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X-pinch X-ray emission on a portable low-current, fast rise-time generator

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Title: X-pinch X-ray emission on a portable low-current, fast rise-time generator
Authors: Shelkovenko, TA
Pikuz, SA
Tilikin, IN
Bland, SN
Lall, D
Chaturvedi, N
Georgakis, A
Item Type: Journal Article
Abstract: We report on experiments exploring X-ray emission from an X-pinch driven by a small Marx-waterline generator supplying 50 kA with a risetime of 50 ns and a peak voltage of ∼250 kV. Both standard crossed wire loads and hybrid loads utilizing conical metal electrodes with a single short wire in between them were studied, and in both cases reliable modes of operation were obtained for X-ray radiography. Soft (few keV) and Hard (>5 keV) X-ray emission characteristics were observed. With standard X-pinches, soft radiation emanated from a small hot spot about 3 μm in size, along with hard radiation from a ∼200 μm region close to this hot spot. With hybrid X-pinches, the hot spot was <7 μm in size. There was a clear correlation between the soft and hard X-ray emission—pinches that produced intense soft X-ray emission from a small hot spot also produced the most intense, localized hard X-ray emission.
Issue Date: 28-Aug-2018
Date of Acceptance: 6-Aug-2018
URI: http://hdl.handle.net/10044/1/64178
DOI: https://dx.doi.org/10.1063/1.5032112
ISSN: 0021-8979
Publisher: AIP Publishing
Journal / Book Title: Journal of Applied Physics
Volume: 124
Issue: 8
Copyright Statement: © 2018 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics, Vol. 124, Iss. 8, and may be found at https://dx.doi.org/10.1063/1.5032112
Keywords: Science & Technology
Physical Sciences
Physics, Applied
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Applied Physics
Publication Status: Published
Article Number: 083303
Online Publication Date: 2018-08-31
Appears in Collections:Physics
Plasma Physics
Faculty of Natural Sciences