| Autor: |
Ko J; University of Wisconsin-Madison, Madison, Wisconsin 53706, USA. jko6@wisc.edu, Den Hartog DJ, Caspary KJ, Den Hartog EA, Pablant NA, Summers HP |
| Jazyk: |
angličtina |
| Zdroj: |
The Review of scientific instruments [Rev Sci Instrum] 2010 Oct; Vol. 81 (10), pp. 10D702. |
| DOI: |
10.1063/1.3461995 |
| Abstrakt: |
A high-precision spectral motional Stark effect (MSE) diagnostic provides internal magnetic field measurements for Madison Symmetric Torus (MST) plasmas. Currently, MST uses two spatial views--on the magnetic axis and on the midminor (off-axis) radius, the latter added recently. A new analysis scheme has been developed to infer both the pitch angle and the magnitude of the magnetic field from MSE spectra. Systematic errors are reduced by using atomic data from atomic data and analysis structure in the fit. Reconstructed current density and safety factor profiles are more strongly and globally constrained with the addition of the off-axis radius measurement than with the on-axis one only. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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