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Title: Optimization of the parameters of plasma liners with zero-dimensional models

The efficiency of conversion of the energy stored in the capacitor bank of a high-current pulse generator into the kinetic energy of an imploding plasma liner is analyzed. The analysis is performed by using a model consisting of LC circuit equations and equations of motion of a cylindrical shell. It is shown that efficient energy conversion can be attained only with a low-inductance generator. The mode of an 'ideal' load is considered where the load current at the final stage of implosion is close to zero. The advantages of this mode are, first, high efficiency of energy conversion (80%) and, second, improved stability of the shell implosion. In addition, for inertial confinement fusion realized by the scheme of a Z pinch dynamic hohlraum, not one but several fusion targets can be placed in the cavity on the pinch axis due to the large length of the liner.
Authors:
 [1]
  1. Siberian Division, Institute of High Current Electronics, RAS Tomsk Polytechnic University, Tomsk 634055 (Russian Federation)
Publication Date:
OSTI Identifier:
22218425
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAPACITORS; COMMERCIAL BUILDINGS; CYLINDRICAL CONFIGURATION; ELECTRIC CURRENTS; ENERGY CONVERSION; EQUATIONS OF MOTION; IMPLOSIONS; INDUCTANCE; INERTIAL CONFINEMENT; KINETIC ENERGY; LINEAR Z PINCH DEVICES; LINERS; PLASMA; PULSE GENERATORS