Measuring magnetic fields in single aluminum wire plasmas with time-resolved optical spectroscopy

作者：Blesener K S^*; Pikuz S A; Shelkovenko T A; Blesener I C; Hammer D A; Maron Y; Bernshtam V; Doron R; Weingarten L; Zarnitsky Y

来源：High Energy Density Physics, 2012, 8(3): 224-226.

DOI：10.1016/j.hedp.2012.03.011

• Single exploding wire
• Visible spectroscopy
• Zeeman broadening

Using time-resolved emission spectroscopy at visible wavelengths, we explored the conditions of plasmas generated by current-driven explosions of single aluminum wires. The experiments were carried out with 15 mu m aluminum wires driven by the Low Current Pulser 3 (LCP3) at Cornell University.The plasma conditions were studied as a function of time and radial position, including electron temperature, electron density, ionization state, and magnetic field. To determine the magnetic field, we are working toward employing a new diagnostic method which makes use of Zeeman-effect-produced differences in the line shapes of two fine structure components of a multiplet that are equally broadened by Stark effect and by Doppler broadening. Preliminary results and data collected by a spectroscopy system with 3.2 angstrom resolution are presented.

• 出版日期2012-9