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

Checklist for Loading the insert without NH3/ND3

Unloading the insert without NH3/ND3

1. 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.
2. Notify the Target Expert and the Run-Coordinator, and make sure the FNAL RCT and the team is available to join you.
3. Pickup NM3 Key and NM4 Key.
4. 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.
5. Ensure the Target Lifter position is in the lowest position.
6. Check the liquid level in the fridge, if the level is > 50% then use the annealing heat to reduce the level below ~20%.
7. Confirm that the collar, screws, tools (wrenche and allen-wrench) are there at the back of the hall.
8. Confirm that the handle and the bolts to connect to the insert are there at the back of the hall.
9. Take Cryo-Gloves with you.
10. Wear Level 3 PPE: Coveralls, Gloves, Shoe-Covers.
11. Access NM4, go to the target material prep-area.
12. 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.
13. 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.
14. 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).
15. 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.
16. Turn ON the Fans in the cave using the switch located near the ODH sensors.
17. Enter NM3 with the cart.
18. Leave the cart, near the Turbo-pump, specifically a the right-hand-side of the Turbo.
19. Plug the power cable to the cave's light.
20. Enter the cave with the tools (3/16 wrench, allen wrench), and the handle with the bolts.
21. 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
22. Disconnect the microwave wave-guide and place it on top of the target lifter carefully. You will have to use the allen-wrench
23. 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.
24. 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.
25. 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).
26. Connect the handle to the insert and tighted the screws, and connect the hook to the handle.
27. Wear the cryo-gloves and grab the hook connected tot the pulley.
28. 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.
29. 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.
30. Close the fridge by the blac-opff and affix the clamp.
31. Close the two backfill valves.
32. 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.
33. Once the insert reaches the cart, fix the insert using the collar and the screws.
34. Disconnect the hook, and the person in the cave can now go to NM3 and join the other person in NM3.
35. Turn-off the lights in the cave by disconnecting its cable from the power outlet.
36. Move the cart from NM3 to back of the NM4 (material station).
37. Label a bottle, and then Unload the material into that bottle.

Loading the insert without NH3/ND3

1. 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.
2. Notify the Target Expert and the Run-Coordinator, and make sure the FNAL RCT and the team is available to join you.
3. Pickup NM3 Key and NM4 Key.
4. 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.
5. Ensure the Target Lifter position is in the highest (annealing) position.
6. Check the liquid level in the fridge, if the level is > 50% then use the annealing heat to reduce the level below ~20%.
7. Confirm that the tools (3/16-wrench, and allen-wrench) are there at the back of the hall.
8. Take Cryo-Gloves with you.
9. Wear Level 3 PPE: Coveralls, Gloves, Shoe-Covers.
10. Access NM4, go to the target material prep-area.
11. Ensure that you have the 3/16-wrench, and allen-wrench with you to connect the microwave and NMR connectors. If not, you will have to go outiside and bring, so it's better to confirm.
12. Fix the insert into the cart and ensure that the collar and the screws are installed.
13. Bring the cart (with the insert) and all the tools and parts towards the cryoplatform and stop at where the ODH sensors are (near the stairs to the cryoplatform).
14. 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.
15. Turn ON the Fans in the cave using the switch located near the ODH sensors.
16. Enter NM3 with the cart.
17. Leave the cart, near the Turbo-pump, specifically a the right-hand-side of the Turbo.
18. Plug the power cable to the cave's light.
19. One person enter the cave, and get ready to pull the insert using the rope and crane.
20. The other person in NM3, should connect the hook to the top of the handle and then then remove the collar and the screws, and take the insert slowly out of the cart and let the person in the cave to pull.
    During the time that insert is going up, the person at NM3 can also go to the cave.
21. 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 Step 20.
22. Take the insert into the cave and move it closer to the frdige.
23. 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.
24. Wear the cryo-gloves.
25. 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.
26. Move the insert into the fridge: one person will control the rope of the pulley and the other person will guide the insert into the fridge.
27. Close the fridge by affixing the clamp.
28. Close the two backfill valves.
29. Connect the microwave waveguide and the NMR cables.
30. Disconnect the hook, and move the crane setup away from the fridge, and go to NM3.
31. Turn-off the lights in the cave by disconnecting its cable from the power outlet.
32. Label a bottle, and then Unload the material into that bottle.

