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Title: Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA

Journal Article · · Journal of Experimental and Theoretical Physics
 [1];  [1];  [1];  [1];  [1]
  1. Russian Academy of Sciences (RAS), Moscow (Russian Federation). Lebedev Physical Inst.
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The initial stage of the nanosecond explosion of 1–15 μm-thick flat foils in a diode with a current of 40–80 kA is studied. Projection radiography is used to take images of exploded foils at a spatial resolution of 3–4 μm using the soft X-ray radiation (E = 2.5–5 keV) of a hybrid X-pinch and at a time resolution of 0.1 ns. Foil strips 0.3–2 mm wide and 0.5–7 mm long were introduced in the return circuit of the diode in a high-current BIN generator with a current amplitude of 270 kA and a current rise time of 100 ns; the main load of the generator is an X-pinch. The experiments demonstrate that small-scale structures, the shape and the size of which depend on the foil material and the current density and distribution in a foil, are formed in a foil. Possible scenarios of the structure formation are discussed.

Research Organization:
Russian Academy of Sciences (RAS), Moscow (Russian Federation); Cornell Univ., Ithaca, NY (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003764
OSTI ID:
1543424
Journal Information:
Journal of Experimental and Theoretical Physics, Vol. 128, Issue 6; ISSN 1063-7761
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (15)

Observations of Modified Three-Dimensional Instability Structure for Imploding z -Pinch Liners that are Premagnetized with an Axial Field journal December 2013
Characterization of a small-scale exploding bridge foil flyer generator journal January 1993
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X-pinch. Part I journal April 2015
Penetrating Radiography of Imploding and Stagnating Beryllium Liners on the Z Accelerator journal September 2012
Instability growth for magnetized liner inertial fusion seeded by electro-thermal, electro-choric, and material strength effects journal October 2015
On the Evolution From Micrometer-Scale Inhomogeneity to Global Overheated Structure During the Intense Joule Heating of a z-Pinch Rod journal April 2017
Structural, vibrational and electronic properties of CuO nanoparticles synthesized via exploding wire technique journal February 2018
Study of Electric Explosion of Flat Micron-Thick Foils at Current Densities of (5−50)×108 A/cm2 journal February 2018
Z pinches as intense x-ray sources for high-energy density physics applications journal May 1997
Determination of the size and structure of an X-pinch x-ray source from the diffraction pattern produced by microfabricated slits journal January 2005
Electric explosion of fine wires: Three groups of materials journal August 2015
Technique for insulated and non-insulated metal liner X-pinch radiography on a 1 MA pulsed power machine journal November 2017
A Study of Thin Foil Explosion journal November 2018
A review of projection radiography of plasma and biological objects in X-Pinch radiation journal March 2016

Figures / Tables (7)

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS