Influence of Non-MHD Flutes on the Efficiency of Energy Transfer from the Laser-Produced, ICF and Space Exploding Plasmas to Magnetic Field

Journal Article · Sat Jan 15 04:00:00 EST 2005 · Fusion Science and Technology

OSTI ID:20849815

Zakharov, Yuri P; Antonov, Vladimir M; Boyarintsev, Eduard L; Melekhov, Alexandr V; Posukh, Vitaliy G; Shaikhislamov, Ildar F; Nakashima, Hideki; Vchivkov, Konstantin V

The results of <<MHD>> experiment with quasispherical Laser-produced Plasma Clouds (LPC) expanding into strong (B{sub 0} {approx}10 kG) and uniform magnetic field at KI-1 facility of ILP are presented. Main characteristics and the influence of non-MHD flute instability onto effectiveness of plasma-field interaction were studied especially for the purpose of plasma confinement and the direct conversion of its kinetic energy into magnetic and electric ones (of pick-up coils). A new model of enhanced field penetration into plasma due to Hall-effect in its flutes and under conditions of finite ion Larmor radius is discussed. The data obtained on the current generation by LPC in short-circuited surrounding coils (with total conversion efficiency up to {approx}10%) are compared with the models of ILP and last results of relevant 3D/PIC calculations done at KU. All these results show the opportunities of LPC-experiments to simulate both space exploding plasmas (AMPTE) and MHD-effects of ICF micro-explosions in planned NIF experiments for study Laser Fusion Rocket like a VISTA.

• OSTI ID: 20849815
• Journal Information: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 1T Vol. 47; ISSN 1536-1055
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRICAL FAULTS
ENERGY TRANSFER
FLUTE INSTABILITY
HALL EFFECT
ICF DEVICES
INERTIAL CONFINEMENT
KINETIC ENERGY
LARMOR RADIUS
LASER-PRODUCED PLASMA
LASERS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
US NATIONAL IGNITION FACILITY