Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session NP11: Poster Session V: In-Person, Hall A (9:30-11:00am) and Virtual Poster Presentations (11:15am-12:30pm)
MFE: Stellerators
HED: High Energy Density
BEAMS: Short Pulse Laser Plasmas
HED: Short Pulse Laser Plasma
SPACE: Space Plasmas
9:30 AM - 12:30 PM
Wednesday, October 19, 2022
Room: Exhibit Hall A and Online
Abstract: NP11.00050 : Zeeman Polarization Spectroscopy on Gas Puff Z-Pinches*
Presenter:
Jay S Angel
(Cornell College)
Authors:
Jay S Angel
(Cornell College)
Euan Freeman
(Cornell University)
William M Potter
(Cornell University)
John B Greenly
(Cornell University)
plasma during implosion. Light is collected parallel to the azimuthal
magnetic field tangential to the gas puff implosion sheath. The light is
split into left and right hand circularly polarized components and then
focused into two linear fiber bundles and delivered to a 750 mm
spectrometer. By assuming cylindrical symmetry and from the sharp thermal gradiant localized Zeeman measurements are made. The peak wavelengths of the two polarizations can be resolved in our 1 MA experiments, and the magnetic field determined from their separation, despite Stark Broadening. Introducing dopants into the gas
puff allows the use of additional emission lines, such as a Carbon IV or Oxygen VI doublet, to increase spatial resolution. This
method was developed for z-pinch experiments on a 500 kA, 500 ns rise time
generator [1] as part of the Cornell/NNSA pulsed power center.
*Research supported by the NNSA Stewardship Sciences Academic Programs under DOE Cooperative Agreement No. DE-NA0003764
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