Difference between revisions of "CIS-ASY-R30-3"

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* Pierce geometry electrode front end
 
* Pierce geometry electrode front end
 
* 2" diameter anode CEBAF style
 
* 2" diameter anode CEBAF style
* Anode-cathode gap 6 cm
+
* Anode-cathode gap 2.506 inches from flat face of anode to the face of the GaAs wafer
 
* First attempt to HV condition in UITF resulted in punctured ceramic at 160 kV, unusual voltage induced gas desorption. We suspect due to thee NEG coated chamber
 
* First attempt to HV condition in UITF resulted in punctured ceramic at 160 kV, unusual voltage induced gas desorption. We suspect due to thee NEG coated chamber
 
* [[Media:Ball Electrode Drawing marked up by Carlos Dec 16 2021.pdf]]
 
* [[Media:Ball Electrode Drawing marked up by Carlos Dec 16 2021.pdf]]
 
*[https://wiki.jlab.org/ciswiki/index.php/Gun_assemblies,_electrostatic_models_and_field_maps Back to gun assemblies]
 
*[https://wiki.jlab.org/ciswiki/index.php/Gun_assemblies,_electrostatic_models_and_field_maps Back to gun assemblies]

Revision as of 13:47, 28 February 2022

  • 18" HV chamber NEG coated and originally built with WP NEG modules and wire mesh screen
  • 10" CF flange vacuum fired with holes for S&A tooling
  • R30 pure alumina insulator
  • Spherical electrode
  • Pierce geometry electrode front end
  • 2" diameter anode CEBAF style
  • Anode-cathode gap 2.506 inches from flat face of anode to the face of the GaAs wafer
  • First attempt to HV condition in UITF resulted in punctured ceramic at 160 kV, unusual voltage induced gas desorption. We suspect due to thee NEG coated chamber
  • Media:Ball Electrode Drawing marked up by Carlos Dec 16 2021.pdf
  • Back to gun assemblies