Difference between revisions of "Talk:GTS meeting 6 27 16"
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(Created page with "* Things to try next, in order: 1. Run with the beam viewers shields completely out for improved pumping speed, 2. Bias anode positive, John hsa PS 3. Increase laser spot size...") |
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* Things to try next, in order: | * Things to try next, in order: | ||
| − | 1. Run with the beam viewers shields completely out for improved pumping speed, | + | *1. Run with the beam viewers shields completely out for improved pumping speed, |
| − | 2. Bias anode positive, John hsa PS | + | *2. Bias anode positive, John hsa PS |
| − | 3. Increase laser spot size to 4 mm | + | *3. Increase laser spot size to 4 mm |
| − | 4. Make a brand new photocathode (there is one puck with bare GaAs in the prep chamber) using the mask. | + | *4. Make a brand new photocathode (there is one puck with bare GaAs in the prep chamber) using the mask. |
| + | * For future, Joe G. recommends to do a high temp (450) beam dump bakeout. | ||
| + | |||
| + | * And also: | ||
| + | ** QE scanner, Dennis Turner working on software, Shukui and Adriana to setup laser scanner beam alignment | ||
| + | ** We need full EPICS control of the laser....some day | ||
Latest revision as of 10:37, 27 June 2016
- Things to try next, in order:
- 1. Run with the beam viewers shields completely out for improved pumping speed,
- 2. Bias anode positive, John hsa PS
- 3. Increase laser spot size to 4 mm
- 4. Make a brand new photocathode (there is one puck with bare GaAs in the prep chamber) using the mask.
- For future, Joe G. recommends to do a high temp (450) beam dump bakeout.
- And also:
- QE scanner, Dennis Turner working on software, Shukui and Adriana to setup laser scanner beam alignment
- We need full EPICS control of the laser....some day