Characterization of the 20-T immersed diode on RITS-3

Author

Rovang, D. ; Cordova, S. ; Hahn, K. ; Maenchen, J. ; Molina, I. ; Portillo, S. ; Oliver, B. ; Rose, D. ; Welch, D. ; Cooper, G. ; McLean, J.

Author_Institution

Sandia Nat. Labs., Albuquerque, NM, USA

fYear

2004

fDate

1-1 July 2004

Firstpage

179

Abstract

Summary form only given. Sandia National Laboratories is investigating and developing high-dose, high-brightness flash radiographic sources. One of the candidate sources being developed is the magnetically immersed diode. These diodes employ large-bore, high-field solenoid magnets to help produce an intense electron beam from a needle-like cathode "immersed" in the strong Bz field of the magnet. Sandia\´s RITS-3 accelerator (4-MV, 150-kA, 70-ns) has been used to fully characterize the diode behavior and radiographic performance of Sandia\´s 20-T large bore immersed diode over a wide range of diode parameters including cathode diameter, A-K gap, magnetic field strength, anode materials, base vacuum pressures and accelerator pre-pulse. Key results from this extensive survey are described.

Keywords

electromagnets; electron beams; plasma diodes; radiography; solenoids; 150 kA; 20 T; 4 MV; 70 ns; Bz field; electron beam; high-brightness flash radiographic sources; magnetic field strength; magnetically immersed diode; needle-like cathode; radiographic integrated test stand; solenoid magnets; vacuum pressures; Accelerator magnets; Boring; Cathodes; Diodes; Electron beams; Laboratories; Magnetic fields; Magnetic materials; Radiography; Solenoids;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2004. ICOPS 2004. IEEE Conference Record - Abstracts. The 31st IEEE International Conference on

Conference_Location

Baltimore, MD, USA

ISSN

0730-9244

Print_ISBN

0-7803-8334-6

Type

conf

DOI

10.1109/PLASMA.2004.1339741

Filename

1339741