Results 251 to 260 of about 124,007 (302)

Current Investigations at Quenching Research Centre

Materials performance and characterization, 2014
Quenching Research Centre (QRC) has been established at the beginning of 2010 by the financial support for excellence of the Ministry of Science Education and Sport, of the Republic of Croatia. The main investigation and research possibilities and potentials of the QRC are: quenching in liquids or in a salt bath and cooling by high pressure gases. As a
Župan, Josip, Landek, Darko, Filetin, Tomislav, Liščić, Božidar   +3 more
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Quenching of the nuclear spin current

Nuclear Physics A, 1981
Abstract The retardation of recently measured magnetic multipole strength distributions (specifically M1 and M2) in heavy nuclei by inelastic electron electron scattering is attributed mainly to a mesonic renormalization of the nuclear spin current.
W. Knüpfer, M. Dillig, A. Richter
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Current quenching in the pseudospark

Applied Physics Letters, 1991
A study of current quenching in the pseudospark is presented. Current quenching during the conductive phase limits peak conduction current in certain thyratron switches. The quenching phenomenon also occurs in the pseudospark. However, a remarkable feature is that current quenching is observed only below currents of ≊ 2–3 kA, near the onset of ...
W. Hartmann, G. F. Kirkman, M. A. Gundersen   +2 more
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Current distribution in multifilamentary superconductors and their quench current degradation

IEEE Transactions on Magnetics, 1994
When the thickness of the saturated region where the current density reaches the mean critical current density is larger than some threshold value, flux jump occurs. In multiply-twisted cables, such as ones for AC use, or in complicated magnet systems, such as ones for fusion devices, multifilamentary superconductors are exposed to the longitudinal ...
N. Amemiya, K. Inaho, H. Ishigami, O. Tsukamoto, I. Hlasnik   +4 more
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Characterization of plasma current quench at JET

Plasma Physics and Controlled Fusion, 2004
Eddy currents generated during the fastest disruption current decays represent the most severe design condition for medium and small size in-vessel components of most tokamaks. Best-fit linear and instantaneous plasma current quench rates have been extracted for a set of recent JET disruptions. Contrary to expectations, the current quench rate spectrum
Riccardo, V., Barabaschi, P., Sugihara, M.   +2 more
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Critical currents in liquid-quenched Nb3Al

Journal of Applied Physics, 1977
Critical current densities of over 1.8×106 A/cm2 at 4.2 °K and 150 kG have been achieved in Nb3Al tapes rapidly quenched from the liquid state at rates of 105–106 °C/sec. The superconducting transition temperature is about 16 °K, indicating a relatively high degree of order, and increases to 18.4 °K upon annealing at 750 °C. The observed microstructure
K. Lo, J. Bevk, D. Turnbull
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Quench characteristics of HTS current lead

2013 4th International Youth Conference on Energy (IYCE), 2013
The studies on the high temperature superconducting(HTS) current lead for superconducting magnets are actively underway with rapid advancement in HTS conductor technology recently. HTS current lead play a role to connect the external power supply with superconducting magnet and to block conduction heat invasion from room temperature.
J. H. Bae, B.YL. Eom
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Current quenching phenomenon in the pseudospark discharge

IEEE Conference Record - Abstracts. PPPS-2001 Pulsed Power Plasma Science 2001. 28th IEEE International Conference on Plasma Science and 13th IEEE International Pulsed Power Conference (Cat. No.01CH37255), 2002
Summary form only given, as follows. The quenching of a high pulsed current is a typical phenomenon for different types of low pressure and vacuum discharges, the pseudospark discharge included. One of the interpretations of this phenomenon is based on the supposition that the quenching is due to magnetic compression of the plasma column, similar to ...
Y.D. Korolev, I.A. Shemyakin, O.B. Frants, K. Frank, O. Bilwatsch, M. Iberler, J. Urban   +6 more
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The softening of current quenches in JT-60U

Nuclear Fusion, 1993
Current quenches caused by density limit disruptions have been investigated in JT-60U divertor plasmas in order to develop general methods of reducing the current decay rate and of suppressing the generation of runaway electrons. The reduction of the impurity influxes at an energy quench and the direct neutral beam (NB) heating of the plasma core ...
R Yoshino, Y Neyatani, N Hosogane, S.W Wolfe, M Matsukawa, H Ninomiya   +5 more
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Current densities and quench currents in laboratory 50 Hz magnet

Cryogenics, 1992
Abstract The aim of this work was to develop a superconducting laboratory magnet system producing an AC magnetic field up to 50 Hz superimposed on the bias DC magnetic field. Such a system is required for the studies of some properties of the both conventional and high T c superconductors. The minimum desired parameters of the system are: • - AC
M Polák, M Majoroš, J Pitel, J Kokavec, Ľ Krempaský, H Fikis, G Hilscher, H Kirchmayr   +7 more
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