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Summary form only given. The ablation phase of exploding multi-wire experiments driven by fast-rising currents in which both global and local magnetic fields are dynamically significant is poorly understood at present. In particular, a quasi-periodic modulation in the plasma flow accelerated from the wire cores following initiation appears at all current levels, and is not fully explained. The lack...
Summary form only given. The ablation phase of exploding multi-wire experiments driven by fast-rising currents in which both global and local global magnetic are dynamically significant is poorly understood at present. In particular, a quasi-periodic modulation in the plasma flow accelerated from the wire cores following initiation appears at all current levels, and is not fully explained. The lack...
We present results from the first wire array experiments performed on a new 250 kA linear transformer driver (LTD) generator installed at UCSD. The LTD design represents a new approach in the field of exploding wire experiments. Importantly this driver creates the opportunity for repetition-rated experiments, which are unfeasible for traditional Marx driven systems. We will discuss the design of the...
This paper presents a dynamical study of vacuum gap formation in X-pinch plasmas at 80 kA pulsed power generator. Diagnostics include multiple frame laser interferometry to recover quantitative information, as well data from X-ray diodes, laser Schlieren imaging, time-integrated X-ray pinhole cameras, and a gated XUV framing camera. The velocity with which the gap opens can be determined from laser...
X-pinches driven by an 80-kA current are investigated by using high-resolution dark-field laser Schlieren imaging. Results demonstrate the evolution of the low-density coronal plasma and the formation of an axial jet. Quantitative measurements of plasma expansion rates and the jet velocity are carried out for several materials.
Summary form only given. One of the most fundamental open questions in the science and technology of atmospheric pressure glow discharges (APGD) is how to enhance plasma reactivity (application efficacy) while maintaining plasma stability (process controllability). This is particularly challenging since the homogeneous state of glow discharges is prone to instabilities, particularly at high and atmospheric...
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