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Title: Improving the off-axis spatial resolution and dynamic range of the NIF X-ray streak cameras (invited)

Abstract

Here, we report simulationsand experiments that demonstrate an increasein spatial resolution ofthe NIF core diagnostic x-ray streak camerasby a factor of two, especially off axis. A designwas achieved by usinga corrector electron optic to flatten the field curvature at the detector planeand corroborated by measurement. In addition, particle in cell simulations were performed to identify theregions in the streak camera that contribute most to space charge blurring. Our simulations provide a tool for convolving syntheticpre-shot spectra with the instrument functionso signal levels can be set to maximize dynamic range for the relevant part of the streak record.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2];  [3];  [1];  [4];  [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1];  [5];  [5]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Kentech Instruments Ltd, Oxfordshire (United Kingdom)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States). Dept. of Electrical and Computer Engineering
  4. AWE Aldermaston, Reading (United Kingdom)
  5. General Atomics, San Diego, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1281694
Report Number(s):
LLNL-CONF-694392
Journal ID: ISSN 0034-6748; RSINAK
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Conference: Presented at: HTPD 2016, Madison, WI, United States, Jun 05 - Jun 09, 2016; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; x-ray optics; electron optics; cameras; space charge effects; anodes

Citation Formats

MacPhee, A. G., Dymoke-Bradshaw, A. K. L., Hares, J. D., Hassett, J., Hatch, B. W., Meadowcroft, A. L., Bell, P. M., Bradley, D. K., Datte, P. S., Landen, O. L., Palmer, N. E., Piston, K. W., Rekow, V. V., Hilsabeck, T. J., and Kilkenny, J. D. Improving the off-axis spatial resolution and dynamic range of the NIF X-ray streak cameras (invited). United States: N. p., 2016. Web. doi:10.1063/1.4960376.
MacPhee, A. G., Dymoke-Bradshaw, A. K. L., Hares, J. D., Hassett, J., Hatch, B. W., Meadowcroft, A. L., Bell, P. M., Bradley, D. K., Datte, P. S., Landen, O. L., Palmer, N. E., Piston, K. W., Rekow, V. V., Hilsabeck, T. J., & Kilkenny, J. D. Improving the off-axis spatial resolution and dynamic range of the NIF X-ray streak cameras (invited). United States. doi:10.1063/1.4960376.
MacPhee, A. G., Dymoke-Bradshaw, A. K. L., Hares, J. D., Hassett, J., Hatch, B. W., Meadowcroft, A. L., Bell, P. M., Bradley, D. K., Datte, P. S., Landen, O. L., Palmer, N. E., Piston, K. W., Rekow, V. V., Hilsabeck, T. J., and Kilkenny, J. D. Mon . "Improving the off-axis spatial resolution and dynamic range of the NIF X-ray streak cameras (invited)". United States. doi:10.1063/1.4960376. https://www.osti.gov/servlets/purl/1281694.
@article{osti_1281694,
title = {Improving the off-axis spatial resolution and dynamic range of the NIF X-ray streak cameras (invited)},
author = {MacPhee, A. G. and Dymoke-Bradshaw, A. K. L. and Hares, J. D. and Hassett, J. and Hatch, B. W. and Meadowcroft, A. L. and Bell, P. M. and Bradley, D. K. and Datte, P. S. and Landen, O. L. and Palmer, N. E. and Piston, K. W. and Rekow, V. V. and Hilsabeck, T. J. and Kilkenny, J. D.},
abstractNote = {Here, we report simulationsand experiments that demonstrate an increasein spatial resolution ofthe NIF core diagnostic x-ray streak camerasby a factor of two, especially off axis. A designwas achieved by usinga corrector electron optic to flatten the field curvature at the detector planeand corroborated by measurement. In addition, particle in cell simulations were performed to identify theregions in the streak camera that contribute most to space charge blurring. Our simulations provide a tool for convolving syntheticpre-shot spectra with the instrument functionso signal levels can be set to maximize dynamic range for the relevant part of the streak record.},
doi = {10.1063/1.4960376},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {Mon Aug 08 00:00:00 EDT 2016},
month = {Mon Aug 08 00:00:00 EDT 2016}
}

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