Read Based on the FNAL "Approved" procedure on https://seaquest-docdb.fnal.gov/cgi-bin/sso/ShowDocument?docid=10355
The similar (but summarized) steps are mentioned below.
Unloading the calibration insert
- Go through all the following steps before you start this procedure, becuase you want to make sure to bring what you need to NM4 to avoid multiple trips to the Hall.
- Notify the Target Expert and the Run-Coordinator, and make sure the FNAL RCT and the team is available to join you.
- Pickup NM3 Key and NM4 Key.
- Ask the Target Expert to close the Gate-Valve and the GV-Bypass, and make sure the TO is at the counting-house with the WalkieTalkie.
- Confirm that the collar, screws, tools (wrenche and allen-wrench) are there at the back of the hall.
- Confirm that the handle and the bolts to connect to the insert are there at the back of the hall.
- Take Cryo-Gloves with you.
- Wear Level 3 PPE: Coveralls, Gloves, Shoe-Covers.
- Access NM4, go to the target material prep-area.
- Ensure that you have the collar on top with the screws. If not, you will have to go outiside and bring, so it's better to confirm.
- Ensure that you have the 3/16-wrench, and allen-wrench with you to disconnect the microwave and NMR connectors. If not, you will have to go outiside and bring, so it's better to confirm.
- Bring the cart with all the tools and parts towards the cryoplatform and stop at where the ODH sensors are (near the stairs to the cryoplatform).
- One person should go to the cryoplatform and open the backfill line gHe supply, set the regulator to ~ 4 psig, and make sure the cylinder level is at least above 500 psi, and then and come back.
If you don't have enough gHe, then go back to the control room and inform the Target Expert to replace the gHe cylinder. - Turn ON the Fans in the cave using the switch located near the ODH sensors.
- Enter NM3 with the cart.
- Leave the cart, near the Turbo-pump, specifically a the right-hand-side of the Turbo.
- Plug the power cable to the cave's light.
- Enter the cave with the tools (3/16 wrench, allen wrench), and the handle with the bolts.
- Open the two valves to backfill the fridge. Monitor the pressure gauge to make sure the pressure in the fridge is going up. It will take some time to get the pressure slightly above the atmospheric pressure. Until that, you can proceed to Steps 20, 21, 22
- Disconnect the microwave wave-guide and place it on top of the target lifter carefully. You will have to use the allen-wrench
- Disconnect the NMR cables from the connectors, you maybe able to disconnect by just rotating the connectors by-hand, if that doesn't work use the wrench just to make the connector loose enough, and then disconnect the NMR cables and propely arrange it away from the fridge.
- Confirm that the 0.5 psig relief-valve is relieving gHe by listening the sound that comes when you hold your hand/palm to close and open that valve's mouth. If you don't hear that sound, then check again the pressure gauge to ensure that you ar e still backfilling the fridge, and wait until the fridge is backfilled completely.
- Make sure that you have a blanc-off to close the fridge once the insert is taken-out. If not, stop the work, Close the two backfill valves, exit NM3 , then go to the cryo platform, close the gHe supply cylinder to backfill, and go to the counting-house and bring a clamp with you to continue (you will have to open the gHe cylinder, regulator again on your way back to NM4 to proceed on this procedure).
- Connect the handle to the insert and tighted the screws, and connect the hook to the handle.
- Wear the cryo-gloves and grab the hook connected tot the pulley.
- Open the Clamp, and take it away from the top of the fridge and keep it somewhere on the magnet cryostat where you can quickly grab it.
- Take the Insert out: one person will pull the rope of the pulley and the other person will guide the insert out from the fridge.
- Close the fridge by the blac-opff and affix the clamp.
- Close the two backfill valves.
- While once person move the insert carefully down to NM3, the other person should take all the tools and go NM3 and guide it to be move into the cart.
You can place your tools in the zip-lock bag hanging on the cart. - Once the insert reaches the cart, fix the insert using the collar and the screws.
- Disconnect the hook, and the person in the cave can now go to NM3 and join the other person in NM3.
- Turn-off the lights in the cave by disconnecting its cable from the power outlet.
- Move the cart from NM3 to back of the NM4 (material station).
- Label a bottle, and then Unload the material into that bottle.