NH3/ND3 Procedures (from DocDB-10355)

Equipment, Tools, And PPE

Equipment:

• NH3/ND3 dewar
• LN2 tub (Vacuum Insulated) (see Fig. 1)
• Large table to place the LN2 tub (see Fig. 2)
• A small table to place the tools
• Target insert (see Fig. 2)
• Target insert holder stand (see Fig. 2)
• Target insert eyebolt (see Fig. 6)
• Target insert transfer rack (see Fig. 4)
• Target insert transfer dewar (see Fig. 5)
• Target insert transfer dewar holder (see Fig. 5)
• Portable handheld dewar with LN2
• Escape pack (OCENCO EEBD) (Request this at MCR (Main Control Room) prior to accessing NM3)

Figure 1: LN2 tub (Vacuum Insulated).       Figure 2: Target insert with stand in the LN2 tub (side view).  Figure 3: Target insert with stand in the LN2 tub (front view).

Figure 4: Target insert on the target transfer rack,      Figure 5: Target transfer dewar attached to the target
the bottom of the target insert is in the transfer         insert using the dewar holder.
dewar with the dewar holder attached

Figure 6: Target insert with the eyebolt attached.

Tools:

• Wrench
• Paper towels
• Crucible tong
• Long tweezer
• Long screwdriver
• Long Q-tip (two shorter Q-tips joined together)
• Funnel
• Target material strainer
• Configuration lock
• LN2 transfer line (1/2”)
• Log survey meter (LSM) or teletector.ds

PPE:

• Cryo-gloves (both person A and B will wear cryo-gloves on both hands)
• Unvented chemical goggles (for persons A and B)
• Tyvek suit (for persons A and B)
• Cryo-apron (for persons A and B)
• Face shield (needed for person A while filling LN2 to the tub, and placing target bottles into the tub)
• Closed-toe, non-permeable shoes, and long pants (for persons A and B)
• Hard hats (Required for use of jib crane)
• Noise dosimeter (for persons A and B) provided by Industrial Hygiene (IH) for monitoring due to high noise regions in NM3 around fans
• NOTE: When performing this procedure under beam conditions that PPE must be changed at the NM3/NM4 boundary before entering the target cave (different set of cryo gloves, and apron).
• Wear additional radiological PPE as specified in the job specific RWP

A. Setting Up The Work Area

1. Bring all the equipment and tools to the work area.
2. Verify that the HVAC in the NM4 target prep area is on.
3. Put the LN2 tub on the table (Fig: 2). Make sure the long side of the table is parallel to the HVAC.
4. Arrange the tools and target material dewar so they are close and easily accessible.
5. Rope off the work area with yellow warning tape.
6. Ensure the caution label is on the LN2 tub edges (see Fig. 1). If the caution label is removed or lost, please stick it on the LN2 tub edges by making a new label from thelabel printer or contact ELO to provide.(Label: CAUTION! DO NOT TOUCH METAL WHEN COLD. MAY CAUSE INSTANT CRYO BURNS.)
7. (Person A) Fill the LN2 tub with LN2 until the level reaches the marked black line (1 inch below maximum, see Fig. 1). Throughout the procedure if the LN2 level drops to below the marked red line (see Fig. 1), we will refill the LN2 back to the marked level. (Hazard: cryogenic, Mitigation: Person A wears a Tyvek suit, cryo-apron, cryo-gloves, unvented goggles, and face shield; Person B stays away about 3 meters from the work area wearing a Tyvek suit, cryo-apron, cryo-gloves, and unvented goggles).

B. Loading The Target Insert

1. Notify the Fire Department when work is occurring in NM3 with dates activities will occur, SpinQuest contact, and primary hazards associated with the work.

• Note: Fill out the form Notification form (ESH DocDB# 7625) to notify the Fire Department copying Emergency Management and Fire Protection about planned work with Anhydrous Ammonia (NH3) in the NM3 target cave.

1. 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.
2. Ensure the Target Lifter position is in the highest (annealing) position.
3. Check the liquid level in the fridge, if the level is > 50% then use the annealing heat to reduce the level below ~20%.
4. Confirm that the tools (3/16-wrench, and allen-wrench) are there at the back of the hall.

