title: Equation-of-state measurements of polyimide at pressures up to 5.8 TPa using low-density foam with laser-driven shock waves.
abstract: The laser-driven equation-of-state (EOS) experiments for polyimide are presented. The experiments were performed with emission measurements from the rear sides of shocked targets at up to a laser intensity of 10(14) W/cm(2) or higher with 351 nm wavelength and 2.5 ns duration. Polyimide Hugoniot data were obtained up to 0.6 TPa with good accuracy. Applying low-density foam ablator to the EOS unknown material, we also obtained the data at a highest pressure of 5.8 TPa in the nonmetal materials. Those data were in agreement with the theoretical curves.
authors.affiliation: Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Takamatsu
authors.forename: N
authors.initials: N
authors.lastname: Ozaki
authors.forename: K A
authors.initials: KA
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Ono
authors.forename: K
authors.initials: K
authors.lastname: Nagai
authors.forename: M
authors.initials: M
authors.lastname: Nakai
authors.forename: T
authors.initials: T
authors.lastname: Watari
authors.forename: A
authors.initials: A
authors.lastname: Sunahara
authors.forename: M
authors.initials: M
authors.lastname: Nakano
authors.forename: T
authors.initials: T
authors.lastname: Kataoka
authors.forename: H
authors.initials: H
authors.lastname: Takenaka
authors.forename: M
authors.initials: M
authors.lastname: Yoshida
authors.forename: K
authors.initials: K
authors.lastname: Kondo
authors.forename: T
authors.initials: T
authors.lastname: Yamanaka