The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited)

Kabadi, N.; Adrian, P.; Stoeckl, C.; Sorce, A.; Sio, H. W.; Bedzyk, M.; Evans, T.; Ivancic, S.; Katz, J.; Knauer, J.; Pearcy, J.; Weiner, D.; Betti, R.; Birkel, A.; Cao, D.; Johnson, M. Gatu; Regan, S. P.; Petrasso, R. D.; Frenje, J.

doi:10.1063/5.0101648

Title: The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited)

Abstract

Electron-temperature (T_e) measurements in implosions provide valuable diagnostic information, as T_e is negligibly affected by residual flows and other non-thermal effects unlike ion-temperature inferred from a fusion product spectrum. In OMEGA cryogenic implosions, measurement of T_e(t) can be used to investigate effects related to time-resolved hot-spot energy balance. The newly implemented phase-2 Particle X-ray Temporal Diagnostic (PXTD) utilizes four fast-rise (~15 ps) scintillator-channels with distinct x-ray filtering. Titanium and stepped aluminum filtering were chosen to maximize detector sensitivity in the 10–20 keV range, as it has been shown that these x rays have similar density and temperature weighting to the emitted deuterium–tritium fusion neutrons (DTn) from OMEGA Cryo-DT implosions. High quality data have been collected from warm implosions at OMEGA. These data have been used to infer spatially integrated T_e(t) with <10% uncertainty at peak emission. Nuclear and x-ray emission histories are measured with 10 ps relative timing uncertainty for x rays and DTn and 12 ps for x rays and deuterium-³He protons (D³Hep). A future upgrade to the system will enable spatially integrated T_e(t) with 40 ps time-resolution from cryogenic DT implosions.

Authors:

^[1];

^[2]; Sorce, A. ^[2];

^[3]; Bedzyk, M. ^[2];

^[2];

^[2]; Knauer, J. ^[2];

^[1]; Weiner, D. ^[2]; Betti, R. ^[2];

^[1]; Cao, D. ^[2];

^[1];

^[2];

^[1];

^[1]

Massachusetts Institute of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
University of Rochester, NY (United States). Laboratory for Laser Energetics
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Publication Date:: Wed Oct 26 00:00:00 EDT 2022

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1901999

Report Number(s):: LLNL-JRNL-835826
Journal ID: ISSN 0034-6748; 1054606; TRN: US2311156

Grant/Contract Number:: AC52-07NA27344; NA0003868; NA0003938

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 93; Journal Issue: 10; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Kabadi, N., Adrian, P., Stoeckl, C., Sorce, A., Sio, H. W., Bedzyk, M., Evans, T., Ivancic, S., Katz, J., Knauer, J., Pearcy, J., Weiner, D., Betti, R., Birkel, A., Cao, D., Johnson, M. Gatu, Regan, S. P., Petrasso, R. D., and Frenje, J. The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited).  United States: N. p., 2022. 
Web.  doi:10.1063/5.0101648.

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                    Kabadi, N., Adrian, P., Stoeckl, C., Sorce, A., Sio, H. W., Bedzyk, M., Evans, T., Ivancic, S., Katz, J., Knauer, J., Pearcy, J., Weiner, D., Betti, R., Birkel, A., Cao, D., Johnson, M. Gatu, Regan, S. P., Petrasso, R. D., & Frenje, J. The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited).  United States.  https://doi.org/10.1063/5.0101648

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                    Kabadi, N., Adrian, P., Stoeckl, C., Sorce, A., Sio, H. W., Bedzyk, M., Evans, T., Ivancic, S., Katz, J., Knauer, J., Pearcy, J., Weiner, D., Betti, R., Birkel, A., Cao, D., Johnson, M. Gatu, Regan, S. P., Petrasso, R. D., and Frenje, J. Wed .  
"The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited)".  United States.  https://doi.org/10.1063/5.0101648.  https://www.osti.gov/servlets/purl/1901999.

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@article{osti_1901999,

  title        = {The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited)},

  author       = {Kabadi, N. and Adrian, P. and Stoeckl, C. and Sorce, A. and Sio, H. W. and Bedzyk, M. and Evans, T. and Ivancic, S. and Katz, J. and Knauer, J. and Pearcy, J. and Weiner, D. and Betti, R. and Birkel, A. and Cao, D. and Johnson, M. Gatu and Regan, S. P. and Petrasso, R. D. and Frenje, J.},

  abstractNote = {Electron-temperature (Te) measurements in implosions provide valuable diagnostic information, as Te is negligibly affected by residual flows and other non-thermal effects unlike ion-temperature inferred from a fusion product spectrum. In OMEGA cryogenic implosions, measurement of Te(t) can be used to investigate effects related to time-resolved hot-spot energy balance. The newly implemented phase-2 Particle X-ray Temporal Diagnostic (PXTD) utilizes four fast-rise (~15 ps) scintillator-channels with distinct x-ray filtering. Titanium and stepped aluminum filtering were chosen to maximize detector sensitivity in the 10–20 keV range, as it has been shown that these x rays have similar density and temperature weighting to the emitted deuterium–tritium fusion neutrons (DTn) from OMEGA Cryo-DT implosions. High quality data have been collected from warm implosions at OMEGA. These data have been used to infer spatially integrated Te(t) with <10% uncertainty at peak emission. Nuclear and x-ray emission histories are measured with 10 ps relative timing uncertainty for x rays and DTn and 12 ps for x rays and deuterium-3He protons (D3Hep). A future upgrade to the system will enable spatially integrated Te(t) with 40 ps time-resolution from cryogenic DT implosions.},

  doi          = {10.1063/5.0101648},

  journal      = {Review of Scientific Instruments},

  number       = 10,

  volume       = 93,

  place        = {United States},

  year         = {Wed Oct 26 00:00:00 EDT 2022},

  month        = {Wed Oct 26 00:00:00 EDT 2022}

}

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Title: The phase-2 particle x-ray temporal diagnostic for simultaneous measurement of multiple x-ray and nuclear emission histories from OMEGA implosions (invited)

Abstract

Citation Formats

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