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Title: Demonstration of a Long Pulse X-ray Source at the National Ignition Facility

A long duration high fluence x-ray source has been developed at the National Ignition Facility (NIF). The target was a 14.4 mm tall, 4.1 mm diameter, epoxy walled, gas filled pipe. Approximately 1.34 MJ from the NIF laser was used to heat the mixture of (55:45) Kr:Xe at 1.2 atm (~5.59 mg/cm 3) to emit in a fairly isotropic radiant intensity of 400–600 GW/sr from the E photon = 3–7 keV spectral range for a duration of ≈ 14 ns. Lastly, the HYDRA simulated radiant intensities were in reasonable agreement with experiments but deviated at late times.
Authors:
 [1] ; ORCiD logo [2] ;  [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [3] ;  [1] ;  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. National Security Technologies, LLC, Livermore, CA (United States)
  3. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Report Number(s):
LLNL-JRNL-711937
Journal ID: ISSN 1070-664X; 839750
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 4; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1460934
Alternate Identifier(s):
OSTI ID: 1363697

May, M. J., Opachich, Y. P., Kemp, G. E., Colvin, J. D., Barrios, M. A., Widmann, K. W., Fournier, K. B., Hohenberger, M., Albert, F., and Regan, S. P.. Demonstration of a Long Pulse X-ray Source at the National Ignition Facility. United States: N. p., Web. doi:10.1063/1.4979172.
May, M. J., Opachich, Y. P., Kemp, G. E., Colvin, J. D., Barrios, M. A., Widmann, K. W., Fournier, K. B., Hohenberger, M., Albert, F., & Regan, S. P.. Demonstration of a Long Pulse X-ray Source at the National Ignition Facility. United States. doi:10.1063/1.4979172.
May, M. J., Opachich, Y. P., Kemp, G. E., Colvin, J. D., Barrios, M. A., Widmann, K. W., Fournier, K. B., Hohenberger, M., Albert, F., and Regan, S. P.. 2017. "Demonstration of a Long Pulse X-ray Source at the National Ignition Facility". United States. doi:10.1063/1.4979172. https://www.osti.gov/servlets/purl/1460934.
@article{osti_1460934,
title = {Demonstration of a Long Pulse X-ray Source at the National Ignition Facility},
author = {May, M. J. and Opachich, Y. P. and Kemp, G. E. and Colvin, J. D. and Barrios, M. A. and Widmann, K. W. and Fournier, K. B. and Hohenberger, M. and Albert, F. and Regan, S. P.},
abstractNote = {A long duration high fluence x-ray source has been developed at the National Ignition Facility (NIF). The target was a 14.4 mm tall, 4.1 mm diameter, epoxy walled, gas filled pipe. Approximately 1.34 MJ from the NIF laser was used to heat the mixture of (55:45) Kr:Xe at 1.2 atm (~5.59 mg/cm3) to emit in a fairly isotropic radiant intensity of 400–600 GW/sr from the Ephoton = 3–7 keV spectral range for a duration of ≈ 14 ns. Lastly, the HYDRA simulated radiant intensities were in reasonable agreement with experiments but deviated at late times.},
doi = {10.1063/1.4979172},
journal = {Physics of Plasmas},
number = 4,
volume = 24,
place = {United States},
year = {2017},
month = {3}
}