| 1 | == P1.6 Cool down the cryostat == |
| 2 | • **Phase** : 1 |
| 3 | • **Status** : Draft |
| 4 | • **Category** : Installation, integration, verification (C1) |
| 5 | • **Recurrence** : once |
| 6 | • **Duration** : 8 hour(s) |
| 7 | **Description** |
| 8 | • Cool down the cryostat. |
| 9 | **Prerequisites** |
| 10 | • SHARK-NIR connected to LBT network. |
| 11 | • Electronics cabinets on. |
| 12 | • Needs vacuum pumping at the beginning (vacuum pressure of 10e-5 is good, but the required amount is 10e-3 only.) |
| 13 | • Liquid nitrogen pumped? |
| 14 | **Procedure** |
| 15 | • Run the cryostat cooling down sequence |
| 16 | • Check how the system is performing every 30 minutes |
| 17 | **Success criteria** |
| 18 | • Cryostat cooled down without any issues. |
| 19 | • Temperature at the detector is stable at 77 K ? |
| 20 | **Notes** |
| 21 | **LBTO support** |
| 22 | • Liquid Nitrogen refill? |
| 23 | **Associated SHARK-NIR personnel** |
| 24 | • JF, LM, MdP, MM(from AZ) |
| 25 | **Date performed and by whom** |