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The impact of low-mode symmetry on inertial fusion energy output in the burning plasma state.

ABSTRACT: Indirect Drive Inertial Confinement Fusion Experiments on the National Ignition Facility (NIF) have achieved a burning plasma state with neutron yields exceeding 170 kJ, roughly 3 times the prior record and a necessary stage for igniting plasmas. The results are achieved despite multiple sources of degradations that lead to high variability in performance. Results shown here, for the first time, include an empirical correction factor for mode-2 asymmetry in the burning plasma regime in addition to previously determined corrections for radiative mix and mode-1. Analysis shows that including these three corrections alone accounts for the measured fusion performance variability in the two highest performing experimental campaigns on the NIF to within error. Here we quantify the performance sensitivity to mode-2 symmetry in the burning plasma regime and apply the results, in the form of an empirical correction to a 1D performance model. Furthermore, we find the sensitivity to mode-2 determined through a series of integrated 2D radiation hydrodynamic simulations to be consistent with the experimentally determined sensitivity only when including alpha-heating.

SUBMITTER: Ralph JE 

PROVIDER: S-EPMC10998902 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature

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The impact of low-mode symmetry on inertial fusion energy output in the burning plasma state.

Ralph J E JE   Ross J S JS   Zylstra A B AB   Kritcher A L AL   Robey H F HF   Young C V CV   Hurricane O A OA   Pak A A   Callahan D A DA   Baker K L KL   Casey D T DT   Döppner T T   Divol L L   Hohenberger M M   Pape S Le SL   Patel P K PK   Tommasini R R   Ali S J SJ   Amendt P A PA   Atherton L J LJ   Bachmann B B   Bailey D D   Benedetti L R LR   Berzak Hopkins L L   Betti R R   Bhandarkar S D SD   Biener J J   Bionta R M RM   Birge N W NW   Bond E J EJ   Bradley D K DK   Braun T T   Briggs T M TM   Bruhn M W MW   Celliers P M PM   Chang B B   Chapman T T   Chen H H   Choate C C   Christopherson A R AR   Clark D S DS   Crippen J W JW   Dewald E L EL   Dittrich T R TR   Edwards M J MJ   Farmer W A WA   Field J E JE   Fittinghoff D D   Frenje J J   Gaffney J J   Gatu Johnson M M   Glenzer S H SH   Grim G P GP   Haan S S   Hahn K D KD   Hall G N GN   Hammel B A BA   Harte J J   Hartouni E E   Heebner J E JE   Hernandez V J VJ   Herrmann H W HW   Herrmann M C MC   Hinkel D E DE   Ho D D DD   Holder J P JP   Hsing W W WW   Huang H H   Humbird K D KD   Izumi N N   Jarrott L C LC   Jeet J J   Jones O O   Kerbel G D GD   Kerr S M SM   Khan S F SF   Kilkenny J J   Kim Y Y   Geppert-Kleinrath H H   Geppert-Kleinrath V V   Kong C C   Koning J M JM   Kroll J J JJ   Kruse M K G MKG   Kustowski B B   Landen O L OL   Langer S S   Larson D D   Lemos N C NC   Lindl J D JD   Ma T T   MacDonald M J MJ   MacGowan B J BJ   Mackinnon A J AJ   MacLaren S A SA   MacPhee A G AG   Marinak M M MM   Mariscal D A DA   Marley E V EV   Masse L L   Meaney K D KD   Meezan N B NB   Michel P A PA   Millot M M   Milovich J L JL   Moody J D JD   Moore A S AS   Morton J W JW   Murphy T J TJ   Newman K K   Di Nicola J-M G JG   Nikroo A A   Nora R R   Patel M V MV   Pelz L J LJ   Peterson J L JL   Ping Y Y   Pollock B B BB   Ratledge M M   Rice N G NG   Rinderknecht H G HG   Rosen M M   Rubery M S MS   Salmonson J D JD   Sater J J   Schiaffino S S   Schlossberg D J DJ   Schneider M B MB   Schroeder C R CR   Scott H A HA   Sepke S M SM   Sequoia K K   Sherlock M W MW   Shin S S   Smalyuk V A VA   Spears B K BK   Springer P T PT   Stadermann M M   Stoupin S S   Strozzi D J DJ   Suter L J LJ   Thomas C A CA   Town R P J RPJ   Trosseille C C   Tubman E R ER   Volegov P L PL   Weber C R CR   Widmann K K   Wild C C   Wilde C H CH   Van Wonterghem B M BM   Woods D T DT   Woodworth B N BN   Yamaguchi M M   Yang S T ST   Zimmerman G B GB  

Nature communications 20240406 1

Indirect Drive Inertial Confinement Fusion Experiments on the National Ignition Facility (NIF) have achieved a burning plasma state with neutron yields exceeding 170 kJ, roughly 3 times the prior record and a necessary stage for igniting plasmas. The results are achieved despite multiple sources of degradations that lead to high variability in performance. Results shown here, for the first time, include an empirical correction factor for mode-2 asymmetry in the burning plasma regime in addition  ...[more]

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