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Magnetic field alignment studies for the URAGAN-3 torsatron.
- Source :
-
Review of Scientific Instruments . Jul1986, Vol. 57 Issue 7, p1233. 9p. - Publication Year :
- 1986
-
Abstract
- If the major axes of the helical and vertical field coils of a torsatron plasma confinement device are not aligned to within ∼1% of their major radii, the resulting error field can break up closed magnetic flux surfaces and reduce the effective plasma confinement volume. A novel technique for accurately locating the magnetic symmetry axes of torsatron helical and vertical coil sets to within ∼1 mm using magnetic field measurements near the device major axis (i.e., away from the confinement volume) is described and applied to the URAGAN-3 torsatron. The axis of the vertical field coil set was found to be shifted by ∼1 cm relative to the axis of the helical coil set; this shift could account for the reduced confinement volume observed in previous experiments. The magnetic measurements were repeated after coil repositioning to verify correct alignment. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTRIC coils
*MAGNETIC fields
Subjects
Details
- Language :
- English
- ISSN :
- 00346748
- Volume :
- 57
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Review of Scientific Instruments
- Publication Type :
- Academic Journal
- Accession number :
- 9783683
- Full Text :
- https://doi.org/10.1063/1.1138634