Loading the calibration insert
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Demonstration 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
Loading the Insert (All target members at Counting House should help organize when this is an ammonia loading job)
| Step | Time frame | Location | Personnel | Critical Points |
|---|---|---|---|---|
| 1 | Day Before | NM4 Target Loading Area Cryo-platform | Target Insert Team NMR Team | Infrastructure Checks: Make sure insert coils and temperatures sensors are working. Check that each NMR coil is able to see the crystal signal. Check the each Cernox is work in LN2. Make sure each Q-meter is working and each Lambda/2 cable is connected well and you have seen a crystal signal with each prior to target insert installation. Make sure microwave have been tested and all is ready. |
| 2 | 1 hour before | NM4 Target Loading Area | Any Target Team member | Stage the Target Loading: Fill the target loading tub with LN2 at least 60-30 minutes ahead. It will take 5 trips. This should be done before calling the RSO, IH, ES&H or anyone else that is coming out to watch. At this time check that the tools that are needed are laid out on the table, that the microwave and NMR tools are in the little plastic bag on the insert rack, that the insert handle is on the insert, that the screw driver for the lids is there. |
| 3 | Before going into Hall | Target Controls (Counting House) | Target Expert | Close gate valve and GV-bypass for backfilling, ensure the fridge is no fuller than 20% otherwise boil it off with the annealing plates, ensure the target actuator position is in Middle position. |
| 4 | Before going in | Hall Corridor into NM4 | Target Loading Team | Ensure PPE for the occasion is used and that you sign the RWP (they check). Obtain material from shed and bring it down to NM4 and put in LN2 bath ready for loading. |
| 5 | During Procedure | NM4 Target Loading Area | Target Loading Team | Load target. Take photo of the bottle before loading and bottle label. After loading take photo of the loaded insert before putting lid on. |
| 6 | During Procedure | NM3 Cave | Target Loading Team | Check that there is a backup seal available. Load insert. Connect NMR cables and microwaves. Put tools back in little plastic bag. Turn off cave light. |
| 7 | After procedure | Target Controls (Counting House) | Target Expert | Open gv-bypass or gate valve. As soon as possible after the target insert is loaded the Target Expert should fill the fridge to keep material cold. |
| 8 | After procedure | Target Controls (Counting House) | Target Expert | After procedure update the target inventory and post an FNAL elog about what material is in each target location. |
Unloading the Insert (All target members at Counting House should help organize when this is an ammonia unloading job)
| Step | Time frame | Location | Personnel | Critical Points |
|---|---|---|---|---|
| 1 | 1 or days before | Target Expert | Notify RSO, ES&H | |
| 2 | In the morning of the day of unloading | Target Expert | Send email notification to the Fermilab Fire Department | |
| 3 | 1 hour before | NM4 Target Loading Area | Any Target Team member | Notify Fire Department via a Phone call Stage the Target Loading: Fill the target loading tub with LN2 at least 60-30 minutes ahead. It will take 5 trips. This should be done before calling the RSO, IH, ES&H or anyone else that is coming out to watch. At this time check that the tools that are needed are laid out on the table, that the microwave and NMR tools are in the little plastic bag on the insert rack, that the insert handle is on the insert, that the screw driver for the lids is there.
|
| 4 | Before going into Hall | Target Controls (Counting House) | Target Expert | Close gate valve and GV-bypass for backfilling, ensure the fridge is no fuller than 20% otherwise boil it off with the annealing plates, ensure the target actuator position is in Middle position. |
| 5 | Before going in | Hall Corridor into NM4 | Target Unloading Team | Ensure PPE for the occasion is used and that you sign the RWP (they check). |
| 6 | During Procedure | NM3 Cave | Target Loading Team | Unload insert. Disconnect NMR cables and microwaves. Put tools back in a little plastic bag. |
| 7 | After procedure | Target Controls (Counting House) | Target Expert | After the target insert is unloaded, and once the fridge is closed, the Target Expert should keep the fridge in the Idle Mode. |
| 8 | During Procedure | NM4 Target Loading Area | Target Loading Team | Take photo of the insert cups, and also the bottle after unloading the material with the bottle label. |
| 9 | After procedure | Target Controls (Counting House) | Target Expert | After procedure update the target inventory and post an FNAL elog about what material is in each target location. |
Checklist for Unloading the insert without NH3/ND3
| Item # | Location | Check Item |
|---|---|---|
| 1 | 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 |
| 2 | Control room area | Close the Gate Valve (GV), and the GV-Bypass valve |
| 3 | Control room area | Ensure the target lifter is in the bottom position |
| 4 | Control room area | PPE: Cryo-gloves PPE level 3 (Tyvex suit, gloves, shoe covers) |
| 5 | Control room area | Ensure that the TO has a walkie-talkie to communicate and stay in the control room to monitor the system |
| 6 | Control room area | Have you had a job briefing with everyone in the access team? |
| 7 | Material handling station | Are the cart, collar+screws, insert-handle, and two nuts for the insert-handle ready? |
| 8 | 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. |
| 9 | On the way to NM3 | Turn ON the ODH fans |
| 10 | In-cave (before unloading) | OPEN the two hand valves on the backfill panel to backfill 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. |
| 11 | Disconnect the NMR cables and waveguide and place those away from the fridge with care. | |
| 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? |
| 16 | In-cave (unloading) | Unload the insert from the fridge |
| 17 | In-cave (after unloading) | Properly close the fridge using a banc-off flange and a seal |
| 18 | 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? |
| 19 | 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 |
|---|---|---|
