 
 <translate> Question: Fusion processes require fuel and a highly confined environment with a high temperature and pressure, to create a plasma in which fusion can occur. In stars, the most common fuel is hydrogen, and gravity creates the high temperature and confinement needed for fusion. Fusion reactors generally use hydrogen isotopes such as deuterium and tritium, which react more easily, and create a confined plasma of millions of degrees using inertial methods (laser) or magnetic methods (tokamak and similar), although many other concepts have been attempted. The major challenges in realising fusion power are to engineer a system that can confine the plasma long enough at high enough temperature and density, for a long term reaction to occur, and for the most common reactions, managing neutrons that are released during the reaction, which over time can degrade many common materials used within the reaction chamber.

What is the primary fuel that would be used in fusion reactors?
Stream-of-consciousness: The relevant information to answer the above question is: Fusion reactors generally use hydrogen isotopes such as deuterium and tritium, which react more easily, and create a confined plasma of millions of degrees using inertial methods (laser) or magnetic methods (tokamak and similar), although many other concepts have been attempted. <ibo> Ajụjụ: Usoro nchikota na-achọ mmanụ ọkụ na gburugburu ebe dị oke mma na oke okpomọkụ na nrụgide, iji mepụta plasma nke nwere ike ime. N'ime kpakpando, ihe na-ejikarị eme ihe bụ hydrogen, ike ndọda na-emekwa ka e nwee oké okpomọkụ na ebe siri ike a ga-anọ mepụta ihe ndị ga-eme ka ha gwakọta ọnụ. Igwe na-agbanye mmiri na-ejikarị hydrogen isotopes dị ka deuterium na tritium, nke na-emeghachi omume n'ụzọ dị mfe karị, ma mepụta plasma nke ọtụtụ nde ogo site na iji usoro inertial (laser) ma ọ bụ usoro magnetik (tokamak na ihe ndị yiri ya), ọ bụ ezie na ọtụtụ echiche ndị ọzọ anwalela. Nnukwu ihe ịma aka n'ịmepụta ike njikọta bụ ịhazi usoro nke nwere ike ijide plasma ogologo oge na oke okpomọkụ na njupụta, maka mmeghachi omume ogologo oge ime, yana maka mmeghachi omume ndị a na-ahụkarị, ijikwa neutrons a tọhapụrụ n'oge mmeghachi omume, nke oge nwere ike imebi ọtụtụ ihe ndị a na-ejikarị eme ihe n'ime ụlọ mmeghachi omume.  Gịnị bụ isi mmanụ a ga-eji na-arụpụta ihe ndị na-agbanye okpomọkụ? Mmetụta uche: Ihe ọmụma dị mkpa iji zaa ajụjụ a dị n'elu bụ: Ndị na-agbanye ọkụ na-ejikarị hydrogen isotopes dị ka deuterium na tritium, nke na-emeghachi omume n'ụzọ dị mfe karị, ma mepụta plasma nke ọtụtụ nde ogo site na iji usoro inertial (laser) ma ọ bụ usoro magnetik (tokamak na ihe ndị yiri ya), ọ bụ ezie na ọtụtụ echiche ndị ọzọ anwalela. 