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Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
2021 ANS Virtual Annual Meeting
June 14–16, 2021
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
Fusion Science and Technology
2021 ANS Virtual Annual Meeting: President’s Special Session
The current orthodoxy on climate change—that it is an existential threat to global civilization—was challenged on June 15 during the 2021 ANS Virtual Annual Meeting's President’s Special Session, which featured two prominent dissenters from that view, Michael Shellenberger and Mark P. Mills.
If the nucleus of a heavy atom–such as uranium–absorbs a neutron, the nucleus can become unstable and split. This is called nuclear fission. Fission releases energy in the form of heat. Although fission can occur naturally, fission as encountered in the modern world is usually a deliberate man-made nuclear reaction.
Typical fission events release about two hundred million eV (200 MeV) of energy. In contrast, most chemical oxidation reactions (such as burning coal) release at most a few eV per event. So, nuclear fuel contains at least ten million times more usable energy per unit mass than does chemical fuel.
Fusion is the opposite reaction of fission. In fusion, atoms are fused together.For a fusion reaction to occur, it is necessary to bring two nuclei so close that nuclear forces become active and glue the nuclei together. Deuterium and Tritium, isotopes of hydrogen, are used in fusion reactors. Nuclear forces are small-distance forces and have to act against the electrostatic forces where positively charged nuclei repel each other. This is the reason nuclear fusion reactions occur mostly in high density, high temperature environment.
Recreating that environment is the greatest challenge to producing commercial scale fusion energy, but it’s a challenge well worth pursuing. Nuclear fusion can produce four times the amount of energy as nuclear fission.
Last modified April 14, 2020, 11:29pm CDT