B.1 Target Insert Preparation In NM4 Handling Area

2. Put on radiological PPE in accordance with the job specific RWP in addition to cryogenic PPE outlined in this procedure.
3. (Person A) Remove the target canister from the target material dewar, remove thepaper stopper using the tweezer, and place the target bottles into the LN2 tub (Hazard: ammonia spill, Mitigation: Immediately evacuate according to emergency plan if ammonia spills on the ground).
4. (Person A) Pick up the unwanted bottles with the crucible tong, put them back into the canister, put back the paper stopper, and insert the canister back into the target material dewar. Person A can now remove the face-shield, Person B can now approach the work area (Hazard: cryogenic splash, Mitigation: Person A is wearing Tyvek suit, cryo-apron, cryo-gloves, unvented goggles, and face-shield, Person B stays away 3 meters from the work area wearing a Tyvek suit, cryo-apron, cryo-gloves, and unvented goggles)
5. (Person A) Use the crucible tongs to pick up the target bottle we intend to use and tap the lid to push down the material. Person A gives the target bottle to Person B to crack open the lid on the bottle and hands it over to Person A. Then, person A removes the cap while keeping the bottle soaking in LN2.
6. Person B Opens the nut on the collar of the target insert stand, puts the target insert in the target insert stand, closes the collar, and puts the nut back on it.
7. Person B adjusts the target insert to soak the target cups in the LN2 tub, removes the lid by unscrewing the screw on one side, and on the other side, loosens the screw and puts aside the lid, and tightens the screw.
8. (Person A) Place a small amount of the target material from the bottle into the empty cup, then soak the target bottle back in the LN2. Repeat this step until the target cup is full. (Hazard: ammonia spill, Mitigation: Immediately evacuate according to the emergency plan if ammonia spills on the ground).
9. (Person B) Use a Q-tip to help move the target material beads into the target cup if necessary. Once the cup is full, close the lid on the cup and tighten the screw. (Hazard: cryogenic splash, Mitigation: Person B handles this step using long tools wearing cryo glove)
10. (Person A) leave the empty target bottle in the LN2 tub.
11. Repeat steps 4, 6 to 9 to fill the two cups that we intended to fill with the target material.
12. (Person A) If some target beads are floating in the LN2 bath, use a crucible tong or strainer to fish them out and load them in the target cups.

B.2 Transfer Target Insert To NM3

13. (Person A) Fill the blue transfer dewar with LN2. (Hazard: cryogenic, Mitigation: Person A wears a Tyvek suit, Apron, long pants, cryo-gloves, unvented googles, and face shield; Person B stays away from the work area). After that, the face shield should be removed.
14. (person A) removes the target insert from the target insert stand.
15. (Person A) Put the target insert material end into the blue transfer dewar and hold it, while person B affixes the collar around the target inserts in the wheeled rack and installs the blue transfer dewar holder and locks it.
16. (Person A) Move the target insert and the fixtures to the insert transfer rack. Ensure the target insert handle is installed on top of the target insert.
17. Move the target rack from the target prep area in NM4 to the NM3 in front of the target cave.
18. (Person A and B) Go to cryo-platform to open PRV-410-He to 0.5 psi and MV-402 to establish Helium gas pressure at the backfill panel.
19. (Person A and B) Change the Target Cave ODH fan control from “AUTO” to “ON” before entering NM3. Put a configuration lock and a sign that says “Target cave work in progress, DO NOT turn off” on the control knob cage.
20. After entering NM3, by the gate hold to change PPE if beam has been run. Replace cryogenic PPE worn in NM4 with a set used for NM3 to minimize contamination as directed by the supervising RCT.

