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The ZaP Flow Z-Pinch Project: Investigations of Flow Shear on MHD Stability
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nelson, Brian A. Shumlak, Uri Golingo, Raymond Jackson, Stuart L. Bright, J. E. Hartog, Daniel J. Den |
| Copyright Year | 2002 |
| Abstract | The ZaP Flow Z-Pinch observes gross stability of a Z-pinch while a sheared axial flow is present.∗ The Z-pinch is maintained more than 700 times the predicted kink instability growth time of a static pinch. The stable time is correlated with measurements of a sheared axial flow, and instability of the pinch is correlated with measurements of lower velocities with little or no shear. The sheared-flow Z-pinch is created by coaxial electrodes accelerating an annular plasma into a Z-pinch assembly region. Diagnostics include axial and azimuthal surface magnetic probe arrays, internal magnetic field probes, an azimuthal Rogowski array, a gridded energy analyzer, a bolometer, fast framing photography and diode arrays using spectral filters, ruby laser holographic interferometry, a CCD survey spectrometer, and a highresolution gateable 20-channel ICCD spectrometer system. Recent modifications include a solid “bullet-nose” inner electrode, an opening in the outer electrode end wall, and the replacement of two outer electrode gas puff valves by eight faster valves. ∗U. Shumlak et al., Phys. Rev. Lett. 87 (20), p. 205005-1, 2001 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://alfven.aa.washington.edu/aps2002/nelson.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
