학술논문
Shock timing on the National Ignition Facility: First experiments
Document Type
article
Author
Celliers P.M.; Robey H.F.; Boehly T.R.; Alger E.; Azevedo S.; Berzins L.V.; Bhandarkar S.D.; Bowers M.W.; Brereton S.J.; Callahan D.; Castro C.; Chandrasekaran H.; Choate C.; Clark D.S.; Coffee K.R.; Datte P.S.; Dewald E.L.; DiNicola P.; Dixit S.; Döppner T.; Dzenitis E.; Edwards M.J.; Eggert J.H.; Fair J.; Farley D.R.; Frieders G.; Gibson C.R.; Giraldez E.; Haan S.; Haid B.; Hamza A.V.; Haynam C.; Hicks D.G.; Holunga D.M.; Horner J.B.; Jancaitis K.; Jones O.S.; Kalantar D.; Kline J.L.; Krauter K.G.; Kroll J.J.; LaFortune K.N.; Pape S. Le; Malsbury T.; Mapoles E.R.; Meezan N.B.; Milovich J.L.; Moody J.D.; Moreno K.; Munro D.H.; Nikroo A.; Olson R.E.; Parham T.; Pollaine S.; Radousky H.B.; Ross G.F.; Sater J.; Schneider M.B.; Shaw M.; Smith R.F.; Sterne P.A.; Thomas C.A.; Throop A.; Town R.P.J.; Trummer D.; Wonterghem B.M. Van; Walters C.F.; Widmann K.; Widmayer C.; Young B.K.; Atherton L.J.; Collins G.W.; Landen O.L.; Lindl J.D.; MacGowan B.J.; Meyerhofer D.D.; Moses E.I.
Source
EPJ Web of Conferences, Vol 59, p 02004 (2013)
Subject
Language
English
ISSN
2100-014X
Abstract
An experimental campaign to tune the initial shock compression sequence of capsule implosions on the National Ignition Facility (NIF) was initiated in late 2010. The experiments use a NIF ignition-scale hohlraum and capsule that employs a re-entrant cone to provide optical access to the shocks as they propagate in the liquid deuterium-filled capsule interior. The strength and timing of the shock sequence is diagnosed with velocity interferometry that provides target performance data used to set the pulse shape for ignition capsule implosions that follow. From the start, these measurements yielded significant new information on target performance, leading to improvements in the target design. We describe the results and interpretation of the initial tuning experiments.