Non-ambipolar transport in a magnetic divertor
Plasma transport is studied in a simulated magnetic divertor in the Wisconsin single ring DC machine. The transport perpendicular and parallel to the magnetic field is shown to be non-ambipolar by a variety of measurements, but can be forced to be ambipolar by an appropriately designed divertor target plate. The density profile in the scrape-off zone agrees with the predictions of a one-dimensional diffusion equation that assumes classical cross-field transport and plasma flow parallel to the field at the local ion acoustic velocity.
- Research Organization:
- Wisconsin Univ., Madison (USA)
- Sponsoring Organization:
- USDOE Asslstant Secretary for Energy Technology
- DOE Contract Number:
- AS02-76ET53051
- OSTI ID:
- 5467052
- Report Number(s):
- DOE/ET/53051-3
- Country of Publication:
- United States
- Language:
- English
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