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- Follow the gas jet how to page to get the gas jets ready: OBSOLETE - How to use gas jet
- Use the plot above to chose the max backing pressure and rep rate
- Ensure both US-DPS and DS-DPS pumps are running and operating as normal. Also check VPIO:LI20:3164 to ensure the ion pump is on.
- Open the LI20 Vacuum panel, and then open the "DPS full schematic..." panel from the button near center of the page.
- The image below shows a fully functional DPS system:
- Start a strip tool and load the file: DPS_Gasjet_Pressures.stp
- Fire the gas jet once and watch the strip chart.
- VGCC:LI20:3108:US4 should stay below 1e-9 Torr
- VGCC:LI20:3291:DS2 should stay below 1e-5 Torr
- VGCC:LI20:3073 should see minimal change and stay below 5e-8 Torr
- Fire the gas jet for a minute or so and watch the strip chart.
- If all continues to look good then you are good to fire at will.
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- Stop firing the jets and follow OBSOLETE - How to use gas jet to shutdown and depressurize the gas jet system.
- Remove any changes to interlocks that you made.
- Reset any cold cathode gauge "control modes" that were changed back to auto.
- Call ACR and tell them everything has been reset.
In case of catastrophe:
You can always make art
