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

Mock, Raymond Cecil

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

DOI  :  10.2172/909913
RP-ID  :  SAND2007-3930
PID  :  OSTI ID: 909913
Others  :  TRN: US0703928

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 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.