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

Technical Report · Fri Jun 01 00:00:00 EDT 2007

DOI:https://doi.org/10.2172/909913· OSTI ID:909913

Mock, Raymond Cecil

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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 909913
• Report Number(s): SAND2007-3930; TRN: US0703928
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CATHODES
ELECTRIC FIELDS
COMPUTERIZED SIMULATION
SYMMETRY
ANODES
THREE-DIMENSIONAL CALCULATIONS
WIRES
ACCELERATORS
Z-Accelerator.
Data modeling.
Hohlraums
Simulation and Modeling