Snubber for EAST neutral beam injector
Creators
- 1. Department of Electronic and Information Engineering, Jiaying College, Meizhou (China)
- 2. Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai (China)
- 3. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei (China)
Description
According to the B-H curve and structure dimensions of the Snubber, induction voltage and eddy current of any core lamination with the thickness of saturated regions are derived by referring to Fink's method, when accelerator breakdown occurs at the Experimental Advanced Superconducting Tokamak (EAST). Using Ampere's law, in each core tape, the eddy current and the thickness of saturated regions are deduced. And then, the equivalent resistance of the Snubber is obtained. The transient eddy current due to stray capacitance is analyzed, and the exponential time constant and the arc current are obtained. Then the maximum width of the lamination and the minimum thickness of the core tape are 28 mm and 114 μm, respectively. The obtained experimental time constant is approximately the same as the calculated one, which proves the accuracy and efficiency of the analysis method. (authors)
Additional details
Publishing Information
- Journal Title
- High Power Laser and Particle Beams
- Journal Volume
- 22
- Journal Issue
- 6
- Journal Page Range
- p. 1373-1377
- ISSN
- 1001-4322
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 43074968
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ACCELERATORS; ACCURACY; BEAMS; BREAKDOWN; CAPACITANCE; DIAGRAMS; EDDY CURRENTS; EFFICIENCY; ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; HT-7U TOKAMAK; INDUCTION; THICKNESS; TRANSIENTS; WIDTH
- Descriptors DEC
- CLOSED PLASMA DEVICES; CURRENTS; DIMENSIONS; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; INFORMATION; PHYSICAL PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES
Optional Information
- Notes
- 5 figs., 2 tabs., 9 refs.