Good technical intro to H-mode (high-confinement mode) for fusion reactions to work: https://www.energy.gov/science/articles/science-close-developing-cookbook-

Good technical intro to H-mode (high-confinement mode) for fusion reactions to work: https://www.energy.gov/science/articles/science-close-developing-cookbook-efficient-fusion-energy https://www.energy.gov/science/articles/science-close-develo... >> In the H-mode, a calm edge without turbulence reduces how much heat and how many charged particles the plasma loses. This leads to a sharp increase in pressure across the entire volume of the plasma, including the core where the conditions that can lead to fusion occur. The reduced energy and particle losses also minimize damage to the material surfaces surrounding the plasma.