BABAR

1
BABAR

• IFR UPGRADE
• DETECTOR ASSEMBLING
• AND
• MOUNTING

2
DETECTOR LAYOUTEXPLODED
3
DETECTOR LAYOUTASSEMBLED
4
IAROCCI TUBE

• TUBE MATERIAL NORYL OR PVC
• THE TUBE IS NOT SELF SUPPORTING

5
RIB

• RIB MATERIAL STEEL
• NUMBER OF RIBS TO BE OPTIMIZED DEPENDING ON
  DETECTORS EFFICIENCY AND STIFFNESS REQUIRED
• ASSUMING A RIB OF 1 MM THICK FOR EACH TUBE, THE
  TOTAL LENGTH NEEDED IS ABOUT 8000 m THE
  CORRESPONDING WEIGHT IS 1260 Kg AND THE COST
  3.61260 4536 (20 VAT INCLUDED)

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DETECTORS STIFFNESSTHE HELP OF THE RIBS
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GLUEING PHASE 1

• THE RIB IS GLUED ON THE TUBES SIDE

8
GLUEING PHASE 2

• THE DETECTORS MODULE IS ASSEMBLED

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GLUEING PHASE 3

• STRIPS, GROUND, SIGNAL PCB AND INSULATOR FOILS
  ARE ASSEMBLED
• THE TOTAL THICKNESS IS ABOUT 1 MM

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GLUEING PHASE 4

• STRIPS, GROUND, SIGNAL PCB AND INSULATOR FOILS
  ARE GLUED ON THE TUBES

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DETECTORS VERTICAL STIFFNESS
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MOUNTING AND DISMOUNTING THE DETECTOR

• THE STRIPS FOIL GOES IN TO THE GAP (SLIDE 13) A
  PROPER TOOLING KEEPS IT IN SHAPE AND PLACE
• THE MODULES OF THE DETECTOR ARE INSERTED ONE BY
  ONE FROM THE BOTTOM TO THE TOP, THE NEXT SLIDING
  ON THE PREVIOUS ONE (SLIDES 14, 15)
• EACH MODULE CAN BE HELD ON BOTH EDGES, WHICH
  ALLOWS THE LIFTING AND THE ADJUSTMENT.
• WHEN THE CORNER PIECES ARE MOUNTED THE DETECTOR
  DISASSEMBLY IS STILL POSSIBLE AFTER THE CENTER
  PIECES REMOVAL (SLIDE 16) THE PROCEDURE IS THE
  FOLLOWING
  
  1) LIFTING THE UPPER MODULES
  
  
  2) EXTRACT THE CENTRAL MODULES
  
  
  3) IN THE MIDDLE OF THE GAP THERES THE SPACE TO
  LOWER OR LIFT THE OTHER MODULES.AND REMOVE THEM.
• THE OPERATION OF ASSEMBLY AND DISASSEMBLY NEED A
  TOOLING, HOLDING AND HANDLING THE MODULES OF THE
  DETECTOR.

13
INSERTING THE STRIP FOIL

• THE STRIP FOIL SLIDES INTO THE GAP
• A TOOLING HOLDING AND MOVING THE FOIL IS NEEDED

14
INSERTING THE DETECTOR - 1
15
INSERTING THE DETECTOR - 2
16
EXTRACTING THE DETECTOR
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THE LAYER IN PLACE