Explanipedia

High velocity outflows along the axis of pulsed power driven rod z-pinches Open

D. Yanuka, S. Theocharous, J. P. Chittenden, S. N. Bland · 2020

We report on initial observations of high velocity outflows from the ends of a rod compressed using pulsed power. 1 mm and 2 mm diameter copper rods were placed in a water bath and driven by ∼0.6 MA currents with rise times of ∼700 ns. Las…

Pulsed power driven cylindrical wire array explosions in different media Open

D. Yanuka, S. Theocharous, S. N. Bland · 2019

Physics Materials science Chemistry

Cylindrical copper wire array explosions were carried out in de-ionized water, sodium polytungstate solution, nitromethane, and polyester in order to obtain high energy density conditions in the vicinity of implosion using the generated co…

X-ray radiography of the overheating instability in underwater electrical explosions of wires Open

D. Yanuka, A. Rososhek, S. Theocharous, S. N. Bland, Ya. E. Krasik , et al. · 2019

Physics Materials science Chemistry

We present the measurements of the development of striation like instabilities during the electrical driven explosions of wires in a water bath. In vacuum based wire explosion experiments, such instabilities have long been known. However, …

Synchrotron based X-ray radiography of convergent shock waves driven by underwater electrical explosion of a cylindrical wire array Open

D. Yanuka, S. Theocharous, S. Efimov, S. N. Bland, A. Rososhek , et al. · 2019

Physics Geology Medicine

We present X-ray radiography images showing the propagation of shock waves generated by electrical explosion of a cylindrical arrangement of wires in water driven by pulsed power. In previous experiments [S. N. Bland et al., Phys. Plasmas …

Use of synchrotron-based radiography to diagnose pulsed power driven wire explosion experiments Open

S. Theocharous, S. N. Bland, D. Yanuka, A. Rososhek, Margie P. Olbinado , et al. · 2019

Materials science Physics Medicine

We describe the first use of synchrotron radiation to probe pulsed power driven high energy density physics experiments. Multi-frame x-ray radiography with interframe spacing of 704 ns and temporal resolution of <100 ps was used to diag…

Multi frame synchrotron radiography of pulsed power driven underwater single wire explosions Open

D. Yanuka, A. Rososhek, S. Theocharous, S. N. Bland, Ya. E. Krasik , et al. · 2018

Physics Materials science Geology

We present the first use of synchrotron-based phase contrast radiography to study pulsed-power driven high energy density physics experiments. Underwater electrical wire explosions have become of interest to the wider physics community due…

Generation of highly symmetric, cylindrically convergent shockwaves in water Open

S. N. Bland, Ya. E. Krasik, D. Yanuka, Rod Gardner, J A Macdonald , et al. · 2017

Physics

We report on pulsed power driven, exploding copper wire array experiments conducted to generate cylindrical convergent shockwaves in water employing μs risetime currents >550 kA in amplitude and with stored energies of >15 kJ—a subst…

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