The Z-pinch implosion can create a violent debris environment. Current of mega-ampere is delivered to centimeter-scale loads, ultimately causing the explosion of the targets along with nearby load hardware. Debris originating from explosion possess the potential to inflict damage on diagnostic apparatus and even compromise the integrity of the insulator stack. Understanding the characteristics of debris from the target region can provide significant guidance in designing shields for diagnostics and other protective measures.
Simulations on debris generation from Z-pinch targets have been conducted by some researchers, however, there is a lack of experimental results to validate the reliability of these simulations. To address this gap, we have established a debris monitoring system aimed at providing experimental insights into the mass, velocity, size, and spatial distribution of debris. This system utilizes high-speed photography technology to capture the flight trajectory and velocity of debris during the explosion, and has obtained preliminary footage results. Furthermore, a “debris collector” has been designed and implemented to collect the debris. Larger solid debris collide with the inner surface of the collector, leaving impact marks, while some smaller solid debris and molten spray adhere to the collector’s inner surface. Through detailed analysis of these distinctive marks, we gain a better understanding of the spatial distribution of the debris.

Z-pinch,Debris,diagnostics