TECHNOLOGIES & APPLICATIONS
TITAN: AN ION SOURCE
The Titan ion source depends for its operation on two forms of arc discharge with a common hollow anode initiated simultaneously or one after another.
A constricted discharge between cathode 1 and hollow anode 2 serves to generate gas ions and initiate a vacuum arc (with the discharge operating time being 20 ms). Metal ions are generated in the cathode spots of the vacuum arc initiated between electrode 2 and electrode 3. The ions are extracted from the plasma surface stabilized by fine-mesh metal grid 4. The ions are accelerated to a required energy by a dc accelerating voltage applied at the gap between hollow anode 2 and electrode 5. The latter consists of two grids made of metal wires and showing a high geometrical transparency. The accelerated ion beam is taken by a collector on which specimens or machine parts are placed. To cut off the secondary electrons knocked out from the collector by the ions, a negative potential of no less than 15 kV is applied to one of the grids of electrode 6. Insulator 7 is filled with transformer oil. The source is cooled with water circulating through a radiator.
|1.||Accelerating voltage||20-80 kV|
|2.||- Vacuum arc current|
- Constricted arc current
|3.||- Metal ion beam current|
- Gas ion beam current
|4.||Operating pulse repetition rates|
|5.||Current pulse duration||400 ms|
|6.||Delay of vacuum arc initiation from constricted arc initiation||0-400 ms|
|7.||Ion beam cross-sectional area||250 cm2|
|8.||Vacuum arc operation time with-out changing the cathode||30 h|
|9.||Constricted arc operation time without changing the cathodes||100 h|
|10.||Source power supply voltage||3х380 V|
|11.||Excess pressure of compressed gas in the source||2-10 atm|
The source is capable to produce ion beams of any gases (except oxygen) and metals.
For further information please contact:
Georgy Yu. Yushkov
Dr. Sci. (Engineering), Leading Researcher
Phone: (3822) 49-17-76
Fax: (3822) 49-24-10
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