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Secondary Ions in the GTS

Secondary Ions in the GTS. Cristhian valerio. Secondary ion mobility. We check the ion mobility See if the ions generates outside the extraction can comeback even with solenoids running We generate H2 ions at least 1 m away from the cathode. Secondary ion mobility.

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Secondary Ions in the GTS

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  1. Secondary Ions in the GTS Cristhian valerio

  2. Secondary ion mobility • We check the ion mobility • See if the ions generates outside the extraction can comeback even with solenoids running • We generate H2 ions at least 1 m away from the cathode

  3. Secondary ion mobility • We check the ion mobility with the solenoids

  4. Anode bias:480 V

  5. Secondary electrons in the cathode The anode register a negative current during operation It decrease as the big solenoid increase its strength Yellow line: secondary electrons emitted from cathode. RED LINE: Secondary ions returning to cathode

  6. Sol on

  7. Anode current in the anode The current intensity need to be set correctly but the trends will be the same

  8. Secondary electrons in the cathode Shifting the beam from the center helps to spread the ion back bombardment in the cathode

  9. Cathode ion Back bombardment Beam center Beam shift 2mm

  10. Solenoid on, bombardment Solenoid on

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