The major problem with fusion experiments is, how to make plasma stay in its form.

The problem with fusion reaction is that the high-energy plasma will not keep its form. So when the energy pump to fusion ends the energy that comes inside will break the plasma. So what if the opposite polar particles will shoot at that plasma ball? 

That thing makes it possible that the fusion reaction begins from the plasma ball's core. The shockwave would travel inside that plasma ball. In regular cases, fusion starts from the middle of the fusion material. And that shockwave destroys the plasma ball. 

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The "cannon device" ion-anion collider where opposite polar particles will shoot against each other could be suitable for some kind of fusion system. 

In some cases, researchers introduced to use of some kind of "cannon device" for solving problems of the fusion reactor. This kind of cannon device is quite a simple system. 

Two linear particle accelerators are shooting opposite polar particles against each other. That thing will collide with anions and ions together. And that kind of system is easier to create than Tokamak-type reactors. 

The system could use lithium ions and chloride anions. But the problem is that the system must create enough energy for a self-sustaining fusion reaction. Otherwise, an ion-anion collider would be suitable for the fusion system. 

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So, when the electromagnetic radiation starts to grow temperature of the plasma causes a situation where the plasma particles start to repel each other. When the fusion ignition happens the energy that fusion forms break the plasma structure. 

In the case where fusion ignites the fusion material makes flash. It sends electromagnetic radiation around it. And that causes the electromagnetic vacuum, which pulls particles away from the plasma ball. In that case, electromagnetic overpressure breaks the structure. 

The plasma that is used in fusion experiments is monopolar. This means the electromagnetic force will push those particles away from each other. And the magnetic field that has the same polarity must push that plasma in one entirety. When the fusion ignites the energy level of the magnetic field that presses the particles must be higher than plasma. That helps to keep plasma in its form. 

The problem is that the fusion starts in the middle of the plasma.  where it starts the shockwave through that material. If the fusion can begin in the core of the plasma ball the impact wave would travel inside it. 

So the answer to the problems of the fusion could be that the opposite polar particles would shoot at that plasma ball. That can begin the fusion reaction at the core of the plasma ball. 

In that case, the magnets should press that plasma harder than the energy that forms in fusion pushes particles. If that thing is done there is the possibility to create a self-sustaining fusion reaction. 

Image and sources: 

https://scitechdaily.com/mit-contributes-to-success-of-historic-fusion-ignition-experiment/