| 1 | Control room area | Notify the Target Expert, the run coordinator, and the FNAL RCT team |
| 2 | Control room area | Close the Gate Valve (GV), and the GV-Bypass valve |
| 3 | Control room area | Is the fridge level below 20%? If not, bring it down below 20% using the annealing heat |
| 4 | Control room area | Ensure the target lifter is in the bottom position |
| 5 | Control room area | PPE: |
| 6 | Control room area | Ensure that the TO has a walkie-talkie to communicate and stay in 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 insert, 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 loading) | Connect the hook to the insert's eyebolt |
| 12 | In-cave (before loading) | OPEN the two hand valves on the backfill panel to backfill the fridge. Ensure the pressure gauge is increasing to 0 psig (atmospheric pressure). |
| 13 | In-cave (before loading) | Do you have an extra seal ready? |
| 14 | In-cave (before loading) | Have you checked the 0.5 psig relief valve's venting? |
| Wear cryo-gloves | ||
| 15 | In-cave (before loading) | Open the fridge banc-off flange and take off the seal. |
| 16 | In-cave (loading) | Load the insert |
| 17 | In-cave (loading) | Install the clamp with the seal, and after that you can remove the cryo-gloves, and connect NMR cables and/or microwave wave-guide |
| 18 | Remove the hook from the handle and also remove the insert handle from the insert, take it with you, and hang it on the cart along with the tools. | |
| 19 | 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? |
| 20 | On the way back from NM3 | Have you turned OFF the lights in the cave? |
Checklist for Unloading the with NH3/ND3
| Item # | Location | Check Item |
|---|---|---|
| 1 | 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 |
| 2 | Control room area | Fill the LN2 tub, and blue transport dewar, and have some LN2 in the portable handheld dewar at the material handling station |
| 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 in 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 | Ensure the following things are ready cart collar+screws insert-handle and two nuts insert-handle blue transport dewar with LN2 |
| 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 | At NM3 | One person should go to the cave while the other person connecting the blue transfer dewar with LN2 to the hook at NM3. |
| 12 | In-cave (before unloading) | Place the blue transport dewar with LN2 on top of the magnet cryostat so you can quickly submerge the target cups as soon as the insert is taken out. |
| 13 | In-cave (before unloading) | OPEN the two hand valves on the backfill panel to backfill 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. |
| 14 | In-cave (before unloading) | Disconnect the NMR cables and waveguide and place those away from the fridge with care. |
| 15 | In-cave (before unloading) | Do you have a banc-off flange, and an extra seal ready? |
| 16 | In-cave (before unloading) | Ensure that you have your cryo-gloves ready but don't wear them until you are done with this step and the next step Install the insert handle, and connect the hook to the insert's eyebolt. |
| 17 | In-cave (before unloading) | Disconnect the microwave wave-guide and NMR cable(s) and arrange them properly |
| 18 | In-cave (before unloading) | Have you checked the 0.5 psig relief valve's venting? |
| 19 | In-cave (before unloading) | Wear cryo-gloves |
| 20 | In-cave (unloading) | Unload the insert from the fridge and submerge the target cups as soon as the insert is taken out. |
| 21 | In-cave (after unloading) | Properly close the fridge using a banc-off flange and the seal, and you can then remove the cryo-gloves |
| 22 | 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? |
| 23 | In-cave (after unloading) | Move the insert to NM3 carefully using the crane system and attach it to the cart with the collar and screws. |
| 24 | On the way back from NM3 | Turn OFF the lights in the cave |
Checklist for Loading the insert with NH3/ND3
| Item # | Location | Check Item |
|---|---|---|
| 1 | Control room area | Notify the Target Expert, the run coordinator, and the FNAL RCT team |
| 2 | Control room area, Material handling station | Fill the LN2 tub, and blue transport dewar, and have some LN2 in the portable handheld dewar at the material handling station |
| 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 | Ensure the target lifter is in the bottom position |
| 6 | Control room area | PPE: |
| 7 | Control room area | Ensure that the TO has a walkie-talkie to communicate and stay in the control room to monitor the system |
| 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 | Material handling station | Load the insert cups with the material, attach the blue transport dewar to the bottom of the insert, |
| 12 | On the way to NM3 | Turn ON the ODH fans |
| 13 | On the way to NM3 | Have you installed the insert handle, and connected the hook to the insert's eyebolt? |
| 14 | In-cave (before loading) | OPEN the two hand valves on the backfill panel to backfill the fridge. Ensure the pressure gauge is increasing to 0 psig (atmospheric pressure). |
| 15 | In-cave (before loading) | Do you have an extra seal ready? |
| 16 | In-cave (before loading) | Have you checked the 0.5 psig relief valve's venting? |
| 17 | Wear cryo-gloves | |
| 18 | In-cave (before loading) | Open the fridge banc-off flange and take off the seal. |
| 19 | In-cave (loading) | Carefully take the insert out from the blue transport dewar, and load the insert into the fridge |
| 20 | In-cave (after loading) | Install the clamp with the seal, and after that, you can remove the cryo-gloves, and connect NMR cables and/or microwave wave-guide, and also connect the fridge sensor cable. |
| 21 | In-cave (after loading) | Remove the hook from the handle and also remove the insert handle from the insert, take it with you, and hang it on the cart along with the tools. |
| 22 | In-cave (after loading) | Attach the hook to the blue transport dewar which contains LN2 and carefully lower it down to NM3 |
| 23 | 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? |
| 24 | In-cave (after loading) | Place the blue transport dewar on the cart and start moving the cart to NM4 |
| 25 | On the way back from NM3 | Have you turned OFF the lights in the cave? |