Measurements of the parameters of a condensed deuterated Z-pinch on the angara-5-1 facility

Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X16040012· OSTI ID:22614140

Aleksandrov, V. V. ^[1]; Bryzgunov, V. A. ^[2]; Grabovski, E. V.; Gritsuk, A. N. ^[1]; Volobuev, I. V. ^[3]; Kazakov, E. D.; Kalinin, Yu. G.; Laukhin, Ya. I.; Medovshchikov, S. F.; Mitrofanov, K. N.; Oleinik, G. M. ^[1]; Pimenov, V. G. ^[4]; Smirnova, E. A.; Ustroev, G. I. ^[2]; Frolov, I. N. ^[1]

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1. Troitsk Institute for Innovation and Fusion Research (Russian Federation)
2. National Research Centre Kurchatov Institute (Russian Federation)
3. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
4. Russian Academy of Sciences, Zelinsky Institute of Organic Chemistry (Russian Federation)

Results are presented from measurements of the parameters of high-temperature plasma in the Z-pinch neck formed when a current of up to 3.5 MA flows through a low-density polymer load. To enhance the effect of energy concentration, a deuterated microporous polyethylene neck with a mass density of 100 mg/cm{sup 3} and diameter of 1–1.3 mm was placed in the central part of the load. During the discharge current pulse, short-lived local hot plasma spots with typical dimensions of about 200–300 μm formed in the neck region. Their formation was accompanied by the generation of soft X-ray pulses with photon energies of E > 0.8 keV and durations of 3–4 ns. The plasma electron temperature in the vicinity of the hot spot was measured from the vacuum UV emission spectra of the iron diagnostic admixture and was found to be about 200–400 eV. The appearance of hot plasma spots was also accompanied by neutron emission with the maximum yield of 3 × 10{sup 10} neutrons/shot. The neutron energy spectra were studied by means of the time-of-flight method and were found to be anisotropic with respect to the direction of the discharge current.

• OSTI ID: 22614140
• Journal Information: Plasma Physics Reports, Vol. 42, Issue 4; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANISOTROPY
CURRENTS
DENSITY
ELECTRIC DISCHARGES
ELECTRON TEMPERATURE
EMISSION SPECTRA
ENERGY DENSITY
ENERGY SPECTRA
HOT PLASMA
HOT SPOTS
KEV RANGE
NEUTRON EMISSION
NEUTRONS
PHOTONS
POLYETHYLENES
PULSES
SOFT X RADIATION
TIME-OF-FLIGHT METHOD
ULTRAVIOLET SPECTRA