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Title: Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories

Abstract

Recent breakthroughs in the fabrication of small-radii Wolter optics for astrophysics allow high energy density facilities to consider such optics as novel x-ray diagnostics at photon energies of 15-50 keV. Recently, the Lawrence Livermore National Laboratory, Sandia National Laboratories (SNL), the Smithsonian Astrophysical Observatory, and the NASA Marshall Space Flight Center jointly developed and fabricated the first custom Wolter microscope for implementation in SNL’s Z machine with optimized sensitivity at 17.5 keV. To achieve spatial resolution of order 100-200 microns over a field of view of 5 × 5 × 5 mm 3 with high throughput and narrow energy bandpass, the geometry of the optic and its multilayer required careful design and optimization. While the geometry mainly influences resolution and the field of view of the diagnostic, the mirror coating determines the spectral response and throughput. Here in this paper, we outline the details of the design and fabrication process for the first multilayer-coated Wolter I optic for SNL’s Z machine (Z Wolter), including its W/Si multilayer, and present results of raytrace simulations completed to predict and verify the performance of the optic.

Authors:
 [1]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [2];  [3];  [2]; ORCiD logo [2];  [2];  [2];  [2]; ORCiD logo [4];  [4];  [4] more »;  [5];  [6];  [7] « less
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Sandia National Laboratories, Albuquerque, New Mexico 87123, USA
  4. Smithsonian Astrophysical Observatory, Cambridge, MA (United States)
  5. Univ. Space Research Association, Huntsville, AL (United States)
  6. Universities Space Research Association, Huntsville, Alabama 35805, USA
  7. NASA Marshall Space Flight Center (MSFC), Huntsville, AL (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1488787
Alternate Identifier(s):
OSTI ID: 1476125
Report Number(s):
LLNL-JRNL-750575
Journal ID: ISSN 0034-6748; 935859
Grant/Contract Number:  
AC52-07NA27344; NA0003525
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 89; Journal Issue: 10; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Vogel, J. K., Pivovaroff, M. J., Kozioziemski, B., Walton, C. C., Ayers, J., Bell, P., Bradley, D., Descalle, M. -A., Hau-Riege, S., Pickworth, L. A., Ampleford, D. J., Ball, C. R., Bourdon, C. J., Fein, J. R., Gard, P. D., Maurer, A., Wu, M., Ames, A., Bruni, R., Romaine, S., Kilaru, K., Roberts, O. J., and Ramsey, B. Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories. United States: N. p., 2018. Web. doi:10.1063/1.5038811.
Vogel, J. K., Pivovaroff, M. J., Kozioziemski, B., Walton, C. C., Ayers, J., Bell, P., Bradley, D., Descalle, M. -A., Hau-Riege, S., Pickworth, L. A., Ampleford, D. J., Ball, C. R., Bourdon, C. J., Fein, J. R., Gard, P. D., Maurer, A., Wu, M., Ames, A., Bruni, R., Romaine, S., Kilaru, K., Roberts, O. J., & Ramsey, B. Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories. United States. doi:10.1063/1.5038811.
Vogel, J. K., Pivovaroff, M. J., Kozioziemski, B., Walton, C. C., Ayers, J., Bell, P., Bradley, D., Descalle, M. -A., Hau-Riege, S., Pickworth, L. A., Ampleford, D. J., Ball, C. R., Bourdon, C. J., Fein, J. R., Gard, P. D., Maurer, A., Wu, M., Ames, A., Bruni, R., Romaine, S., Kilaru, K., Roberts, O. J., and Ramsey, B. Mon . "Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories". United States. doi:10.1063/1.5038811. https://www.osti.gov/servlets/purl/1488787.
@article{osti_1488787,
title = {Design and raytrace simulations of a multilayer-coated Wolter x-ray optic for the Z machine at Sandia National Laboratories},
author = {Vogel, J. K. and Pivovaroff, M. J. and Kozioziemski, B. and Walton, C. C. and Ayers, J. and Bell, P. and Bradley, D. and Descalle, M. -A. and Hau-Riege, S. and Pickworth, L. A. and Ampleford, D. J. and Ball, C. R. and Bourdon, C. J. and Fein, J. R. and Gard, P. D. and Maurer, A. and Wu, M. and Ames, A. and Bruni, R. and Romaine, S. and Kilaru, K. and Roberts, O. J. and Ramsey, B.},
abstractNote = {Recent breakthroughs in the fabrication of small-radii Wolter optics for astrophysics allow high energy density facilities to consider such optics as novel x-ray diagnostics at photon energies of 15-50 keV. Recently, the Lawrence Livermore National Laboratory, Sandia National Laboratories (SNL), the Smithsonian Astrophysical Observatory, and the NASA Marshall Space Flight Center jointly developed and fabricated the first custom Wolter microscope for implementation in SNL’s Z machine with optimized sensitivity at 17.5 keV. To achieve spatial resolution of order 100-200 microns over a field of view of 5 × 5 × 5 mm3 with high throughput and narrow energy bandpass, the geometry of the optic and its multilayer required careful design and optimization. While the geometry mainly influences resolution and the field of view of the diagnostic, the mirror coating determines the spectral response and throughput. Here in this paper, we outline the details of the design and fabrication process for the first multilayer-coated Wolter I optic for SNL’s Z machine (Z Wolter), including its W/Si multilayer, and present results of raytrace simulations completed to predict and verify the performance of the optic.},
doi = {10.1063/1.5038811},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {2018},
month = {10}
}

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