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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Fusion Science and Technology
Latest News
Zap Energy hits 37-million-degree electron temperatures in compact fusion device
Zap Energy announced April 23 that it has reached 1-3 keV plasma electron temperatures—roughly the equivalent of 11 to 37 million degrees Celsius—using its sheared-flow-stabilized Z-pinch approach to fusion. Reaching temperatures above that of the sun’s core (which is 10 million degrees Celsius temperature) is just one hurdle required before any fusion confinement concept can realistically pursue net gain and fusion energy.
Koichi Maki, Chikara Konno, Fujio Maekawa, Hiroshi Maekawa, Katsumi Hayashi, Kobun Yamada
Fusion Science and Technology | Volume 36 | Number 1 | July 1999 | Pages 52-61
Technical Paper | doi.org/10.13182/FST99-A91
Articles are hosted by Taylor and Francis Online.
In traditional shielding design, thicknesses of shieldings have been determined so that calculated shielding properties multiplied by safety factors do not exceed design limits. A shielding design margin is defined for the safety factors that are included in the estimated shielding thicknesses in the design process. Sensitivities of the shielding design margin to the fusion reactor scale and amount of material are examined for a typical fusion experimental reactor such as the International Thermonuclear Experimental Reactor (ITER). From these investigations, supposing the shielding design margin can be made smaller by up to half the typical value of 3 used in a reactor, the amount of toroidal coil, transformer coil, and other torus component materials can be reduced by 1.5, 0.7, and 0.7%, respectively. If one includes a reactor building and accessory facilities that are not affected by the shielding design margin, the whole reactor material reduction becomes 0.55%. Since reactor cost is assumed to be proportional to the amount of material, the 0.55% reduction may be worth $55 million when the estimated price of the reactor is assumed to be $10 billion.