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

Abstract

In this paper, 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. Finally, 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.

Authors:
 [1]; ORCiD logo [1];  [2]; ORCiD logo [3];  [3];  [3];  [3]
+ Show Author Affiliations
  1. Cornell Univ., Ithaca, NY (United States); P. N. Lebedev Inst., Moscow (Russian Federation)
  2. P. N. Lebedev Inst., Moscow (Russian Federation)
  3. Imperial College, London (United Kingdom). Blackett Lab.
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States); Imperial College, London (United Kingdom)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); First Light Fusion (United Kingdom); AWE Aldermaston plc (United Kingdom)
OSTI Identifier:
1468395
Alternate Identifier(s):
OSTI ID: 1467946
Grant/Contract Number:  
NA0003764
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 124; Journal Issue: 8; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Bland, S. N., Lall, D., Chaturvedi, N., and Georgakis, A. X-pinch X-ray emission on a portable low-current, fast rise-time generator. United States: N. p., 2018. Web. doi:10.1063/1.5032112.
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Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Bland, S. N., Lall, D., Chaturvedi, N., & Georgakis, A. X-pinch X-ray emission on a portable low-current, fast rise-time generator. United States. https://doi.org/10.1063/1.5032112
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Shelkovenko, T. A., Pikuz, S. A., Tilikin, I. N., Bland, S. N., Lall, D., Chaturvedi, N., and Georgakis, A. Fri . "X-pinch X-ray emission on a portable low-current, fast rise-time generator". United States. https://doi.org/10.1063/1.5032112. https://www.osti.gov/servlets/purl/1468395.
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@article{osti_1468395,
title = {X-pinch X-ray emission on a portable low-current, fast rise-time generator},
author = {Shelkovenko, T. A. and Pikuz, S. A. and Tilikin, I. N. and Bland, S. N. and Lall, D. and Chaturvedi, N. and Georgakis, A.},
abstractNote = {In this paper, 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. Finally, 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.},
doi = {10.1063/1.5032112},
journal = {Journal of Applied Physics},
number = 8,
volume = 124,
place = {United States},
year = {Fri Aug 31 00:00:00 EDT 2018},
month = {Fri Aug 31 00:00:00 EDT 2018}
}
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https://doi.org/10.1063/1.5032112
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Works referenced in this record:

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journal, March 2015

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X-pinch source of subnanosecond soft X-ray pulses based on small-sized low-inductance current generator
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    Works referencing / citing this record:

    Evolution of X-pinch loads for pulsed power generators with current from 50 to 5000 kA
    journal, November 2018

    • Shelkovenko, T. A.; Pikuz, S. A.; Tilikin, I. N.
    • Matter and Radiation at Extremes, Vol. 3, Issue 6
    • DOI: 10.1016/j.mre.2018.09.001
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