Difference between revisions of "GTS meeting 7 23 18"

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* Measurements Conditions:
 
* Measurements Conditions:
  
−
  Gun = 200 kV, laser rms =0.436 mm, gun solenoid off, Anode bias = +1000 V, Downstream Ion Collector bias = -92 V (one electrode, second electrode is grounded), Upstream Ion Collector bias = -44 V
+
  Gun = 200 kV
 +
Laser rms = 0.436 mm
 +
Gun Solenoid off
 +
Anode bias = +1000 V
 +
Upstream Ion Collector bias = -44 V
 +
Downstream Ion Collector bias = -92 V (one electrode, second electrode is grounded)
 +
 
  
 
* Summary of lifetime measurements:
 
* Summary of lifetime measurements:
Line 8: Line 14:
 
** 60-min Sb GaAs substrate photocathode lifetime: [https://logbooks/entry/3581644]
 
** 60-min Sb GaAs substrate photocathode lifetime: [https://logbooks/entry/3581644]
 
** 30-min Sb GaAs substrate photocathode lifetime: [https://logbooks/entry/3581642]
 
** 30-min Sb GaAs substrate photocathode lifetime: [https://logbooks/entry/3581642]
 +
 +
 +
* Laser heating measurements:
 +
** 60-min Sb GaAs substrate photocathode heating
 +
** 30-min Sb GaAs substrate photocathode heating

Latest revision as of 08:49, 23 July 2018

  • Measurements Conditions:
Gun = 200 kV
Laser rms = 0.436 mm
Gun Solenoid off
Anode bias = +1000 V
Upstream Ion Collector bias = -44 V
Downstream Ion Collector bias = -92 V (one electrode, second electrode is grounded)


  • Summary of lifetime measurements:
    • 10-min Sb Moly substrate photocathode lifetime: [1]
    • 90-min Sb GaAs substrate photocathode lifetime: [2]
    • 60-min Sb GaAs substrate photocathode lifetime: [3]
    • 30-min Sb GaAs substrate photocathode lifetime: [4]


  • Laser heating measurements:
    • 60-min Sb GaAs substrate photocathode heating
    • 30-min Sb GaAs substrate photocathode heating
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