Ignition tuning for the National Ignition Campaign

• Main Authors: Landen O., Edwards J., Haan S.W., Lindl J.D., Boehly T.R., Bradley D.K., Callahan D.A., Celliers P.M., Dewald E.L., Dixit S., Doeppner T., Eggert J., Farley D., Frenje J.A., Glenn S., Glenzer S.H., Hamza A., Hammel B.A., Haynam C., LaFortune K., Hicks D.G., Hoffman N., Izumi N., Jones O.S., Kilkenny J.D., Kline J.L., Kyrala G.A., Mackinnon A.J., Milovich J., Moody J., Meezan N., Michel P., Munro D.H., Olson R.E., Ralph J., Robey H.F., Nikroo A., Regan S.P., Spears B.K., Suter L.J., Thomas C.A., Town R., Wilson D.C., MacGowan B.J., Atherton L.J., Moses E.I.
• Format: Article
• Language: English
• Published: EDP Sciences 2013-11-01
• Series: EPJ Web of Conferences
• Online Access: http://dx.doi.org/10.1051/epjconf/20135901003

The overall goal of the indirect-drive inertial confinement fusion [1] tuning campaigns [2] is to maximize the probability of ignition by experimentally correcting for likely residual uncertainties in the implosion and hohlraum physics [3] used in our radiation-hydrodynamic computational models, and by checking for and resolving unexpected shot-to-shot variability in performance [4]. This has been started successfully using a variety of surrogate capsules that set key laser, hohlraum and capsule parameters to maximize ignition capsule implosion velocity, while minimizing fuel adiabat, core shape asymmetry and ablator-fuel mix.