Article

Demonstration of ignition radiation temperatures in indirect-drive inertial confinement fusion hohlraums.

S H Glenzer, B J MacGowan, N B Meezan, P A Adams, J B Alfonso, E T Alger, Z Alherz, L F Alvarez, S S Alvarez, P V Amick, K S Andersson, S D Andrews, G J Antonini, P A Arnold, D P Atkinson, L Auyang, S G Azevedo, B N M Balaoing, J A Baltz, F Barbosa, G W Bardsley, D A Barker, A I Barnes, A Baron, R G Beeler, B V Beeman, L R Belk, J C Bell, P M Bell, R L Berger, M A Bergonia, L J Bernardez, L V Berzins, R C Bettenhausen, L Bezerides, S D Bhandarkar, C L Bishop, E J Bond, D R Bopp, J A Borgman, J R Bower, G A Bowers, M W Bowers, D T Boyle, D K Bradley, J L Bragg, J Braucht, D L Brinkerhoff, D F Browning, G K Brunton, S C Burkhart, S R Burns, K E Burns, B Burr, L M Burrows, R K Butlin, N J Cahayag, D A Callahan, P S Cardinale, R W Carey, J W Carlson, A D Casey, C Castro, J R Celeste, A Y Chakicherla, F W Chambers, C Chan, H Chandrasekaran, C Chang, R F Chapman, K Charron, Y Chen, M J Christensen, A J Churby, T J Clancy, B D Cline, L C Clowdus, D G Cocherell, F E Coffield, S J Cohen, R L Costa, J R Cox, G M Curnow, M J Dailey, P M Danforth, R Darbee, P S Datte, J A Davis, G A Deis, R D Demaret, E L Dewald, P Di Nicola, J M Di Nicola, L Divol, S Dixit, D B Dobson, T Doppner, J D Driscoll, J Dugorepec, J J Duncan, P C Dupuy, E G Dzenitis, M J Eckart, S L Edson, G J Edwards, M J Edwards, O D Edwards, P W Edwards, J C Ellefson, C H Ellerbee, G V Erbert, C M Estes, W J Fabyan, R N Fallejo, M Fedorov, B Felker, J T Fink, M D Finney, L F Finnie, M J Fischer, J M Fisher, B T Fishler, J W Florio, A Forsman, C B Foxworthy, R M Franks, T Frazier, G Frieder, T Fung, G N Gawinski, C R Gibson, E Giraldez, S M Glenn, B P Golick, H Gonzales, S A Gonzales, M J Gonzalez, K L Griffin, J Grippen, S M Gross, P H Gschweng, G Gururangan, K Gu, S W Haan, S R Hahn, B J Haid, J E Hamblen, B A Hammel, A V Hamza, D L Hardy, D R Hart, R G Hartley, C A Haynam, G M Heestand, M R Hermann, G L Hermes, D S Hey, R L Hibbard, D G Hicks, D E Hinkel, D L Hipple, J D Hitchcock, D L Hodtwalker, J P Holder, J 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Wonterghem, L J Atherton, E I Moses

Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
Physical Review Letters (impact factor: 7.37). 02/2011; 106(8):085004. pp.085004
Source: PubMed

ABSTRACT We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of T(RAD)=300 eV and a symmetric implosion to a 100 μm diameter hot core.

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Keywords

100 μm diameter hot core
 
192 ultraviolet laser beams
 
2.2 mm-diameter capsules
 
Cryogenic gas-filled hohlraums
 
hohlraums
 
ignition-scale inertial confinement fusion capsule implosions
 
National Ignition Facility