The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the present research, plasma jets form from Joule heating and ablation of a radial foil (∼15 μm thin disk) using a pulsed power generator (COBRA) with 1 MA peak current and 100 ns rise time. We study the effects on jet dynamics resulting from varying an applied uniform axial magnetic field (Bz) from 0 to 1.8 T. We empirically observe a disruption of the plasma jet collimation. The critical Bz for...
In the past, we have produced stable z-pinch implosions with an outer Ne shell imploding on an inner Ar (Ne-on-Ar) gas puff load. Using a similar mass density profile to the Ne-on-Ar experiments, we observed that Ar-on-Ne implosions were not stable. In this paper, we present the investigations of the Ne-on-Ar and Ar-on-Ne implosion dynamics with various mass density profiles. The experiments are conducted...
Radiative losses are known to play an important role in the development of hydrodynamic instabilities in many astrophysical (Core-collapse supernovae; HH objects) and laboratory (Inertial confinement fusion) environments. The fielding of triple-annular gas-puff valves on university level pulsed-power generators [1][2] enables study of these instabilities in carefully controlled environments, for inviscid...
A hybrid -pinch (HXP) configuration consisting of solid conical electrodes connected by a wire as the load of a pulsed power generator has been tested on four different generators with currents varying from 200 kA to 1.2 MA and with rise times ranging from 50 to 170 ns. Wires of different materials, diameters ranging from 25 to 200 , and lengths from 0.5 to 3 mm were loaded through holes...
A hybrid X-pinch configuration consisting of solid conical electrodes connected by a wire was first tested on the 45 ns rise time, 500 kA peak current XP pulsed power generator1. In more recent work the hybrid X-pinch was studied on generators with peak currents from 250 kA to 1.2 MA and current rise time from 45 ns to 170 ns. In all experiments the hybrid pinches have the same 60° conical electrodes...
Functional simulators find widespread use as sub-systems within microarchitectural simulators. The speed of functional simulators is strongly influenced by the implementation style of the functional simulator, e.g. interpreted vs. binary-translated simulation. Speed is also strongly influenced by the level of detail of the interface the functional simulator presents to the rest of the timing simulator...
Summary form only given. A standard X pinch consists of two or more fine wires that cross at a single point as the load of a 200-500 kA pulsed power generator. At the MA current level, multi-wire, multilayer and solid conical X pinches have been proposed and tested. To simplify the X pinch load while retaining the favorable properties of the fine wire loads achieved at the 200-500 kA level, a hybrid...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.