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DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers
Photonics Dictionary

inertial fusion energy

Inertial fusion energy (IFE) refers to a proposed method of generating electricity by harnessing the energy released from the fusion of light atomic nuclei, typically isotopes of hydrogen, through a process known as inertial confinement fusion. Inertial fusion energy aims to replicate the energy-producing reactions that power the sun and other stars, utilizing the immense heat and pressure generated during the fusion process to produce electricity.

Key features and concepts associated with inertial fusion energy include:

Inertial confinement fusion (ICF): In ICF, tiny pellets containing isotopes of hydrogen, such as deuterium and tritium, are subjected to intense laser or particle beams. The energy from these beams causes the outer layers of the pellet to implode, compressing and heating the core to conditions where nuclear fusion reactions occur.

Ignition: Achieving ignition is a critical goal in inertial fusion energy. Ignition occurs when the fusion reactions become self-sustaining, releasing more energy than is supplied by the external heating sources.

High temperatures and pressures: The fusion reactions in inertial confinement fusion require extremely high temperatures and pressures to overcome the electrostatic repulsion between positively charged atomic nuclei. These conditions are achieved through the rapid compression of the fusion fuel.

Release of energy: The fusion of light atomic nuclei releases a significant amount of energy in the form of high-speed neutrons and charged particles. This energy can be captured and used to produce electricity through conventional means, such as generating steam to drive turbines.

Various research and development efforts, including large-scale experimental facilities and projects like the National Ignition Facility (NIF), aim to advance the understanding of inertial confinement fusion and pave the way for the realization of inertial fusion energy as a practical and reliable source of electricity.

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