DocumentCode :
585016
Title :
Performance of magnetically injected plasma opening switches for the particle beam fusion accelerator II (PBFA II)
Author :
Rochau, G.E. ; McDaniel, D.H. ; Mendel, C.W., Jr. ; Sweeney, M.A. ; Moore, W.B.S. ; Mowrer, G.R. ; Simpson, W.W. ; Zagar, D.M.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
fYear :
1990
fDate :
2-5 July 1990
Firstpage :
386
Lastpage :
393
Abstract :
Plasma opening switch experiments using a magnetically injected plasma have been in progress since October 1988. Plasma densities of 1×1012 to 2×1013 e/cm3 have been injected from the anode side into the 8 cm gap of the 20 ohm magnetically insulated transmission line of PBFA II using a slowly rising Br, z magnetic field. This field confines the azimuthally-uniform plasma to produce switches up to 30 cm in length. Four MIP geometries have been investigated to find a higher electrical impedance when the switch opens. These studies have shown that a separation of 10 to 20 cm from the load is important to keep the POS from affecting the load performance. With such a separation, 20 to 30 TW of power at 7 to 11 MV has been delivered to electron and ion diode loads. Data on switch performance with various loads and factors that improve performance are discussed.
Keywords :
magnetic fields; particle beam fusion accelerators; MIP geometries; electrical impedance; load performance; magnetically injected plasma opening switches; magnetically insulated transmission line; particle beam fusion accelerator II; plasma densities; Cathodes; Coils; Hip; Magnetic fields; Plasma density; Plasma sources;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
High-Power Particle Beams, 1990 8th International Conference on
Conference_Location :
Novosibirsk
Print_ISBN :
9.7898102055e+012
Type :
conf
Filename :
6396298
Link To Document :
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