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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Fusion Science and Technology
Latest News
Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
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.
