Nuclear fusion reactors primarily use a mixture of deuterium and tritium as fuel, as they have a relatively low ignition temperature and produce a large amount of energy.

In a nuclear fusion reactor, a strong magnetic field is used to confine the high-temperature plasma, preventing it from coming into contact with the reactor walls.

The divertor in a nuclear fusion reactor is designed to remove impurities from the plasma, such as helium ash, to maintain plasma stability and prevent damage to the reactor components.

Beryllium is often used as the material for the first wall of a nuclear fusion reactor due to its low atomic number, which minimizes neutron activation, and its high thermal conductivity.

The blanket in a nuclear fusion reactor serves the purpose of breeding tritium, which is a key fuel for fusion reactions, through the interaction of neutrons with lithium.

In a nuclear fusion reactor, the heat generated by the fusion reaction is transferred to a working fluid, which drives a turbine connected to a generator, converting the thermal energy into electrical energy.

One of the primary challenges in the development of nuclear fusion reactors is achieving and maintaining stable plasma conditions, as instabilities can lead to disruptions and damage to reactor components.

The tokamak design is a type of nuclear fusion reactor that utilizes a strong toroidal magnetic field to confine the plasma.

The neutron moderator in a nuclear fusion reactor is used to slow down high-energy neutrons produced by the fusion reaction, making them more likely to interact with the blanket material and breed tritium.

Neutron detectors are used in nuclear fusion reactors to measure the neutron flux, which provides information about the fusion reaction rate and helps monitor the reactor's performance.

The heat exchanger in a nuclear fusion reactor is used to transfer heat from the plasma to a working fluid, such as water or helium, which is then used to generate electricity or drive other processes.

Inertial confinement fusion (ICF) is a type of nuclear fusion reactor design that uses high-power lasers or particle beams to compress and heat a small pellet of fuel, causing fusion reactions.

The vacuum chamber in a nuclear fusion reactor is used to maintain a high vacuum inside the reactor, preventing contamination of the plasma and ensuring efficient fusion reactions.

In some nuclear fusion reactor designs, a pellet injector is used to inject small pellets of fuel into the plasma, which helps control the plasma temperature and density.