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Based on the FNAL "Approved" procedure on https://seaquest-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=10355
Demonstrational Video (Note: Please ignore the Steps with the "Iron Cage" as it was replaced with a storage cabinet in the very recent approved-version):
https://drive.google.com/file/d/18QMZcQo55Yr2iqhSTFtNA3yn9LO8JOMZ/view?usp=sharing
Checklist for Unloading the insert without NH3/ND3
| Item # | Location | Check Item |
|---|---|---|
| 2 | Control room area | Notify the Target Expert, the run coordinator, and the FNAL RCT team Is the FNAL RCT team available to access the cave with you? Discuss the work plan with everyone going to make the access. Pickup NM3 and NM4 keys |
| 3 | Control room area | Close the Gate Valve (GV), and the GV-Bypass valve |
| 4 | Control room area | Ensure the target lifter is in the bottom position |
| 5 | Control room area | PPE: Cryo-gloves PPE level 3 (Tyvex suit, gloves, shoe covers) |
| 6 | Control room area | Ensure that the TO has a walkie-talkie to communicate and stay at the control room to monitor the system |
| 7 | Control room area | Have you had a job briefing with everyone in the access team? |
| 8 | Material handling station | Are the cart, collar+screws, insert-handle, and two nuts for the insert-handle ready? |
| 9 | Material handling station | Do you have the wrench to disconnect the microwave? and also a 3/16 wrench in case NMR connectors are tight? There should be a plastic bag (which contains those tools) hanging on the cart. |
| 10 | On the way to NM3 | Turn ON the ODH fans |
| 11 | In-cave (before unloading) | OPEN the two hand valves on the backfill panel to back fill the fridge. Ensure the pressure gauge is increasing to 0 psig (atmospheric pressure). Confirm the gHe flow coming out from the 0.5 psig relief valve with your hand. |
| 12 | In-cave (before unloading) | Do you have a banc-off flange, and an extra seal ready? |
| 13 | In-cave (before unloading) | Install the insert handle, and connect the hook to the insert's eyebolt. |
| 14 | In-cave (before unloading) | Disconnect the microwave wave-guide and NMR cable(s) and arrange them properly |
| 15 | In-cave (before unloading) | Have you checked the 0.5 psig relief valve's venting? |
| In-cave (unloading) | Unload the insert from the fridge | |
| 16 | In-cave (after unloading) | Properly close the fridge using a banc-off flange and a seal |
| 17 | In-cave (after unloading) | Have you closed the two hand valves on the backfill panel? Have you confirmed whether the blanc-off and its seal closed the fridge properly? |
| 18 | On the way back from NM3 | Have you turned OFF the lights in the cave? |
Checklist for Loading the insert without NH3/ND3
| Item # | Location | Check Item |
|---|---|---|
| 2 | Control room area | Notify the Target Expert, the run coordinator, and the FNAL RCT team |
| 3 | Control room area | Close the Gate Valve (GV), and the GV-Bypass valve |
| 4 | Control room area | Is the fridge level below 20%? If not, bring it down below 20% using the annealing heat |
| 5 | Control room area | Is the target lifter in the bottom position? |
| 6 | Control room area | PPE: Do you have cryo-gloves? Are you ready with PPE level 3 (Tyvex suit, gloves, shoe covers)? |
| 7 | Control room area | Is there a Target Operator available at the counting-house during this process? Make sure that the TO has a walkie-talkie to communicate. |
| 8 | Control room area | Have you had a job briefing with everyone in the access team? |
| 9 | Material handling station | Are the insert, cart, collar+screws, insert-handle, and two nuts for the insert-handle ready? |
| 10 | Material handling station | Do you have the wrench to disconnect the microwave? and also a 3/16 wrench in case NMR connectors are tight? There should be a plastic bag (which contains those tools) hanging on the cart. |
| 11 | On the way to NM3 | Have you turned ON the fans? |
| 12 | On the way to NM3 | Have you installed the insert handle, and connected the hook to the insert's eyebolt? |
| 13 | In-cave (before loading) | Have you opened the two hand valves on the backfill panel? |
| 14 | In-cave (before loading) | Do you have an extra seal ready? |
| 15 | In-cave (before loading) | Have you checked the 0.5 psig relief valve's venting? |
| 16 | In-cave (before loading) | Have you properly opened the fridge banc-off flange (and a seal)? |
| 17 | In-cave (after loading) | Have you closed the two hand valves on the backfill panel? Have you confirmed whether the insert-top with the seal closed the fridge properly? |
| 18 | On the way back from NM3 | Have you turned OFF the lights in the cave? |
Checklist for Unloading the insert with NH3/ND3
| 1 | Control room area | Did you read the procedure? |
| 2 | Control room area | Have you notified the Target Expert, the run coordinator, and the FNAL RCT team? Is the FNAL RCT team available to access the cave with you? Do you have NM3 and NM4 keys? |
| 3 | Control room area | Are the Gate Valve (GV), and the GV-Bypass valve closed? |
| 4 | Control room area | Is the target lifter in the bottom position? |
| 5 | Control room area | PPE: Do you have cryo-gloves? Are you ready with PPE level 3 (Tyvex suit, gloves, shoe covers)? |
| 6 | Control room area | Is there a Target Operator available at the counting-house during this process? Make sure that the TO has a walkie-talkie to communicate. |
| 7 | Control room area | Have you had a job briefing with everyone in the access team? |
| 8 | Material handling station | Are the cart, collar+screws, insert-handle, and two nuts for the insert-handle ready? |
| 9 | Material handling station | Do you have the wrench to disconnect the microwave? and also a 3/16 wrench in case NMR connectors are tight? There should be a plastic bag (which contains those tools) hanging on the cart. |
| 10 | On the way to NM3 | Have you turned ON the fans? |
| 11 | In-cave (before unloading) | Have you opened the two hand valves on the backfill panel? |
| 12 | In-cave (before unloading) | Do you have a banc-off flange, and an extra seal ready? |
| 13 | In-cave (before unloading) | Have you installed the insert handle, and connected the hook to the insert's eyebolt? |
| 14 | In-cave (before unloading) | Have you disconnected the microwave wave-guide and NMR cable(s) and arranged them properly? |
| 15 | In-cave (before unloading) | Have you checked the 0.5 psig relief valve's venting? |
| 16 | In-cave (after unloading) | Have you properly closed the fridge using a banc-off flange and a seal? |
| 17 | In-cave (after unloading) | Have you closed the two hand valves on the backfill panel? Have you confirmed whether the blanc-off and its seal closed the fridge properly? |
| 18 | On the way back from NM3 | Have you turned OFF the lights in the cave? |