Difference between revisions of "GTS meeting 3 07 17"
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* Measured QE ~ 3.5% with -100 V Gun bias. Was about 0.4% with -1 kV bias. This is to be compared to QE ~ 3.9 measured in Prep Chamber with -280 V bias before moving the photocathode to Gun. | * Measured QE ~ 3.5% with -100 V Gun bias. Was about 0.4% with -1 kV bias. This is to be compared to QE ~ 3.9 measured in Prep Chamber with -280 V bias before moving the photocathode to Gun. | ||
| − | * Gun vacuum improved when opening the gate valve to beamline – beamline vacuum went higher. | + | * Gun vacuum improved when opening the gate valve to beamline – beamline vacuum went higher (~ +0.1 nA). |
* Beam to F-Cup | * Beam to F-Cup | ||
* Plan to complete the second part of beamline in two weeks. We will have one-week down in about 2 weeks to install the second DP can, solenoid, ion precipitator and the BNNT diagnostic station. | * Plan to complete the second part of beamline in two weeks. We will have one-week down in about 2 weeks to install the second DP can, solenoid, ion precipitator and the BNNT diagnostic station. | ||
Revision as of 10:13, 7 March 2017
- Measured QE ~ 3.5% with -100 V Gun bias. Was about 0.4% with -1 kV bias. This is to be compared to QE ~ 3.9 measured in Prep Chamber with -280 V bias before moving the photocathode to Gun.
- Gun vacuum improved when opening the gate valve to beamline – beamline vacuum went higher (~ +0.1 nA).
- Beam to F-Cup
- Plan to complete the second part of beamline in two weeks. We will have one-week down in about 2 weeks to install the second DP can, solenoid, ion precipitator and the BNNT diagnostic station.