Radial electric field 3D modeling for wire arrays driving dynamic hohlraums on Z.

[摘要] The anode-cathode structure of the Z-machine wire array results in a higher negative radial electric field (Er) on the wires near the cathode relative to the anode. The magnitude of this field has been shown to anti-correlate with the axial radiation top/bottom symmetry in the DH (Dynamic Hohlraum). Using 3D modeling, the structure of this field is revealed for different wire-array configurations and for progressive mechanical alterations, providing insight for minimizing the negative Er on the wire array in the anode-to-cathode region of the DH. Also, the 3D model is compared to Sasorov's approximation, which describes Er at the surface of the wire in terms of wire-array parameters.

[发布日期] 2007-06-01

[学科分类] 核物理和高能物理

[关键词] CATHODES;ELECTRIC FIELDS;COMPUTERIZED SIMULATION;SYMMETRY;ANODES;THREE-DIMENSIONAL CALCULATIONS;WIRES;ACCELERATORS Z-Accelerator.;Data modeling.;Hohlraums;Simulation and Modeling