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: NP11.00070 : Diagnosing turbulent density fluctuations in Ne and Ar gas-puff Z-pinch implosions*
Presenter:
Alexander Rososhek
(Cornell University)
Authors:
Alexander Rososhek
(Cornell University)
Eric S Lavine
(Cornell University)
Bruce R Kusse
(Cornell University)
William M Potter
(Cornell University)
David A Hammer
(Cornell University)
In this research, a recently developed Imaging Refractometry scheme,4 which is a version of Schlieren imaging, is applied to obtain the spectrum of angular deflections of a laser beam propagating through the imploding plasma. Moreover, a method to establish a one-to-one mapping from deflection angle to k-space enables the analysis of the power density spectrum at many different positions along the radial direction. This spectrum is associated with the microscopic density fluctuations in the plasma and hence provides additional information related to the turbulent ion kinetic energy. Results from this diagnostic will be presented.
*This research is funded by Cornell Laboratory of Plasma Studies and Dean's Office of Cornell College of Engineering.
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