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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
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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.
T. Saito et al.
Fusion Science and Technology | Volume 47 | Number 1 | January 2005 | Pages 96-99
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST05-A615
Articles are hosted by Taylor and Francis Online.
In the GAMMA 10 tandem mirror device, an experimental plan of high power ECRH is now under way. As the first step, operation of existing gyrotrons for plug ECRH has been carried out at a power exceeding their nominal powers of 200 kW. In this step, the highest recorded value of [varphi]c for a hot ion mode plasma is 1.4 kV at Pplug = 240 kW. The effective temperature Teff of the end loss electrons as a scaling factor of the axial potential distribution has attained to 3 keV at a heating power of 260 kW and the potential difference between the plug to the end plate has exceeded 5 kV. Then, the potential range of the scaling between and Teff has been expanded. Use of a new gyrotron delivering much higher power is the second step. The first experimental campaign with this gyrotron has just started.