B.3 Load Target Insert Preparation In NM3 Target Cave

1. If present in beam conditions, RCT(s) enter the target cave and take surveys and contamination wipes. Then, instruct workers A and B on conditions and requirements before they proceed. RCTs remain present in NM3 outside of the target cave to provide coverage as needed.
2. Check that both the curtain and ducted fans come on. Do not proceed with the rest of the procedure if one or more fans are not running. (Hazard: noise, Mitigation: Person A and B wear noise dosimeter due to localized high noise hazard around NM3 cave fans. After work is complete IH will read dosimetry results and advise on any necessary administrative controls for the remainder of the work shift).
3. In the event of an ammonia spill in the cave, persons A and B follow Emergency Response Scenario #5.
4. (Person A) Climb ladder into target cave. (Hazard: fall hazard, Mitigation: Maintain 3 points of contact on ladder at all times.)
5. (Person A) Perform a visual inspection of the jib crane rope to ensure there is no damage or degradation from radiation before use.
6. Person A and B put on hard hats while operating the jib crane and with a load attached.
7. (Person A) Move the jib crane out of the target cave and lower it to the floor.
8. (Person B) Remove the insert from the transfer rack, attach the insert handle eyebolt to the jib crane, hold the insert until person A starts pulling, then move away from the insert/dewar about 3 meters while it is being lifted overhead.
9. (Person A) Keep pulling the insert into the target cave, and hold the target insert. (Hazard: cryogen spillage, Mitigation: person B stays far away, 3 meters from the insert. Person A and B are wearing a Tyvek suit, cryo-apron, cryo-gloves, and unvented goggles, and hard hat)
10. After the insert is pulled into the cave, person B should go to the cave to assist person A. (Hazard: fall hazard, Mitigation: Maintain 3 points of contact on ladder at all times.)
11. (Person B) Open the valve ‘Fridge backfill’ on the backfill panel and check the manual pressure gauge in the backfill panel to ensure fridge pressure is about 0.5 psi above the atmosphere and confirm slight flow from the check valve CV-104-HE.
12. (Person B) Open the fridge laddish clamp and remove the blank laddish flange.
13. (Person A) Move the target insert slightly above the fridge so that person B can disconnect the blue transfer dewar and move it to the side.
14. (Person A) Lower the insert into the fridge until it is fully in place. (Hazard: ammonia sublimation, Mitigation: Immediately evacuate according to the Emergency Response Plan #5 if ammonia sublimates or the ammonia alarm triggers).
15. (Person B) Install the laddish clamp and affix.
16. (Person B) Close the valve ‘Fridge backfill’ on the backfill panel.
17. Connect microwave waveguides, NMR lines, and other electronic sensors.
18. (Person A) Attach the jib crane to the handle of the blue transfer dewar, and carefully lower it to the NM3 floor. (Hazard: cryogen spillage, Mitigation: both workers stay in the target cave)
19. Under beam conditions: After work in the target cave is complete all workers go near the NM3 enclosure door to frisk and change back into NM4 cryo PPE as instructed by the RCTs providing coverage and the job specific RWP.
20. (Person A) Hand-carry the blue transfer dewar from NM3 back to NM4 target prep area against the HVAC and let the LN2 evaporate.
21. (Person B) Move the transfer rack from NM3 back to the NM4 target prep area and place the blue transfer dewar in front of the HVAC to let it evaporate.
22. (Person A and B) Go to cryo-platform to close MV-402 and PRV-410-He.
23. (Person A and B) Remove the configuration lock and the sign on the control knob cage. Change the Target Cave ODH fan control from “ON” to “AUTO.”
24. Notify the Fire Department after completing the procedure, copying Emergency Management, ELO, Division Safety Officer, and Fire Department.
25. Worker A and B return noise dosimeters to IH staff to read results and determine and administrative controls necessary for the remainder of the work shift.

C. Unloading The Target Insert

1. 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.
2. Ensure the Target Lifter position is in the lowest position.
3. Check the liquid level in the fridge, if the level is > 50% then use the annealing heat to reduce the level below ~20%.
4. Confirm that the tools (3/16-wrench, and allen-wrench) are there at the back of the hall.

Perform Setting up the Work Area steps, 1-6, before proceeding with procedure.

1. Notify the Fire Department when work is occurring in NM3 with dates activities will occur, SpinQuest contact, and primary hazards associated with the work.

• Note: Fill out the form (Notification form) (ESH DocDB# 7625) to notify the Fire Department copying Emergency Management and Fire Protection about planned work with Anhydrous Ammonia (NH3) in the NM3 target cave.

2. (Person A and B) Go to cryo-platform to open PRV-410-He to 0.5 psi and MV-402 to establish Helium gas pressure at the backfill panel.
3. (Person A and B) Change the Target Cave ODH fan control from “AUTO” to “ON” before entering NM3. Put a configuration lock and a sign that says “Target cave work in progress, DO NOT turn off” on the control knob cage.

