Time-resolved investigation of subnanosecond radiation from Al wire hybrid X pinches

Shelkovenko, T. A.; Pikuz, S. A.; Tilikin, I. N.; Elshafiey, A.; Hammer, D. A.

doi:10.1103/physreve.102.063208

Title: Time-resolved investigation of subnanosecond radiation from Al wire hybrid X pinches

Journal Article · Thu Dec 17 00:00:00 EST 2020 · Physical Review. E

DOI:https://doi.org/10.1103/physreve.102.063208· OSTI ID:1737351

Shelkovenko, T. A. ^[1];

^[1];

^[2]; Hammer, D. A. ^[2]

P. N. Lebedev Physical Inst., Moscow (Russia)
Cornell Univ., Ithaca, NY (United States)

K-shell x-ray spectra from Al wire hybrid X pinches have been studied using an x-ray streak camera with better than 0.1-ns time resolution together with a Focusing Spectrograph with Spatial Resolution (FSSR) spectrograph. High-intensity radiation with a continuumlike spectrum was observed in the subnanosecond initial phase of the x-ray pulse generated by the hybrid X pinch (HXP). Here, the absence of spectral lines in this phase and the extremely small x-ray source size indicates the importance of radiative processes in the final phase implosion dynamics. Plasma parameters in the following phases of the HXP were determined from analysis of the line intensities. Point-projection radiography together with a slit-step wedge camera and an FSSR spectrograph without time resolution were used to show the number of radiation sources, and to give information on the time-integrated photon energy spectrum.

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Research Organization:: Cornell Univ., Ithaca, NY (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003764

OSTI ID:: 1737351

Journal Information:: Physical Review. E, Vol. 102, Issue 6; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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