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Study of Implosion and Precursor Dynamics and Collapse in Wire Arrays With End-On Laser Diagnostics

Journal Article · · IEEE Transactions on Plasma Science
 [1];  [2];  [3]
  1. Univ. of Nevada, Reno, NV (United States); University of Nevada, Reno
  2. ELI-ALPS, ELI-HU Nkft., Szeged (Hungary)
  3. Univ. of Nevada, Reno, NV (United States)
+ Show Author Affiliations
Radiative properties and plasma parameters of Z-pinches at stagnation depend on its previous phases including the ablation and implosion stages. Here, the dynamics of implosion in wire arrays including a collapse of the precursor was investigated at the 1-MA Zebra generator by end-on ultraviolet (UV) laser diagnostics at the wavelength of 266 nm. UV laser diagnostics displayed a complicated structure of the precursor with dense edges. Shadowgraphy and interferometry presented a collapse of the precursor to the dense Z-pinch. Depolarization of the laser beam in the Z-pinch plasma was studied with the end-on UV polarimeter. Comparison of images taken in two orthogonal polarizations showed small areas of depolarization in the trailing plasma around the Z-pinch.
Research Organization:
Univ. of Nevada, Reno, NV (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
SC0016500
OSTI ID:
1642470
Alternate ID(s):
OSTI ID: 1614475
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 11 Vol. 46; ISSN 0093-3813
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (5)

Fig. 1(p. 2)figure Fig. 1
Fig. 2(p. 3)figure Fig. 2
Fig. 3(p. 3)figure Fig. 3
Fig. 4(p. 4)figure Fig. 4
Fig. 5(p. 5)figure Fig. 5

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Laser diagnostics
Z-pinch
precursor
wire-array