Early Stage of the Explosion of Thin Flat Foils in a High-Current Diode at a Current of 40–80 kA
- Russian Academy of Sciences (RAS), Moscow (Russian Federation). Lebedev Physical Inst.
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
Web of Science
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