Reactor Logic Adapter can emit more signals and it also can receive signals to manage some of reactor parameters.
It also brings new computers functions
New machine block: Irradiator (1.19+)
Use high energy particles and radiation to transform items.
What is all about?
Your task is to keep Current Reactivity (CT) as close as possible to Target Reactivity (TR)
And by that you will get better Reaction Efficiency. That means more energy output, or steam per tick, or heat.
If Efficiency less than 80%, the Error Level will grow up. And if Error Level reaches 100%, Reactor will shutdown. It also can go BOOM 💥 if that is enabled in config. (disabled by default)
If Efficiency greater than 80%, the Error Level will slowly fall down.
Keep in mind Target Reactivity is a random value between 0 and 100, and it changes periodically.
So you can't just ignite your reactor and walk away. You has to spend some time to controll it manually, or implement sort of automation logic on redstone or computers.
Pay attention to Heat Multiplier (Hm). Less value means bigger time span between Target Reactivity reset.
And it also affects how fast Error Level changes. So for the manual control, try to keep it closer to 0.
Heat Multiplier depends on plasma temperature. Play with injection rate and you will find the best value.
It also depends on cooling type. Water cooling - less Heat Multiplier.
But if you want to get more energy, you have to automate reactor controlling.
Good Luck.
Обзор на русском.
Example LUA script for OpenComputers https://github.com/igentuman/BettefFusionReactor/wiki/Simple-OpenComputers---ComputerCraft-script-for-reactor