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The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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.
M. K. Islam, Y. Nakashima, Y. Higashizono, T. Cho (19P37)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 316-318
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1387
Articles are hosted by Taylor and Francis Online.
To increase the electron temperature of the plasma in the central cell, electron cyclotron resonance heating (c-ECH) is applied. It is observed that both the density and temperature of the plasma decrease during the time of c-ECH, especially in the phase of wall conditioning. To understand the obtained results, plasma parameters including the H measurements at the central and anchor cells are studied. Simulation on magnetohydrodynamical (MHD) stability of GAMMA 10 is also done. It is suggested that sufficient value of the plasma in the anchor cell during c-ECH is necessary for MHD stability of the GAMMA 10 plasma. Related problem to increase the value of the plasma in the anchor cell is pointed out.