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Proceedings Paper

Optical trajectory diagnosis of 1.5MA wire-array Z pinches with fiber coupled streak camera
Author(s): Z. Wang; J. L. Yang; L. B. Li; R. K. Xu; Z. H. Li
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Paper Abstract

A fiber coupled streak camera is developed and applied in Z-pinch experiments to investigate the optical trajectory of wire-array implosions with one-dimensional (1D) spatial resolution of 100μ~400μ. The 1D image of the imploding plasma is formed by a slit and relayed to a linearly arranged fiber array, which is capable of transmitting the 1D image out from within the vacuum chamber. A mylar film is setup before the fiber array to absorb the X-ray light while transmitting visible light into the fibers, which are coupled to a streak camera. And for X-ray diagnosis the mylar film is substituted by an infra scinllator, which converts X-ray into visible light and relays it into the fiber array. The experiments were performed on QiangGuang-1 facility. With the slit parallel to the axis of the wire array, optical measurement of time-resolved radial distribution of the imploding plasma is carried out as well as diagnosis of X-ray implosion dynamics. The 1D optical trajectory (radius versus implosion time) of imploding plasma is obtained. And some discussions of the experiments are also presented in this letter.

Paper Details

Date Published: 11 January 2007
PDF: 6 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62790F (11 January 2007); doi: 10.1117/12.725080
Show Author Affiliations
Z. Wang, Tsinghua Univ. (China)
J. L. Yang, Institute of Nuclear Physics and Chemistry (China)
L. B. Li, Institute of Nuclear Physics and Chemistry (China)
R. K. Xu, Institute of Nuclear Physics and Chemistry (China)
Z. H. Li, Institute of Nuclear Physics and Chemistry (China)


Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics

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