title: Effects of nonuniform illumination on implosion asymmetry in direct-drive inertial confinement fusion.
abstract: Target areal density (rhoR) asymmetries in OMEGA direct-drive spherical implosions are studied. The rms variation <deltarhoR>/<rhoR> for low-mode-number structure is approximately proportional to the rms variation of on-target laser intensity <deltaI>/<I> with an amplification factor of approximately 1/2(C(r)-1), where C(r) is the capsule convergence ratio. This result has critical implications for future work on the National Ignition Facility as well as OMEGA.
authors.affiliation: Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: C K
authors.initials: CK
authors.lastname: Li
authors.forename: F H
authors.initials: FH
authors.lastname: Séguin
authors.forename: J A
authors.initials: JA
authors.lastname: Frenje
authors.forename: R D
authors.initials: RD
authors.lastname: Petrasso
authors.forename: J A
authors.initials: JA
authors.lastname: Delettrez
authors.forename: P W
authors.initials: PW
authors.lastname: McKenty
authors.forename: T C
authors.initials: TC
authors.lastname: Sangster
authors.forename: R L
authors.initials: RL
authors.lastname: Keck
authors.forename: J M
authors.initials: JM
authors.lastname: Soures
authors.forename: F J
authors.initials: FJ
authors.lastname: Marshall
authors.forename: D D
authors.initials: DD
authors.lastname: Meyerhofer
authors.forename: V N
authors.initials: VN
authors.lastname: Goncharov
authors.forename: J P
authors.initials: JP
authors.lastname: Knauer
authors.forename: P B
authors.initials: PB
authors.lastname: Radha
authors.forename: S P
authors.initials: SP
authors.lastname: Regan
authors.forename: W
authors.initials: W
authors.lastname: Seka