Difference between revisions of "Talk:GTS meeting 6 27 16"
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| Line 4: | Line 4: | ||
*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. | ||
Revision as of 11:15, 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.