Difference between revisions of "GTS meeting 10 09 17"

From Ciswikidb
Jump to navigation Jump to search
(Created page with "* High current runs * Why is photocathode lifetime limited (100 - 300 C)? # Laser heating and QE decay # Laser size too small? * Remaining tasks before shutdown on Wednes...")
 
Line 7: Line 7:
  
  
* Remaining tasks before shutdown on Wednesday Oct. 4, 2017:
+
* Remaining tasks before shutdown:
 
# Measure lifetime with a larger laser size (~rms=0.5 mm)
 
# Measure lifetime with a larger laser size (~rms=0.5 mm)
# Measure lifetime for: 0 A, 50 A, 100 A, 150 A, 200 A, 300 A, 400 A (Gun HV=300 kV, I=3.0 mA)
+
# Measure lifetime for: 0 A, 50 A, 100 A, 150 A, 200 A, 300 A, 400 A (Gun HV=300 kV, I=3.0 mA) - '''''Done''''' - [https://logbooks/entry/3487283]
 
# Lifetime vs biased anode
 
# Lifetime vs biased anode

Revision as of 08:39, 9 October 2017

  • High current runs


  • Why is photocathode lifetime limited (100 - 300 C)?
  1. Laser heating and QE decay
  2. Laser size too small?


  • Remaining tasks before shutdown:
  1. Measure lifetime with a larger laser size (~rms=0.5 mm)
  2. Measure lifetime for: 0 A, 50 A, 100 A, 150 A, 200 A, 300 A, 400 A (Gun HV=300 kV, I=3.0 mA) - Done - [1]
  3. Lifetime vs biased anode