DocumentCode :
334441
Title :
Experiments investigating the generation and transport of 10-12 MeV, 30-kA, mm-size electron beams with linear inductive voltage adders
Author :
Mazarakis, M.G. ; Poukey, J.W. ; Maenchen, J.E. ; Rovang, D.C. ; Menge, P.R. ; Lash, J.S. ; Smith, D.L. ; Halbleib, J.A. ; Cordova, S.R. ; Mikkelson, K. ; Gustwiller, J. ; Stygar, W.A. ; Welch, D.R. ; Smith, I. ; Corcoran, P.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Volume :
1
fYear :
1997
fDate :
12-16 May 1997
Firstpage :
1245
Abstract :
We present the design, analysis, and results of the high-brightness electron beam experiments currently under investigation at Sandia National Laboratories. The anticipated beam parameters are the following: energy 8-12 MeV, current 35-50 kA, rms radius 0.5 mm, and pulse duration 30-60 ns FWHM. The accelerators utilized are SABRE and HERMES III. Both are linear inductive voltage adders (IVA) modified to higher impedance and fitted with magnetically immersed foilless electron diodes. In the strong 20-50 Tesla solenoidal magnetic field of the diode, mm-size electron beams are generated and propagated to a beam stop. The electron beam is field emitted from mm-diameter needle-shaped cathode electrode and is contained in a similar size envelope by the strong magnetic field. These extremely space charge dominated beams provide the opportunity to study beam dynamics and possible instabilities in a unique parameter space. The SABRE experiments are already completed and have produced 30-kA, 1.5-2.5 FWHM electron beams, while the HERMES-III experiments are currently under way
Keywords :
electron accelerators; linear accelerators; particle beam dynamics; particle beam stability; 12 MeV; 20 to 50 T; 30 kA; SABRE experiments; electron beams; high-brightness electron beam experiments; linear inductive voltage adders; magnetically immersed foilless electron diodes; needle-shaped cathode electrode; pulse duration; Cathodes; Diodes; Electrodes; Electron beams; Impedance; Laboratories; Linear particle accelerator; Particle accelerators; Voltage; X-ray imaging;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
Type :
conf
DOI :
10.1109/PAC.1997.749988
Filename :
749988
Link To Document :
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