DocumentCode :
1642872
Title :
Metal ion discharge in crossed fields and its applications
Author :
Churkin, I.N. ; Volosov, V.I. ; Steshov, A.G.
Author_Institution :
Budker Inst. of Nucl. Phys., Novosibirsk, Russia
fYear :
1998
Firstpage :
250
Abstract :
Summary form only given, as follows. A metal ion discharge in crossed E/spl times/B fields is considered in the report. The discharge is different from discharges which exist in the analogous configuration systems. The main working matter of the discharge is created from a cathode material by means of sputtering of its surface and ionization of sputtered atoms inside the plasma. Metal ions drift in crossed fields in the interelectrode space. The first modification in a trap with crossed fields is the source of multicomponent atomic fluxes. Two fluxes of metal atoms with different energies leave the source in the radial direction. Slow atoms are atoms sputtered from a cathode surface and non-ionized by plasma. Accelerated atoms are created by means of accelerating the metal plasma ions by a radial electrical field and its resulting charge-exchange inside the plasma volume. The atomic fluxes can be used for surface modification. Experiments on atomic implantation and accelerated atom beam assisted deposition are presented. Besides it is possible to use the metal ion discharge for generation of plasma flow with metal ions. Metal ions are magnetized in the near cathode area where the electrical field is small. This dense plasma cloud flows out the source along the axial magnetic field. Experimental results on the formation of titanium ion plasma flow is considered. The source of plasma flow with metal ions can be applied to plasma isotope separation systems and space engines.
Keywords :
aerospace engines; discharges (electric); electric field effects; ionisation; isotope separation; magnetic field effects; plasma applications; plasma flow; sputtering; Ti ion plasma flow; accelerated atom beam assisted deposition; accelerated atoms; atomic fluxes; atomic implantation; cathode material; cathode surface; charge-exchange; crossed fields; dense plasma cloud; electrical field; interelectrode space; metal atoms flux; metal ion discharge; multicomponent atomic fluxes; plasma; plasma flow; plasma isotope separation systems; plasma volume; radial electrical field; space engines; sputtered atoms ionization; sputtering; surface modification; Acceleration; Atomic beams; Atomic layer deposition; Atomic measurements; Cathodes; Fault location; Plasma accelerators; Plasma density; Plasma sources; Surface discharges;
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.1998.677804
Filename :
677804
Link To Document :
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