Calibration of a diamagnetic diagnostic for stored energy of high-temperature electron annuli in Elmo Bumpy Torus (EBT)
- 1 May 1982
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
The perpendicular energy component of the stored energy of the electron annuli in ELMO Bumpy Torus (EBT) can be observed with diamagnetic flux detecting coils. The calibration of the signal from the coils in terms of stored energy requires a model for the geometrical structure of the annulus. Using a model of concentric cylindrical current sheets, the calibration factor for the diamagnetic perpendicular energy signal is derived, including the effects of drift currents and coupling of flux from adjacent annuli. Numerical calculations show the calibration factor to be insensitive to reasonable variations in the model parameters.Keywords
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