title: Wire initiation critical for radiation symmetry in z-pinch-driven dynamic hohlraums.
abstract: Axial symmetry in x-ray radiation of wire-array z pinches is important for the creation of dynamic hohlraums used to compress inertial-confinement-fusion capsules. We present the first evidence that this symmetry is directly correlated with the magnitude of the negative radial electric field along the wire surface. This field (in turn) is inferred to control the initial energy deposition into the wire cores, as well as any current shorting to the return conductor.
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: T W L
authors.initials: TW
authors.lastname: Sanford
authors.forename: C A
authors.initials: CA
authors.lastname: Jennings
authors.forename: G A
authors.initials: GA
authors.lastname: Rochau
authors.forename: S E
authors.initials: SE
authors.lastname: Rosenthal
authors.forename: G S
authors.initials: GS
authors.lastname: Sarkisov
authors.forename: P V
authors.initials: PV
authors.lastname: Sasorov
authors.forename: W A
authors.initials: WA
authors.lastname: Stygar
authors.forename: L F
authors.initials: LF
authors.lastname: Bennett
authors.forename: D E
authors.initials: DE
authors.lastname: Bliss
authors.forename: J P
authors.initials: JP
authors.lastname: Chittenden
authors.forename: M E
authors.initials: ME
authors.lastname: Cuneo
authors.forename: M G
authors.initials: MG
authors.lastname: Haines
authors.forename: R J
authors.initials: RJ
authors.lastname: Leeper
authors.forename: R C
authors.initials: RC
authors.lastname: Mock
authors.forename: T J
authors.initials: TJ
authors.lastname: Nash
authors.forename: D L
authors.initials: DL
authors.lastname: Peterson