron nucleus hit each other in the right way is higher (I suppose).
An advantage of the fusion reaction with boron is that it not produces neutrons, which are dangerous and noxious. Furthermore the He+ nuclei that are produced will move with high speed towards the outer shell and enhance the voltage between the outer shell and the grid.
But how many H+ ions will hit the grid, not causing any fusion but yes wearing the grid? And if we use a mix of H+ ions and boron ions inside the near vacuum chamber? I think that with the disign of fig. 2 there will be too many losses because of not productive collisions with the grid.
If we could invent a way that only high speed H+ ions hit the boron in the grid?
Boron11 hydrogen fusion is not new, see: /49chevy.blogs.com/fusor/2010/01/ufl-breakthrough.html
The grid must be heat resistent . Several boron compounds are known for their extreme hardness and toughness.
Itīs fun to think about this, will keep thinking...
An interesting idea to accomplish fusion is the
Crossfire Fusion Reactor?
An other idea is this fusor without an inner grid: www.emc2fusion.org/
Perhaps a new idea: