Azimuthally correlated ablation between z-pinch wire cores

Zier, J. C.; Douglass, J. D.; Blesener, I. C.; Blesener, K. S.; Chalenski, D. A.; Gilgenbach, R. M.; Greenly, J. B.; Hammer, D. A.; Knapp, P. F.; Kusse, B. R.; Lau, Y. Y.; McBride, R. D.; Syed, W.; Yu, E. P.
October 2009
Physics of Plasmas;Oct2009, Vol. 16 Issue 10, p102702
Academic Journal
Azimuthally correlated wire core ablation was compared for closely spaced versus widely spaced wires in a 1 MA Z-pinch. X-ray point-projection diagnostics revealed that 240 μm spaced wires exhibited a correlation coefficient approaching unity in both real space and in k-space. This correlated ablation between wires at a fixed axial location is believed to occur due to an enhanced, localized Joule heating. Wires separated by 2.47 mm or greater were uncorrelated in real space, but correlated in k-space, indicating the ablation structure between wires was shifted in phase.


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