Publications

Spectroscopic diagnosis of nested-wire-array dynamics and interpenetration at 7 MA

Deeney, C.; Apruzese, J.P.; Coverdale, Christine A.; Whitney, K.G.; Thornhill, J.W.; Davis, J.

Nested-wire array experiments were performed at the 7 MA level with 150 ns implosion times from an outer diameter of 40 mm. Analysis of spectral data indicates that material from the outer array preferentially occupies the high temperature core of the stagnated pinch independent of the interwire gap in the range of 1.1 to 4.5 mm. Detailed spectral analyses indicate that the outer array in both high or low-wire number cases in the source of the material that is heated to the highest temperatures. The results indicate that for the first time the outer array material becomes the highest temperature plasma during the implosion of the nested array.