Removal of Full Octagon Detector

Date:

I) Setup
    1. No jewelry, watches, or loose sleeves
    2. Long hair tied, shoe laces tied
    3. Shirts tucked in properly, nothing loose in shirt pockets
    4. Floor cleared (from Chemistry building to the car and in tunnel)
    5. All other people should be clear from the area
    6. No passage of anyone through the area during operation or crossing area to transportation
    7. Only 1 person will speak at a time, usually the persons leading the action or the person who is performing a certain action (releasing handles, pin in place, etc)
    8. Whenever someone sees a problem, then this person SHOULD SAY STOP. The response of the other people will be that they freeze. Action will only proceed after the person who issued the STOP has explained and the problem is resolved.
    9. Police escort ready in parking lot
    10. Arrangements have been made with Connie that no deliveries are made in parking lot
    11. Hallways in 1010 clear

 

II) Removal from Interaction Region

Personnel: Alan, Birger, Rachid, Mike, and Robert

Preparation:

    1. Remove Ring counter behind octagon
    2. Pull octagon detector back from IR
    3. Empty and disconnect all water hoses from frame
    4. Disconnect 'C'-cables from 'D' cables
    5. Remove 'C' cables from FEC's
    6. Remove FEC crates
    7. Remove support for FEC crates behind octagon
    8. Disconnect output hoses
    9. Disconnect two halves of back plate
    10. Remove back plate halves – leave ‘C’ cables attached
    11. Remove manifold supply hose
    12. Remove water manifold from support (save Al spacer between screws and manifold)
    13. Remove water manifold support (screws in from below)
    14. Remove part of enclosure above octagon
    15. Table A: Just inside fence -
    16. Table B: Next to beamline - octagon support on top
    17. Table C: Next to cooling system on opposite side of beamline
    18. Whole fence removed
    19. Spare transport bottom along side octagon on outer half in same orientation

Step 1: Removal of top half

Initial position:

Birger, Rachid, Mike on outer side

Robert and Alan on inner side

Spare transport placed on table C

Action:

    1. Rachid installs rear stand off w. handle mounted
    2. Alan and Birger install stand off in front
    3. Alan removes screws on inner side
    4. Birger removes screws on outer side
    5. Birger holds on to front end - Rachid in back
    6. Birger and Rachid slowly remove upper half - Birger's left hand touch enclosure
    7. Alan observes and guides on other side
    8. Mike observes behind Birger
    9. Birger and Rachid move slowly to table C
    10. Place mylar sheet on top for protection
    11. Mike screws stand-offs onto handles while Birger and Rachid hold upper half in each end
    12. Mike removes little handle from rear stand off
    13. Mike and Rachid install Plexiglas cover on upper half

Octagon top is now safely stored on table C

Step 2: Removal of bottom half

Personnel: Mike, Birger, Robert, Alan and Rachid

Initial position:

Table B pulled back from corner

Mike, Birger and Robert on outer side

Alan and Rachid on inner side

Robert reads checklist

Action:

    1. Measure and record height of the octagon support ~ 393 mm from plate
    2. Loosen locking nuts
    3. Rachid and Birger lowers structure as follows, while Robert puts downward pressure on rear of support structure:
    1. One turn down on front chain
    2. One turn down on front lock nuts
    3. Follow down with rear lock nuts
    4. One turn down on rear chain
    5. Repeat slowly 30 times in total - Mike keeps count
    1. Mike removes securing screws through black plate
    2. Mike installs outer handle – two screws only
    3. Rachid and Alan remove adjustment stops and retaining screws
    4. Rachid and Alan remove securing screws through black plate
    5. Mike removes track screws, but leaves the outermost
    6. Mike holds on to black handle on his side
    7. Rachid installs inner handle – two screws only
    8. Mike and Birger install counterweight support – 2 screws each side
    9. Birger installs counterweight
    10. Rachid into corner by spectrometer
    11. Alan and Birger pushes table B into corner and props it up with and wooden shims on floor
    12. Birger places slide plate to align with black plate
    13. Rachid and Mike observe front end to make sure beam line is not touched by the pin
    14. Alan and Mike slide support sideways toward inner side
    15. Rachid guides the front - watch beam pipe and enclosure
    16. Alan and Birger slide/lift support onto slide plate and align with marks in a sliding/rotating motion
    17. Alan and Birger slide the whole structure on table to the opposite corner - no rotation
    18. Mike observes from other side
    19. Rachid stays in corner for now

