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Title: The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA

Abstract

We present that the single-line-of-sight, time-resolved x-ray imager (SLOS-TRXI) on OMEGA is one of a new generation of fast-gated x-ray cameras comprising an electron pulse-dilation imager and a nanosecond-gated, burst-mode, hybrid complementary metal-oxide semiconductor sensor. SLOS-TRXI images the core of imploded cryogenic deuterium–tritium shells in inertial confinement fusion experiments in the ~4- to 9-keV photon energy range with a pinhole imager onto a photocathode. The diagnostic is mounted on a fixed port almost perpendicular to a 16 channel, framing-camera–based, time-resolved Kirkpatrick–Baez microscope, providing a second time-gated line of sight for hot-spot imaging on OMEGA. SLOS-TRXI achieves ~40-ps temporal resolution and better than 10 μm spatial resolution. Finally, shots with neutron yields of up to 1 × 10 14 were taken without observed neutron-induced background signal. The implosion images from SLOS-TRXI show the evolution of the stagnating core.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1];  [1];  [2];  [2];  [2];  [2]; ORCiD logo [3]; ORCiD logo [4];  [4];  [5];  [5] more »;  [5];  [5];  [5];  [5]; ORCiD logo [5]; ORCiD logo [5];  [6];  [6];  [6];  [6];  [6];  [6] « less
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  2. General Atomics, San Diego, CA (United States)
  3. TMC2 Innovations LLC, Murrieta, CA (United States)
  4. Kentech Instruments Ltd., Howbery Park, Wallingford, Oxfordshire (United Kingdom)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1477184
Alternate Identifier(s):
OSTI ID: 1476688; OSTI ID: 1513107
Report Number(s):
2017-268,1440; LLNL-JRNL-754192
Journal ID: ISSN 0034-6748; 2017-268, 1440, 2398
Grant/Contract Number:  
NA0001944; FC02-04ER54789; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 89; Journal Issue: 10; Conference: 22nd Topical Conference on High Temperature Plasma Diagnostics, San Diego, CA, 16-19 April 2018; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Lasers

Citation Formats

Theobald, W., Sorce, C., Bedzyk, M., Ivancic, S. T., Marshall, F. J., Stoeckl, C., Shah, R. C., Lawrie, M., Regan, S. P., Sangster, T. C., Campbell, E. M., Hilsabeck, T. J., Englehorn, K., Kilkenny, J. D., Morris, D., Chung, T. M., Hares, J. D., Dymoke-Bradshaw, A. K. L., Bell, P., Celeste, J., Carpenter, A. C., Dayton, M., Bradley, D. K., Jackson, M. C., Pickworth, L., Nagel, S. R., Rochau, G., Porter, J., Sanchez, M., Claus, L., Robertson, G., and Looker, Q. The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA. United States: N. p., 2018. Web. doi:10.1063/1.5036767.
Theobald, W., Sorce, C., Bedzyk, M., Ivancic, S. T., Marshall, F. J., Stoeckl, C., Shah, R. C., Lawrie, M., Regan, S. P., Sangster, T. C., Campbell, E. M., Hilsabeck, T. J., Englehorn, K., Kilkenny, J. D., Morris, D., Chung, T. M., Hares, J. D., Dymoke-Bradshaw, A. K. L., Bell, P., Celeste, J., Carpenter, A. C., Dayton, M., Bradley, D. K., Jackson, M. C., Pickworth, L., Nagel, S. R., Rochau, G., Porter, J., Sanchez, M., Claus, L., Robertson, G., & Looker, Q. The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA. United States. doi:10.1063/1.5036767.
Theobald, W., Sorce, C., Bedzyk, M., Ivancic, S. T., Marshall, F. J., Stoeckl, C., Shah, R. C., Lawrie, M., Regan, S. P., Sangster, T. C., Campbell, E. M., Hilsabeck, T. J., Englehorn, K., Kilkenny, J. D., Morris, D., Chung, T. M., Hares, J. D., Dymoke-Bradshaw, A. K. L., Bell, P., Celeste, J., Carpenter, A. C., Dayton, M., Bradley, D. K., Jackson, M. C., Pickworth, L., Nagel, S. R., Rochau, G., Porter, J., Sanchez, M., Claus, L., Robertson, G., and Looker, Q. Mon . "The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA". United States. doi:10.1063/1.5036767. https://www.osti.gov/servlets/purl/1477184.
@article{osti_1477184,
title = {The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA},
author = {Theobald, W. and Sorce, C. and Bedzyk, M. and Ivancic, S. T. and Marshall, F. J. and Stoeckl, C. and Shah, R. C. and Lawrie, M. and Regan, S. P. and Sangster, T. C. and Campbell, E. M. and Hilsabeck, T. J. and Englehorn, K. and Kilkenny, J. D. and Morris, D. and Chung, T. M. and Hares, J. D. and Dymoke-Bradshaw, A. K. L. and Bell, P. and Celeste, J. and Carpenter, A. C. and Dayton, M. and Bradley, D. K. and Jackson, M. C. and Pickworth, L. and Nagel, S. R. and Rochau, G. and Porter, J. and Sanchez, M. and Claus, L. and Robertson, G. and Looker, Q.},
abstractNote = {We present that the single-line-of-sight, time-resolved x-ray imager (SLOS-TRXI) on OMEGA is one of a new generation of fast-gated x-ray cameras comprising an electron pulse-dilation imager and a nanosecond-gated, burst-mode, hybrid complementary metal-oxide semiconductor sensor. SLOS-TRXI images the core of imploded cryogenic deuterium–tritium shells in inertial confinement fusion experiments in the ~4- to 9-keV photon energy range with a pinhole imager onto a photocathode. The diagnostic is mounted on a fixed port almost perpendicular to a 16 channel, framing-camera–based, time-resolved Kirkpatrick–Baez microscope, providing a second time-gated line of sight for hot-spot imaging on OMEGA. SLOS-TRXI achieves ~40-ps temporal resolution and better than 10 μm spatial resolution. Finally, shots with neutron yields of up to 1 × 1014 were taken without observed neutron-induced background signal. The implosion images from SLOS-TRXI show the evolution of the stagnating core.},
doi = {10.1063/1.5036767},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {2018},
month = {10}
}

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Figures / Tables:

FIG. 1 FIG. 1: Schematic of the single-line-of sight, time-resolved x-ray imager on OMEGA in its initial configuration. A pinhole is used to image the x rays from the hot spot onto a photocathode. A pulse-dilation tube stretches the secondary electron pulse in time and forms an image of the hot spotmore » on a time-gated, solid-state detector (hCMOS). The pinhole will later be replaced with an advanced optic to provide improved spatial resolution.« less

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Works referenced in this record:

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.