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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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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Latest News
College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
H. Chikaraishi, T. Inoue, T. Takami, K. Aoyama, T. Haga, LHD Experiment Group
Fusion Science and Technology | Volume 58 | Number 1 | July-August 2010 | Pages 586-592
Chapter 12. Superconducting Magnet System | Special Issue on Large Helical Device (LHD) | doi.org/10.13182/FST10-A10846
Articles are hosted by Taylor and Francis Online.
The Large Helical Device (LHD) has six superconducting coil pairs that form a magnetic field, and plasma experiments of LHD require high accuracy and stability to control the coil current, which must be controlled in a wide range to change the magnetic field. This paper introduces the power system for the LHD superconducting magnets and the enhancement of the power supplies.When designing the power supplies, it is difficult to satisfy the requirements for the current control with a simple controller installed in each power supply because of the tight magnetic coupling between the superconducting coils. In addition, synchronized operation of these power supplies is important for LHD operation. To satisfy the current control requirements and to synchronize operation of the power supplies, six dc power supplies controlled by a computer system were constructed and are operating. The fundamental operation of the LHD is performed under the dc magnetic field, and a power system suitable for steady-state operation was designed and constructed. With the progress in fusion plasma research, more dynamic experiments are planned, and they require dynamic control of the magnetic field. For this purpose, the output voltages of power supplies were enhanced using additional pulse power supplies.