C.1 Retrieving Target Insert In NM3 Target Cave

4. Put on radiological PPE in accordance with the job specific RWP in addition to cryogenic PPE outlined in this procedure. Put on the cryogenic PPE specific for NM3 once inside the NM3 enclosure by the gate when in beam conditions.
5. If present in beam conditions, RCT(s) enter the target cave and take surveys and contamination wipes. Then, instruct workers A and B on conditions and requirements before they proceed. RCTs remain present in NM3 outside of the target cave to provide coverage as needed.
6. Check that both the curtain and ducted fans come on. Do not proceed with the rest of the procedure if one or more fans are not running. (Hazard: noise, Mitigation: Person A and B wear noise dosimeter due to localized high noise hazard around NM3 cave fans. After work is complete IH will read dosimetry results and advise on any necessary administrative controls for the remainder of the work shift).
7. In the event of an ammonia spill in the cave, persons A and B follow Emergency Response Scenario #5.
8. (Person A) Fill the blue transfer dewar with LN2 using DocDB# 10358 and bring all equipment to NM3 (target insert, target insert wheeled rack, blue transfer dewar)
(Hazard: cryogenic, Mitigation: Person A is wearing Tyvek coat, long pants, cryo-gloves, unvented goggles, and face-shield, Person B stays away 3 meters from the work area wearing a Tyvek suit, cryo-apron, cryo-gloves, and unvented goggles). After that, the face shield should be removed.
9. (Person A) Climb the ladder into the cave. (Hazard: fall hazard, Mitigation: Maintain 3 points of contact on ladder at all times.)
10. (Person A) Perform a visual inspection of the jib crane rope to ensure there is no damage or degradation from radiation before use.
11. Person A and B put on hard hats while operating the jib crane and with a load attached.
12. (Person A) Move the jib crane out of the target cave and lower it to the floor.
13. (Person B) Attach the handle of the blue transfer dewar to the jib crane and hold it until Person A begins pulling. Then move about three meters away from the dewar
while it is being lifted overhead.
14. (Person A) Keep pulling the blue transfer dewar into the target cave and hold the dewar. (Hazard: cryogen spillage, Mitigation: person B stays 3 meters away from the dewar wearing a Tyvek suit, cryo-apron, cryo-gloves, hard hat and unvented goggles)
15. After the blue transfer dewar is pulled into the cave, person B should go to the cave to assist person A.
16. (Peron A and B) Disconnect microwave waveguides, NMR lines, and other electrical connections.
17. (Person A) Attach the eyebolt to the insert and connect the jib crane to the eyebolt.
18. (Person B) Open the valve ‘Fridge backfill’ on the backfill panel and check the manual pressure gauge in the backfill panel to ensure fridge pressure is about 0.5 psi above the atmosphere and confirm slight flow from the check valve CV-104-HE. 19. (Person B) Open the laddish flange clamp and take off the flange.
20. (Person A) Slowly pull the insert out of the fridge using the jib crane system, guide with a hand if necessary.
21. While target insert is being removed in beam conditions RCTs positioned at the bottom of the stairs will use a telescoping meter to monitor dose levels.
22. (Person A) Once the insert is fully out, quickly put the material end into the blue transfer dewar within 10 seconds. (Hazard: ammonia sublimation, Mitigation: Immediately evacuate according to the Emergency Response Plan #5 if ammonia sublimates or the ammonia alarm triggers).
23. (Person B) Put the laddish flange and clamp back on the fridge.
24. (Person B) Close the valve ‘Fridge backfill’ on the backfill panel.
25. (Person B) Attach the blue transfer dewar holder to the insert.
26. (Person B) Climb out of the cave to the floor, but stay away from the area of about 3 meters where the target insert is hanging above. (Hazard: fall hazard, Mitigation: Maintain 3 points of contact on ladder at all times.)
27. (Person A) Lower the target insert from the cave to the floor. (Hazard: cryogen spillage, Mitigation: person B stays far away, 3 meters from the insert)
28. (Person B) Remove the collar on the transfer rack by unscrewing the bolts.
29. (Person B) Detach the jib crane and move the target insert along with the transfer dewar to the transfer rack and put back the collar and screws the bolts.
30. (Person A) Pull the jib crane up, then leave the target cave to join Person B. (Hazard: fall hazard, Mitigation: Maintain 3 points of contact on ladder at all times.)
31. Person A and B may now remove hard hats.
32. Under beam conditions: RCTs preform surveys of the target insert.
33. Under beam conditions: After work in the target cave is complete all workers go near the NM3 enclosure door to frisk and change back into NM4 cryo PPE as instructed by the RCTs providing coverage and the job specific RWP.

