Physical picture of immersed diode experiments on HERMES III and SABRE

Author

Olson, C.L. ; Mazarakis, Michael G. ; Menge, P.R. ; Lash, J.S. ; Rovang, D.C. ; Rosenthal, S.E. ; Boyes, J.D. ; Johnson, David L. ; Smith, D.L. ; Maenchen, J.E. ; Welch, Dale R. ; Oliver, Bryan V. ; Bailey, Vernon L. ; Smith, D.

Author_Institution

Sandia Nat. Labs., Albuquerque, NM, USA

fYear

1998

Firstpage

211

Lastpage

212

Abstract

Summary form only given. A needle-like, high-current, electron beam has been produced on the Hermes III and SABRE accelerators at SNL using inductive voltage adder (IVA) technology, and a diode consisting of a needle cathode and a planar anode/bremsstrahlung converter which are both fully immersed in a strong solenoidal magnetic field (12-50 T). Desired nominal parameters are 10 MV, 40 kA, 0.5 mm radius cathode, and 5-35 cm anode-cathode gaps. High dose and small X-ray spot size are required for radiography applications. Results are presented of initial experiments on Hermes III and SABRE, which have produced doses up to 1 kRad@1 meter, and at lower doses, spot sizes as small as 1.7 mm diameter.

Keywords

electron accelerators; electron beams; linear accelerators; plasma diodes; 10 MV; 20 kA; 5 to 35 cm; HERMES II; IVA technology; SABRE accelerator; anode-cathode gaps; cathode radius; doses; immersed diode experiments; inductive voltage adder; needle cathode; needle-like high-current electron beam; nominal parameters; planar anode/bremsstrahlung converter; radiography; spot sizes; strong solenoidal magnetic field; Accelerator magnets; Anodes; Cathodes; Diodes; Electron accelerators; Electron beams; Magnetic fields; Needles; Radiography; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1998. 25th Anniversary. IEEE Conference Record - Abstracts. 1998 IEEE International on

Conference_Location

Raleigh, NC, USA

ISSN

0730-9244

Print_ISBN

0-7803-4792-7

Type

conf

DOI

10.1109/PLASMA.1998.677710

Filename

677710