NDLI: High energy-density plasma dynamics in plasma-filled rod-pinch diodes

Content Provider	IEEE Xplore Digital Library
Author	Weber, B.V. Apruzese, J.P. Mosher, D. Phipps, D.G. Schumer, J.W. Stephanakis, S.J.
Copyright Year	2013
Description	Author affiliation: Plasma Phys. Div., Naval Res. Lab., Washington, DC, USA (Weber, B.V.; Apruzese, J.P.; Mosher, D.; Phipps, D.G.; Schumer, J.W.; Stephanakis, S.J.)
Abstract	High energy-density plasma (HEDP) is created using a plasma-filled rod pinch diode $(PFRP)^{1}$ on the Gamble II generator (2 MV, 0.7 MA, 60 ns with a matched 3-Ohm load). The PFRP consists of a 1-mm diameter tungsten rod that extends 25 mm through a hole in a grounded cathode plate. Plasma is injected from six cable guns 1 microsecond prior to firing the generator. The plasma acts like a short circuit while the current increases to 600 kA, then the PFRP impedance increases and a ~2 MeV, 500 kA electron beam deposits energy at the end of the rod. When the rod is tapered to a sharp point, the energy density is estimated to reach 2.4 $MJ/cm^{3}$ in about 10 ns before rapid expansion decreases the energy $density.^{1}$ The work reported here is aimed at measuring the plasma temperature and density, and inferring the pressure from the early-time dynamics of the expanding plasma.
Starting Page	1
Ending Page	1
File Size	115125
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6633310
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	P-i-n diodes Plasma measurements Temperature measurement Electron beams Plasma temperature Generators
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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