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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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
Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
A. Ando, M. Inutake, K. Hattori, M. Shibata, Y. Kasashima (18R06)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 72-74
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1317
Articles are hosted by Taylor and Francis Online.
The ion cyclotron resonance heating and acceleration in a magnetic nozzle are performed in a fast-flowing plasma in the HITOP linear device in order to investigate an advanced space propulsion system. When radio-frequency (RF) waves are excited by a helically-wound antenna, plasma thermal energy W[perpendicular] and ion temperature drastically increase during the RF pulse. Thermal energy of the heated ion is converted its flow energy when the ions pass through a diverging magnetic nozzle. The plasma thermal energy changes so as to keep the magnetic moment constant. The exhaust plasma flow energy can be controlled by changing an input RF power only.
