Difference between revisions of "GTS meeting 10 09 17"
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# 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] | # 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 | ||
| + | # Slit-Viewer emittance measurement: Slit1 and Viewer3 with focus lens | ||
Revision as of 08:40, 9 October 2017
- High current runs
- Why is photocathode lifetime limited (100 - 300 C)?
- Laser heating and QE decay
- Laser size too small?
- Remaining tasks before shutdown:
- 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) - Done - [1]
- Lifetime vs biased anode
- Slit-Viewer emittance measurement: Slit1 and Viewer3 with focus lens