Difference between revisions of "GTS Improvement List - Summer 2016"
| Line 5: | Line 5: | ||
= ''' Preparation Chamber''' = | = ''' Preparation Chamber''' = | ||
| − | 1. Put a shield for RGA (to limit | + | 1. Put a shield for RGA (to limit light scattering from RGA filament |
that causes photoemission from chamber components surface that gets coated | that causes photoemission from chamber components surface that gets coated | ||
with photocathode materials during evaporation.) | with photocathode materials during evaporation.) | ||
| Line 14: | Line 14: | ||
3. Recharge Sb boat. | 3. Recharge Sb boat. | ||
| − | 4. Clean up | + | 4. Clean up view ports that got coated. |
| − | 5. Redesign for | + | 5. Redesign for shield paddle motion technique. |
| − | 6. Add a RAV to isolate IP from | + | 6. Add a RAV to isolate IP from chamber. |
7. Add a K effusion source. | 7. Add a K effusion source. | ||
| − | 8. Redesign for | + | 8. Redesign for top heater to operate with cathode negative bias |
| − | configuration. Redesign of puck and heater stalk to hold | + | configuration. Redesign of puck and heater stalk to hold puck by |
| − | heater stalk, and eliminate | + | heater stalk, and eliminate need of bottom heater to serve as a |
transfer point. Need to use ceramic circuit breaker to electrically | transfer point. Need to use ceramic circuit breaker to electrically | ||
| − | isolate | + | isolate puck. |
| − | 9. Replace | + | 9. Replace bottom heater with a view port. |
| − | 10. Install puck | + | 10. Install puck with Fe foil for Kerr measurement? |
| Line 36: | Line 36: | ||
1. Replace isolated anode feed through with a a longer one that is rated to 5000 V (but first, Gary must check for cathode magnet clearance) | 1. Replace isolated anode feed through with a a longer one that is rated to 5000 V (but first, Gary must check for cathode magnet clearance) | ||
| + | |||
| + | 2. Replace leaky gate valve. | ||
| + | |||
| + | 3. Replace HV ceramic insulator. | ||
| + | |||
| + | 4. Replace HV shed. | ||
| Line 49: | Line 55: | ||
3. Install a Faraday Cup for emittance measurements. | 3. Install a Faraday Cup for emittance measurements. | ||
| − | 4. Degas dump further | + | 4. Degas dump further. |
= ''' Enclosure and Control Room''' = | = ''' Enclosure and Control Room''' = | ||
Revision as of 13:06, 8 July 2016
Lasers
Preparation Chamber
1. Put a shield for RGA (to limit light scattering from RGA filament that causes photoemission from chamber components surface that gets coated with photocathode materials during evaporation.)
2. Redesign for anode ring to mount on a paddle with a bellow (to enable flexibility in operation.)
3. Recharge Sb boat.
4. Clean up view ports that got coated.
5. Redesign for shield paddle motion technique.
6. Add a RAV to isolate IP from chamber.
7. Add a K effusion source.
8. Redesign for top heater to operate with cathode negative bias configuration. Redesign of puck and heater stalk to hold puck by heater stalk, and eliminate need of bottom heater to serve as a transfer point. Need to use ceramic circuit breaker to electrically isolate puck.
9. Replace bottom heater with a view port.
10. Install puck with Fe foil for Kerr measurement?
HV Chamber
1. Replace isolated anode feed through with a a longer one that is rated to 5000 V (but first, Gary must check for cathode magnet clearance)
2. Replace leaky gate valve.
3. Replace HV ceramic insulator.
4. Replace HV shed.
Magnetized Cathode Solenoid
Beamline
1. Install a YAG screen on the third diagnostic cross (instead of the phosphorus screen).
2. Install slits in first and second diagnostic crosses.
3. Install a Faraday Cup for emittance measurements.
4. Degas dump further.