C.2 Transition Target Insert To NM4 Handling Area

34. (Person A and B) Move the target insert rack from NM3 to the target prep area in NM4.
35. (Person A and B) Go to cryo-platform to close MV-402 and PRV-410-He.
36. (Person A and B) Remove the configuration lock and the sign on the control knob cage. Change the Target Cave ODH fan control from “ON” to “AUTO” after leaving NM3.

C.3 Removing NH3 From Target Insert In NM4 Handling Area

37. (Person B) Opened the nut on the collar of the target insert stand, put the target insert in the target insert stand, closed the collar, and put the nut back on it.
38. (Person A) put the blue transfer dewar in front of the HVAC to let it evaporate.
39. (Person B) adjusts the target insert to soak the target cups in the LN2 tub, remove the lid by unscrewing the screw on one side and on the other side, loose the screw and puts aside the lid, and tighten the screw. Make sure not to keep out the insert for more than 20 seconds.
40. (Person A) Remove the target canister from the target material dewar, remove the paper stopper using the tweezer, and place the target bottles into the LN2 tub (Hazard: ammonia spill, Mitigation: Immediately evacuate according to emergency plan if ammonia spills on the ground).
41. (Person A) Pick up the unwanted bottles with the crucible tong, put them back into the canister, put back the paper stopper, and insert the canister back into the target material dewar. Person A can now remove the face-shield, Person B can now approach the work area (Hazard: cryogenic splash, Mitigation: Person A is wearing Tyvek suit, cryo-apron, cryo-gloves, unvented goggles, and face-shield, Person B stays away 3 meters from the work area wearing a Tyvek suit, cryo-apron, cryo-gloves, and unvented goggles)
42. (Person A) Use the crucible tongs to Pick up the target bottle we intend to use to take the material from the target cups. Remove the cap from the empty bottle, screw the funnel on the bottle, and soak it into the LN2 tub to pre-cool.
43. (Person B) Loosen the nut on the collar to rotate the target insert, and loosen the nut on the stand to adjust the height of the target insert up and down before unloading the target material from the target cups into the target storage bottles. Ensure that the nut on the collar is not removed.
44. (Person B) Place a small amount of the target material from the cup into the empty bottle, then soak the target cups back in the LN2. Repeat this step until the target bottle is full. (Hazard: ammonia spill, Mitigation: Immediately evacuate according to the emergency plan if ammonia spills on the ground).
45. (Person A) Use a Q-tip to help move the target material beads into the target bottle from the funnel if necessary. Once the bottle is full, close the cap on the bottle. (Hazard: cryogenic splash, Mitigation: Person A handles this step using long tools wearing cryo glove)
46. (Person A) leave the filled target bottle in the LN2 tub.
47. Repeat steps 42 to 46 to fill the two bottles that we intended to fill with the target material.
48. (Person A) If some target beads floated in the LN2 bath, use a crucible tong or strainer to fish them out and load them in the target bottles.
49. (Person B) can remove the empty insert from the LN2 tub, hang it on the wheeled rack, and place the collars around it.
50. If the target material has been irradiated in the beam proceed to procedure 10735 to package the material for shipment.
51. If the material has not been irradiated (Person A) Remove the target canister from the target material dewar, remove the paper stopper, put the target bottles back in the canister, put the paper stopper back in, and put the canister back in the target material dewar.
52. Leave the LN2 tub in the area until all LN2 evaporates (it takes about 30-40 minutes). Keep the no-entry fence tape until the LN2 is completely gone.
53. In beam conditions RCTs perform wipes and surveys of the work space and tools
54. Workers removes PPE and frisk in accordance with the job specific RWP and under RCT guidance in beam conditions.
55. Notify the Fire Department and copying Emergency Management, ELO, Division Safety Officer and Fire Protection after completing the procedure.
56. Worker A and B return noise dosimeters to IH staff to read results and determine and administrative controls necessary for the remainder of the work shift.

Evacuation and Rescue plan:

Scenario 1: Spill Of Liquid Nitrogen

• In the event of a full dewar falling down onto the ground only, all workers are to evacuate immediately and call emergency at 3131 from a Fermilab phone or 630-840-3131 from a cell phone. Provide details of the spill or splash to the dispatcher to determine the necessary level of emergency response. If a spill or splash on a person or cryo-injury happens, all workers are to evacuate immediately and call emergency at ext. 3131 from a Fermilab phone or 630-840-3131 from a cell phone. Emergency response will provide immediate care for exposure or injury. After treatment, the Fermilab Occupational Medical Office (FOMO) will need to be notified of the injury. Follow-up care can be provided by FOMO.

