Initial electron-beam results from the DARHT-II linear induction accelerator

Author

Ekdahl, Carl ; Abeyta, E.O. ; Bender, H. ; Broste, W. ; Carlson, C. ; Caudill, L. ; Chan, K.C.D. ; Chen, Y.J. ; Dalmas, D. ; Durtschi, G. ; Eversole, S. ; Eylon, S. ; Fawley, W. ; Frayer, D. ; Gallegos, R. ; Harrison, J. ; Henestroza, E. ; Holzscheiter, M

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

33

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

892

Lastpage

900

Abstract

The DARHT-II linear-induction accelerator has been successfully operated at 1.2-1.3 kA and 12.5-12.7 MeV to demonstrate the production and acceleration of an electron beam. Beam pulse lengths for these experiments were varied from 0.5 μs to 1.2 μs full-width half-maximum. A low-frequency inductance-capacitance (LC) oscillation of diode voltage and current resulted in an oscillation of the beam position through interaction with an accidental (static) magnetic dipole in the diode region. There was no growth in the amplitude of this oscillation after propagating more than 44 m through the accelerator, and there was no loss of beam current that could be measured. The results of these initial experiments are presented in this paper.

Keywords

electron accelerators; linear accelerators; particle beam diagnostics; 0.5 to 1.2 mus; 1.2 to 1.3 kA; 12.5 to 12.7 MeV; DARHT-II linear induction accelerator; accidental magnetic dipole; beam current; beam position oscillation; diode current; diode voltage; electron beam acceleration; electron beam production; low-frequency inductance-capacitance oscillation; Acceleration; Current measurement; Diodes; Electron accelerators; Electron beams; Linear accelerators; Particle beams; Production; Propagation losses; Voltage; Accelerator; accelerator measurement systems; induction accelerators; particle beams; stability;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2005.845115

Filename

1420642