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| Richardson Lab Experimental Log |
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Message ID: 248
Entry time: Mon Oct 30 08:42:22 2023
In reply to: 246
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| Author: |
Jon |
| Type: |
Update |
| Category: |
VAC |
| Subject: |
Vacuum Leak Test |
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By 5:30 pm Friday, the pressure had reached 8.6e-8 torr and was continuing to fall. So it seems we are OK to proceed with permanentizing this configuration (cable routing, heater tape reinstallation).
| Quote: |
| Leak tested the worst flanges on the chamber after moving it and after bake 6. The 6 inch flange connected to the 8 inch reducing nipple is now leaking at 1.5 e-9, previously at 4 e-9. The 8 inch flange connected to the turbo pump is now leaking at 1.9 e-9, previously at 3 e-9. This means that the baking most likely improved the seals on these flanges and a hotter bake might fix the leaks for good. |
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