[jaiii (OP)]

Good day.

It would operate the reactor for nuclear fusion?

We have a hollow metal sphere.
On the surface of the sphere are arranged and directed proton guns in the center of the sphere.
A voltage between the center of the sphere and the surface will rise to positive values ​​between 0 V and 300 MV linear.
Guns will shoot ionised protons to the center of the sphere.
Linear voltage change will simulate the shrinking volume of a sphere and hence more frequent collisions between protons per number precipitation sakundu.
If necessary, it is possible to heat the inside of the ball.

Thank you for your feedback.

Goodbye.

[CliffordK]

You would have to have a positive charge on the inner surface layer of the sphere to repel the proton ions. 
Then, of course, always shooting the protons towards the middle.

If the inner surface of the sphere becomes negative, then the protons will rapidly move towards that layer.

I think it would be difficult to maintain the static charges you desire.

You may not wish everything to be in ionic form.  For example, you would have much higher proton density if you merely put a lump of tar in the middle of the sphere.

[jaiii (OP)]

Proton guns ionized atoms of hydrogen and then shoot thise paricles to center of hollov.
Can start nuclear fusion in this reactor