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Summary form given only. Z-pinch radiation source drivers such as Z and ZR must supply very high currents at moderate (by pulsed power standards) voltage. This in turn requires very low inductance feeds. Presently this is accomplished by adding several higher impedance drivers in parallel using a post-hole convolute current adder. Unfortunately, current addition results in localized magnetic nulls...
Summary form only given. The Z pulsed power driver at Sandia National Laboratories is used to develop high energy density Z-pinch X-ray sources for inertial confinement fusion research and radiation effects testing, and drive megabar pressures in material samples for equation of state studies. The pulsed power system is in the process of being replaced, improving reliability and increasing energy...
A study of the triggered plasma opening switch characteristics is in progress via an ion current collection diagnostic (ICCD) in addition to an offline apparatus. The ICCD will be used to explore the opening profile of the plasma opening switch. The design and fabrication of the diagnostic, as well as theoretical work to understand its functioning, and the initial measurements are presented. The ICCD...
The Z driver at Sandia National Laboratories delivers one to two megajoules of electromagnetic energy inside its ~10 cm radius final feed in 100 ns. The high current (~20 MA) at small diameter produces magnetic pressures well above yield strengths for metals. The metal conductors stay in place due to inertia long enough to deliver current to the load. Within milliseconds however, fragments of metal...
Summary form only given, as follows. Plasma opening switch (POS) experiments have been performed on the PBFA II to develop a switch which will provide voltage and power gain to an applied-<e1>B</e1> lithium ion diode. These experiments have successfully coupled power to electron and ion beam diodes using a magnetically-injected-plasma (MIP) POS. Carbon plasma with electron densities of...
Summary form only given. MITE is a power flow testbed that has been modified to conduct experiments in high-power plasma opening switch (POS) technology and apply this technology to inertial confinement fusion. The goal of the experiment is to develop a POS that conducts megampere currents for 300 ns, then opens in 5-10 ns. MITE/POS is an advanced power flow experiment that uses a magnetically insulated...
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