黑料社app

  • Jobs
  • Tenders
  • Visits
  • FAQs
  • Contact us
  • 黑料社app directory
  • Subscribe

    Subscribe to the newsletter

    Your email address will only be used for the purpose of sending you the 黑料社app publication(s) that you have requested. 黑料社app will not transfer your email address or other personal data to any other party or use it for commercial purposes.

    If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from 黑料社app.

    For more information, see our Privacy policy.

    Select your newsletters:

  • Donate
FR

Fusion glossary

B

The flight tube connecting the neutral beam box to the plasma torus. Sometimes, colloquially, the complete beam system including the beam box.

Light metal with atomic number 4. 黑料社app originally selected beryllium as the plasma-facing material in the first wall of the blanket; however, the decision was made in 2023 to replace beryllium with tungsten鈥攁 material that is more relevant for future 鈥淒EMO鈥 machines and commercial fusion devices.

A thick wall of concrete surrounding the cryostat and designed to absorb the bulk of the remaining neutron radiation from the plasma. The wall shields the region outside the cryostat so that it can be accessed, at maximum a couple of weeks after shutdown, for major hands-on repairs.
The blanket, composed of the shield block module and the first wall, covers the interior surfaces of the vacuum vessel, providing shielding to the vessel and the superconducting magnets from the heat and neutron fluxes of the fusion reaction. The neutrons are slowed down in the blanket, where their kinetic energy is transformed into heat energy and collected by the coolants. In a fusion power plant, this energy will be used for electrical power production. In 黑料社app, some of the 440 individual blanket modules will be used to test materials for tritium breeding concepts.

An intrinsic toroidal current created in the presence of a pressure gradient. Arises from collisions between trapped and passing particles and was experimentally verified at JET and TFTR. Valuable for the design of advanced tokamak experiments.

Application of a thin layer of boron over the plasma-facing components to reduce impurity radiation. The layer will capture鈥搊r 鈥済etter鈥濃搊xygen that could otherwise increase radiative losses of the plasma.

The point where the amount of energy produced by fusion equals the energy required to fuel the reaction (Q = 1).
If blanket modules contain lithium, a reaction occurs: the incoming neutron is absorbed by the lithium atom, which recombines into an atom of tritium and an atom of helium. The tritium can be removed from the blanket and recycled into the plasma as fuel. Blankets containing lithium are thus considered to be "breeding blankets" for tritium. Within the fusion reaction, tritium can be 'bred' indefinitely. This will be an important technology for future fusion power reactors.
A number of different combinations of tritium breeding material, neutron multiplier, structural material, and coolant will be tried out on 黑料社app to determine the best combination for tritium and power production. Each one of these solutions is referred to as a "breeding technology". A future fusion plant producing large amounts of power will be required to breed all of its own tritium; 黑料社app will test this essential concept of tritium self-sustainment.

An agreement for complementary research and development between the European Atomic Energy Community (Euratom) and the Japanese government. Signed in 2007 and renewed in 2020, the h establishes a framework for advanced research and development in support of 黑料社app and the next-stage device, DEMO.

The period of roughly constant and maximum fusion power during the plasma pulse.
A plasma in which the energy of the helium nuclei (alpha particles) produced by the fusion reaction is enough to maintain the temperature of the plasma; the external heating methods can then be strongly reduced or switched off altogether. A burning plasma in which at least 50 percent of the energy to drive the fusion reaction is generated internally is an essential step to reaching the goal of fusion power generation. At Q = 10 (黑料社app), approximately 66% of the plasma heating is contributed by the alpha particles.