The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- General Atomics, San Diego, CA (United States)
- TMC2 Innovations LLC, Murrieta, CA (United States)
- Kentech Instruments Ltd., Howbery Park, Wallingford, Oxfordshire (United Kingdom)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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.
- Research Organization:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0001944; FC02-04ER54789; AC52-07NA27344
- OSTI ID:
- 1477184
- Alternate ID(s):
- OSTI ID: 1476688; OSTI ID: 1513107
- Report Number(s):
- 2017-268,1440; LLNL-JRNL-754192; 2017-268, 1440, 2398
- Journal Information:
- Review of Scientific Instruments, Vol. 89, Issue 10; Conference: 22nd Topical Conference on High Temperature Plasma Diagnostics, San Diego, CA, 16-19 April 2018; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | October 2018 |
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journal | February 2020 |
The National Direct-Drive Inertial Confinement Fusion Program
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journal | December 2018 |
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