BARC/PUB/2022/0272

 
 

Study of microsecond X-pinches of refractory and non-refractory metals

 
     
 
Author(s)

Andola, S. C.; Jaiswar, A. C.; Kaushik, T. C.; Joshi, K. D.
(APD)

Source

Journal of Physics D, 2022. Vol. 55 (22): pp. 1-11: Article no. 225202

ABSTRACT

In this report, we present a comparative study on the properties of x-rays from X-pinches made of two groups of metallic wires. The results were obtained on a small current driver having dI/dt of 0.04–0.11 kA ns−1. The X-pinches made of refractory (Mo and W) and non-refractory (Al and Cu) wires were studied for the current required to pinch and their x-ray parameters such as x-ray yield, timing, jitter, number of bursts, and source size. It has been observed that despite lower linear mass density, the Cu group requires a higher current for plasma to pinch than the W group X-pinches. For a given configuration, a faster current compresses the plasma at a higher current which leads to comparatively higher x-ray yield. Substantial enhancement in the quality of x-rays has also been observed in wires with few micron thick dielectric coating. The results of this work can be useful in the development of a small capacitive X-pinch system suitable for studies related to high energy density physics.

 
 
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