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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Won Ha Ko, Hoon Kyun Na, Seong-Heon Seo, Myeun Kwon (19P30)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 295-297
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1380
Articles are hosted by Taylor and Francis Online.
The ion temperature, rotation velocity, and impurity density can be obtained from CHarge Exchange Recombination Spectroscopy (CHERS) diagnostics, one of active beam diagnostics, using NBI or DNB.We measure the charge exchange emission line of the carbon using CHERS and DNB system and analyze the ion temperature from the emission line in the RF heated HANBIT plasma. DNB system which has 27 kV beam voltage and 50 msec pulse width must be controlled critically to measure the exact ion temperature in the experiments.End loss ion temperature measured using energy analyzer is compared with the ion temperature obtained from the charge exchange emission line. The CHERS diagnostics has been widely used to measure ion temperature and poloidal rotation velocity in tokamak.
