Difference between revisions of "2020 Steel Shield Experiments at GTS"

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== Experimental Procedure ==
 
== Experimental Procedure ==
  
# Install photo-diode
+
# Install Newport silicon photo-diode with power meter on angled lens (photodiode info: [https://www.newport.com/p/818-SL--DB] )
  
 
== Predicted Results ==
 
== Predicted Results ==

Revision as of 16:16, 19 November 2020

Info on proposed steel shield experiments using the T-Gun at GTS

Previous Parameters

  1. Gun Voltage: 100 kV
  2. Gun Solenoid Current: 150 A. Experiments varied the current between 30 A and 150 A
  3. Anode Voltage: 1 kV (961 V). Experiments varied the anode bias voltage between 388 V and 961 V
  4. Beam Current: 100-500 uA
  5. Gun Vacuum Levels: Usually > 1e-9 A ion pump current at the gun

Proposed Parameters

  1. Gun Voltage: 90 kV (should be fine for experiment purposes)
  2. Gun Solenoid Current: 150 A
  3. Anode Voltage: 1 kV
  4. Beam Current: 500 uA or higher (to ensure sufficient measured intensity from recombining ions)
  5. Gun Vacuum Levels: Higher pressure -> higher ion production rate -> higher number of recombining ions.

Experimental Procedure

  1. Install Newport silicon photo-diode with power meter on angled lens (photodiode info: [1] )

Predicted Results

Relevant Calculations/Tech Notes/Useful Links


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