Scenario 2: Spill Of Anhydrous Ammonia Into Liquid Nitrogen Bath In NM4 Handling Area

• If ammonia beads are spilled into the liquid nitrogen bath while loading/unloading the target insert, floating beads will be recovered with the target material strainer, collected, and placed back in the storage bottles used to load the target insert.
• Beads that have sunk into the liquid nitrogen bath will be left in place. When the procedure is complete the liquid nitrogen bath will be moved in front of the HVAC ventilation system to evaporate. Personnel will leave the roped work area and not return until evaporation is complete.
• If the ammonia beads spilled were activated by the beam an RCT must perform a survey and contamination check before use of the tub.

Scenario 3: Spill Of Anhydrous Ammonia Onto The Ground In NM4 Handling Area

• If an anhydrous ammonia storage bottle falls onto the ground in the NM4 Hall, person A or B could pick it up using cryogenic gloves and place it in the LN2 tub within 20 seconds. If the storage bottle rolls away from the HVAC vent more than 4 meters, all workers should immediately evacuate the NM4 Hall. Inspect bottle before continuing use.
• If an anhydrous ammonia spill onto the ground in the NM4 Hall occurs, all workers are to evacuate immediately to the NM4 key tree.
• After evacuating the chemical spill area, call emergency at 3131 from a Fermilab phone or 630-840-3131 from a cell phone.  Provide details of the spill or splash to the dispatcher to determine the necessary level of emergency response. Emergency response will provide immediate care for exposure or injury. After treatment, the Fermilab Occupational Medical Office (FOMO) will need to be notified of the injury. Follow-up care can be provided by FOMO.
• Note: Contaminated clothing and shoes should be removed and cleaned for residual chemicals before reusing them.

Scenario 4: Spill Of Liquid Nitrogen During Transfer Rack Movement

• If liquid nitrogen spills from the blue target insert transfer dewar while moving the target insert in the transfer rack, the ammonia in the target insert will start to sublimate in 20 seconds if not submerged.
• Both workers should immediately leave the equipment in the immediate work area.
• Exit NM3 and/or NM4 by dropping the interlock if in controlled access and leaving the door open.
• After evacuating the enclosure, call emergency at 3131 from a Fermilab phone or 630-840-3131 from a cell phone.  Provide details of the spill or splash to the dispatcher to determine the necessary level of emergency response. 

Scenario 5: Ammonia Audio Alarm (With Blue Warning Light), Or Ammonia Spill/Sublimation In The NM3 Target Cave

• If both workers are out of the NM3 target cave at the time of alarm:
  • Both workers should immediately leave the equipment in the immediate work area.
  • Exit NM3 by dropping the interlock if in controlled access and leaving the door open.
  • If the worker(s) were in the target cave after beam was run where contamination potential exists
    • Leave NM4 through the North entrance by the roll-up door and stay near door in parking lot. 
    • Call x3131 from a Fermilab phone or 630-840-3131 from a cell phone and additionally note the contamination potential
    • Touch as little as possible until instructed by the Radiological Control Organization
  • If workers do not have the potential for contamination because they had not entered the target cave region or beam had not been run
    • Exit NM4 and call x3131 from a Fermilab phone or 630-840-3131 from a cell phone
    • Notify anyone in NM4 control room of the incident in the enclosure
    • Proceed to the NM4 assembly area in the north parking lot to greet emergency response team.
  • If all workers are in the NM3 target cave at the time of alarm:
    • Both workers should immediately leave the equipment in the immediate work area.
    • The worker(s) in the target cave should deploy the escape pack
    • Stay in the target cave, and wait for 1-2 minutes before leaving the target cave. As the ammonia vapors are being vented into the egress path at the bottom of the ladder.
    • Exit NM3 by dropping the interlock if in controlled access and leaving the door open.
    • If the worker(s) were in the target cave after beam was run where contamination potential exists
      • Leave NM4 through the North entrance by the roll-up door and stay near door in parking lot. 
      • Call x3131 from a Fermilab phone or 630-840-3131 from a cell phone and additionally note the contamination potential.
      • Touch as little as possible until instructed by the Radiological Control Organization.
    • If workers do not have the potential for contamination because they had not entered the target cave region or beam had not been run.
      • Exit NM4 and call x3131 from a Fermilab phone or 630-840-3131 from a cell phone.
      • Notify anyone in NM4 control room of the incident in the enclosure
      • Proceed to the NM4 assembly area in the north parking lot to greet emergency response team.
    • If one worker is in the NM3 target cave and one is outside:
      • Both workers should immediately leave the equipment in the immediate work area.
      • The worker on the floor outside the cave should move to the east side (stand near the NM3/NM4 gate) and wait until the person in the target cave is able to exit.
      • The worker in the target cave should deploy the escape pack
      • Stay in the target cave, and wait for 1-2 minutes before leaving the target cave.
      • Both workers exit NM3, dropping the interlock if in controlled access, and leave the door open.
      • If the worker(s) were in the target cave after beam was run where contamination potential exists
        • Leave NM4 through the North entrance by the roll-up door and stay near door in parking lot. 
        • Call x3131 from a Fermilab phone or 630-840-3131 from a cell phone and additionally note the contamination potential
        • Touch as little as possible until instructed by the Radiological Control Organization
      • If workers do not have the potential for contamination because they had not entered the target cave region or beam had not been run
        • Exit NM4 and call x3131 from a Fermilab phone or 630-840-3131 from a cell phone
        • Notify anyone in NM4 control room of the incident in the enclosure
        • Proceed to the NM4 assembly area in the north parking lot to greet emergency response team.

