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Title: Spectral analysis of x-ray emission created by intense laser irradiation of copper materials

Abstract

We have measured the x-ray emission, primarily from K{sub {alpha}},K{sub {beta}}, and He{sub {alpha}} lines, of elemental copper foil and 'foam' targets irradiated with a mid-10{sup 16} W/cm{sup 2} laser pulse. The copper foam at 0.1 times solid density is observed to produce 50% greater He{sub {alpha}} line emission than copper foil, and the measured signal is well-fit by a sum of three synthetic spectra generated by the atomic physics code FLYCHK. Additionally, spectra from both targets reveal characteristic inner shell K{sub {alpha}} transitions from hot electron interaction with the bulk copper. However, only the larger-volume foam target produced significant K{sub {beta}} radiation, confirming a lower bulk temperature in the higher volume sample.

Authors:
; ;  [1];  [1]; ;  [2]
  1. Atmospheric, Oceanic, Space Science, University of Michigan, Ann Arbor, Michigan 48103 (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
Publication Date:
OSTI Identifier:
22093897
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC PHYSICS; COPPER; EMISSION; EMISSION SPECTRA; FOAMS; FOILS; INTERACTIONS; LASER RADIATION; MATERIALS; RADIATION EFFECTS; SOLIDS; X RADIATION; X-RAY SPECTRA

Citation Formats

Huntington, C. M., Kuranz, C. C., Drake, R. P., Malamud, G., Department of Physics, Nuclear Research Center - Negev, 84190 Beer-Sheva, Park, H. -S., and Maddox, B. R. Spectral analysis of x-ray emission created by intense laser irradiation of copper materials. United States: N. p., 2012. Web. doi:10.1063/1.4732181.
Huntington, C. M., Kuranz, C. C., Drake, R. P., Malamud, G., Department of Physics, Nuclear Research Center - Negev, 84190 Beer-Sheva, Park, H. -S., & Maddox, B. R. Spectral analysis of x-ray emission created by intense laser irradiation of copper materials. United States. https://doi.org/10.1063/1.4732181
Huntington, C. M., Kuranz, C. C., Drake, R. P., Malamud, G., Department of Physics, Nuclear Research Center - Negev, 84190 Beer-Sheva, Park, H. -S., and Maddox, B. R. Mon . "Spectral analysis of x-ray emission created by intense laser irradiation of copper materials". United States. https://doi.org/10.1063/1.4732181.
@article{osti_22093897,
title = {Spectral analysis of x-ray emission created by intense laser irradiation of copper materials},
author = {Huntington, C. M. and Kuranz, C. C. and Drake, R. P. and Malamud, G. and Department of Physics, Nuclear Research Center - Negev, 84190 Beer-Sheva and Park, H. -S. and Maddox, B. R.},
abstractNote = {We have measured the x-ray emission, primarily from K{sub {alpha}},K{sub {beta}}, and He{sub {alpha}} lines, of elemental copper foil and 'foam' targets irradiated with a mid-10{sup 16} W/cm{sup 2} laser pulse. The copper foam at 0.1 times solid density is observed to produce 50% greater He{sub {alpha}} line emission than copper foil, and the measured signal is well-fit by a sum of three synthetic spectra generated by the atomic physics code FLYCHK. Additionally, spectra from both targets reveal characteristic inner shell K{sub {alpha}} transitions from hot electron interaction with the bulk copper. However, only the larger-volume foam target produced significant K{sub {beta}} radiation, confirming a lower bulk temperature in the higher volume sample.},
doi = {10.1063/1.4732181},
url = {https://www.osti.gov/biblio/22093897}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 10,
volume = 83,
place = {United States},
year = {2012},
month = {10}
}