Javier,

To state the obvious P + B11 fusion is difficult.

You know the cross section is very small, and there is a good reason for this. The two particles have very different mass and therefore different frequencies, so if you want them to come together and fuse you have to try and align their speed. It's much easier to do this with D+D because the molecules have equal mass.

What makes the frequency of B11 difficult to control is also the fact that it has multiple ionisation states and even at its full ionised state its potential is ~14kV lower than a proton.

My suggestion would be to use two ion sources to inject ions, each floating at different potential, one for H floating at negative 35kV and a second source for B11 floating at negative 20kV. The actual reaction chamber at ground potential, with additional magnetic confinement if you like.

If this doesn't make any sense to you, so feel free to ask, maybe I can explain it better.

Steven

Thank you Steven, you are a step forward our simulator because now we are trying to confine protons.

As you say boron and protons must be injected at a different potential, but I should use the same accelerator to reduce cost, but injecting both in different stages of the accelerator. As you said at 35keV the cross-section of P+B11 fusion is too low.

Here is a small "photo" of a simulation taken today: https://www.researchgate.net/project/PULSOTRON-500k-SE-500KeV-THERMONUCLEAR-FUSION-REACTOR

Javier

Javier,

As I said above, the cross section will depend on the level of ionisation you achieve with the B11. Without knowing what your reactor looks like it is difficult to advise, but yes theoretically you can use the same accelerator and inject the gas at different potentials.

I look forward to follow your results. How do you propose to measure the rate of fusion?