Gas Embedded Compressional Z-Pinch in H_2 and D_2
Source: Astrophysics and Space Science, Volume 256, Numbers 1-2, 1997 , pp. 443-446(4)
Abstract:Recent experiments in a gas embedded compressional Z-pinch are presented. The experiments have been carried out in H_2 and D_2, using a pulse power generator capable of delivering a dI/dt ≥ 10^12 A/s. The pinch is initiated by a focused laser pulse, which is coaxial with a cylindrical DC microdischarge. This configuration results in double column pinch at early times, which at current rise evolves into a gas embedded compressional Z-pinch. Diagnostics used are Rogowskii coil, single frame holographic interferometry and holographic shadowgraphy, visible streak camera images from which, current, density, line density, pinch radius and plasma motion are obtained. The pinch is characterised by a maximum on axis density which is much higher than the expected value from filling pressure, with a Bennett temperature of 75 eV at 180 kA.
Document Type: Regular Paper
Affiliations: 1: Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile 2: Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile 3: Université Pierre et Marie Curie, Paris, France 4: The Blackett Laboratory, Imperial College, London, U.K.
Publication date: January 1, 1997