Scenario 6: ODH Audio Alarm (And Red Warning Light) In NM3 Target Cave

• If the ODH alarm goes off while performing work in the NM3 target cave:
  • Both workers should immediately leave the equipment in the immediate work area.
  • Exit NM3 by dropping the interlock if in controlled access and leaving the door open.
  • Exit NM4 and call x3131 from a Fermilab phone or 630-840-3131 from a cell phone
  • Notify anyone in NM4 control room of the incident in the enclosure
  • Proceed to the NM4 assembly area in the north parking lot to greet emergency response team.

Scenario 7: Target Cave Fan Turns Off

• If the target cave fan turns off during rigging insert in or out while the blue dewar is hanged with target insert, immediately leave the target insert along with the blue dewar and evacuate NM3.
• If the target cave fan turns off while loading the target insert into the evaporation fridge where the laddish clamp has already been removed, then immediately fully load the target insert in the fridge, place the clamp on again and close it, and evacuate NM3.
  
  

Scenario 8: Building Fire, ODH Or Ammonia Alarms

• While working on this procedure it is possible unrelated alarms could go off. This would include the building fire alarm, an ODH alarm (audible and with a red strobe warning light) for the NM4 cryogenic platform, or alarms for ODH and ammonia (audible with a blue warning light) in the NM3 target cave (while not working in the target cave).
• In the case of these alarms, the workers should immediately stop the work, leave the equipment in the immediate work area, and evacuate the building.
• Then call 3131 from a Fermilab phone or 630-840-3131 from a cell phone to report the event and the state of anhydrous ammonia and liquid nitrogen to emergency response when they respond to the other alarm.
• Report to NM4 assembly area in the north parking lot to await emergency response.
• If the worker(s) were in the target cave after beam was run where contamination potential exists at the time of the alarm
  • Leave NM4 through the North entrance by the roll-up door and stay near door in parking lot. 
  • Call x3131 from a Fermilab phone or 630-840-3131 from a cell phone and additionally note the contamination potential.
  • Touch as little as possible until instructed by the Radiological Control Organization.

Scenario 9: Building Power Outage

• In case of a power outage, the workers should immediately stop the work, leave the equipment in the immediate work area, and evacuate the enclosure, dropping the interlocks in the process.
• Then call 3131 from a Fermilab phone or 630-840-3131 from a cell phone to report the event and the state of anhydrous ammonia and liquid nitrogen in NM4 or NM3.
• Report to the NM4 assembly area in the north parking lot to await emergency response.
• If the worker(s) were in the target cave after beam was run where contamination potential exists at the time of the outage
  • Leave NM4 through the North entrance by the roll-up door and stay near door in parking lot. 
  • Call x3131 from a Fermilab phone or 630-840-3131 from a cell phone and additionally note the contamination potential
  • Touch as little as possible until instructed by the Radiological Control Organization