Observations and properties of the first laboratory fusion experiment to exceed a target gain of unity

Pak, A.; Zylstra, A. B.; Baker, K. L.; Casey, D. T.; Dewald, E.; Divol, L.; Hohenberger, M.; Moore, A. S.; Ralph, J. E.; Schlossberg, D. J.; Tommasini, R.; Aybar, N.; Bachmann, B.; Bionta, R. M.; Fittinghoff, D.; Gatu Johnson, M.; Geppert Kleinrath, H.; Geppert Kleinrath, V.; Hahn, K. D.; Rubery, M. S.; Landen, O. L.; Moody, J. D.; Aghaian, L.; Allen, A.; Baxamusa, S. H.; Bhandarkar, S. D.; Biener, J.; Birge, N. W.; Braun, T.; Briggs, T. M.; Choate, C.; Clark, D. S.; Crippen, J. W.; Danly, C.; Döppner, T.; Durocher, M.; Erickson, M.; Fehrenbach, T.; Freeman, M.; Havre, M.; Hayes, S.; Hilsabeck, T.; Holder, J. P.; Humbird, K. D.; Hurricane, O. A.; Izumi, N.; Kerr, S. M.; Khan, S. F.; Kim, Y. H.; Kong, C.; Jeet, J.; Kozioziemski, B.; Kritcher, A. L.; Lamb, K. M.; Lemos, N. C.; MacGowan, B. J.; Mackinnon, A. J.; MacPhee, A. G.; Marley, E. V.; Meaney, K.; Millot, M.; Di Nicola, J.-M. G.; Nikroo, A.; Nora, R.; Ratledge, M.; Ross, J. S.; Shin, S. J.; Smalyuk, V. A.; Stadermann, M.; Stoupin, S.; Suratwala, T.; Trosseille, C.; Van Wonterghem, B.; Weber, C. R.; Wild, C.; Wilde, C.; Wooddy, P. T.; Woodworth, B. N.; Young, C. V.

doi:10.1103/physreve.109.025203

Title: Observations and properties of the first laboratory fusion experiment to exceed a target gain of unity

Journal Article · Mon Feb 05 00:00:00 UTC 2024 · Physical Review. E

DOI: https://doi.org/10.1103/physreve.109.025203 · OSTI ID:2377242

Pak, A. ^[1]; Zylstra, A. B.; Baker, K. L.; Casey, D. T.; Dewald, E.; Divol, L.; Hohenberger, M.; Moore, A. S.; Ralph, J. E.; Schlossberg, D. J.; Tommasini, R.; Aybar, N.; Bachmann, B.; Bionta, R. M.; Fittinghoff, D.; Gatu Johnson, M.; Geppert Kleinrath, H.; Geppert Kleinrath, V.; Hahn, K. D.; Rubery, M. S. more »

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); et al.

An indirect-drive inertial fusion experiment on the National Ignition Facility was driven using 2.05 MJ of laser light at a wavelength of 351 nm and produced 3.1±0.16 MJ of total fusion yield, producing a target gain G=1.5±0.1 exceeding unity for the first time in a laboratory experiment [Phys. Rev. E 109, 025204 (2024)]. Herein we describe the experimental evidence for the increased drive on the capsule using additional laser energy and control over known degradation mechanisms, which are critical to achieving high performance. Further, improved fuel compression relative to previous megajoule-yield experiments is observed. Novel signatures of the ignition and burn propagation to high yield can now be studied in the laboratory for the first time.

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

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 2377242

Report Number(s):: LLNL--JRNL-856035; 1084944

Journal Information:: Physical Review. E, Journal Name: Physical Review. E Journal Issue: 2 Vol. 109; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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