Step 3: Move bottom half from support structure to table A

Initial position:

Rachid in corner

Mike next to Rachid on other side of spectrograph rails

Alan behind frame

Birger next to frame

Robert reads instructions

Octagon transport box placed on inner half of table A with handles secured and open inward

Action:

  1. Birger removes screws which secure frame to support structure near vertex (normally this is a through pin)
  2. Alan and Rachid hold each end of octagon bottom by the handles
  3. Birger removes two rear screws which attach bottom half onto support structure
  4. Rachid lifts up front to clear support structure in vertex region
  5. Alan lifts up rear end
  6. Birger stands near front end
  7. Rachid hands off to Birger
  8. Alan and Birger move to table A
  9. Alan and Birger rotate frame 90 deg. about long axis – Alan counter clockwise
  10. Alan and Birger rotate another 90 deg.
  11. Place protection on top
  12. Mike attaches stand-offs to handles
  13. Remove protection
  14. Mike unsecures handles and hold bottom down
  15. Alan and Birger rotate bottom frame 180 degrees – Alan counter clockwise
  16. Place back onto bottom plate again
  17. Mike secures handles on bottom plate
  18. Alan and Mike remove table B to let Rachid out

Step 4: Assembly of upper and lower halves

Personnel: Alan, Birger, Robert, Mike, Nigel and Rachid

Initial position:

Alan, Birger, Rachid near table C

Mike, Robert inside blue underpass

Nigel reads instructions

Action:

  1. Rachid and Birger take handles at front end
  2. Alan take rear handles
  3. Move toward –Z and turn such that Birger and Rachid are at underpass
  4. Rachid and Birger secure grip under box
  5. Allow Mike and Robert to take handles under beamline
  6. Rachid and Birger duck under beamline
  7. Rachid and Birger hold on to rear part of box
  8. Alan lets go
  9. Upper part is placed on outer half of table A
  10. Birger and Rachid remove Plexiglas cover
  11. Birger places protection on top
  12. Alan in front, Rachid in rear hold frame by stand-offs
  13. Birger removes screws from handles while Alan and Rachid hold
  14. Alan and Rachid place top half onto bottom half – guiding pins in outermost ribs with other hand
  15. Birger installs screws holding top and bottom together – four corners first
  16. Birger installs Plexiglas cover

Status: Ready for transport to Chemistry

 

III) Transport from the Tunnel to the Chemistry Building

Personnel: Alan, Birger, Mike, Rachid, Robert, and Nigel

Start position:

        1. MIT van backed up to east entrance door in parking lot – bubble wrap installed in center of van, rear gate open
        2. Police escort waiting in 1010 parking lot
        3. Assembled Octagon sitting on the table A in transport box

Action:

  1. Robert checks that passage to entrance gate is clear
  2. Robert tends solid door at maze
  3. Birger and Rachid hold front handles, Alan rear handles
  4. Nigel walks in front, Mike in back
  5. Stop just inside entrance gate
  6. Nigel opens and holds gate
  7. Robert walks in front to van
  8. Robert gives "all clear" instruction
  9. Carriers walk through 1010 service building and stop behind van
  10. Robert and Mike enter van to receive octagon
  11. Birger & Rachid hand over front end to Robert and Mike
  12. Birger and Rachid reach under box for support
  13. Octagon is placed in cushioning material in van
  14. Robert and Mike exit van
  15. Rachid enters van from rear, Birger through right side
  16. Alan closes rear door from outside
  17. Robert drives van – Alan is passenger
  18. Mike, and Nigel drive to Chemistry area to prepare
  19. Drive under police escort 5 mi/hour the following route: drive around the RHIC ring via Brahms, Cornell Avenue east
  20. Van parked with rear facing east door of Chemistry
  21. Rachid and Birger stay in van

Preparations in Chemistry Area

Personnel: Mike and Nigel

Start position:

1) Nigel controls area inside Chemistry

2) Everybody else near van

Action:

  1. Nigel gives all clear signal
  2. Alan open rear gate of van
  3. Rachid and Birger exits van
  4. Alan enter van through side door
  5. Nigel and Robert behind van, and Alan start lifting out
  6. Nigel and Robert pass to Birger and Rachid, reach in and lift under rear of box, move away from van
  7. Alan exits van and takes over rear handles
  8. Robert tends door to hallway
  9. Carriers walk through hallway to Si lab with Nigel
  10. Mike opens and holds door to Si lab
  11. Carriers proceed into lab and place octagon on table

 

DONE