What are the roles of toroidal and poloidal magnetic field on tokamak?

Confining the plasma Current tokamaks use two magnetic fields, a poloidal and a toroidal one. This keeps the plasma flowing through the inside of the tokamak and keeps it away from the side walls because the field always points straight horizontally.

What are the parts of a fusion reactor?

The Components of a Fusion Power Plant

• A magnetized target fusion system has 3 main components: a plasma injector, which supplies the fuel; an array of pistons, to compress the fuel; and a chamber of spinning liquid metal, to hold the fuel and capture the energy.
• Plasma Injector.
• Electricity Generation.

Why the plasma shape in tokamak reactor is in Doughnut shape?

MCF devices are often shaped like donuts. The magnetic fields don’t heat the fuel directly. They just confine the hot plasma so that the target temperature and density can be reached. Hot fuel atoms are injected into the plasma to provide the heat.

What is a toroid coil used for?

A toroid is a coil of insulated or enameled wire wound on a donut-shaped form made of powdered iron. A toroid is used as an inductor in electronic circuits, especially at low frequencies where comparatively large inductances are necessary.

What is tokamak in plasma physics?

A tokamak is a machine that confines a plasma using magnetic fields in a donut shape that scientists call a torus. Fusion energy scientists believe that tokamaks are the leading plasma confinement concept for future fusion power plants.

What fuel does tokamak use?

The fusion reaction in the ITER Tokamak will be powered with deuterium and tritium, two isotopes of hydrogen. ITER will be the first fusion machine fully designed for deuterium-tritium operation.

How is plasma created in a tokamak?

The heart of a tokamak is its doughnut-shaped vacuum chamber. Inside the chamber, gaseous hydrogen fuel is placed under extreme heat and pressure, turning into a plasma—a hot, electrically charged gas. The charged particles of the plasma can be controlled by massive magnetic coils placed around the chamber.

How does tokamak reactor work?

In a tokamak, magnetic field coils confine plasma particles to allow the plasma to achieve the conditions necessary for fusion. A central solenoid (a magnet that carries electric current) creates a second magnetic field directed along the “poloidal” direction, the short way around the torus.