V. Carassiti - Princeton (USA) 9-13/01/ BABAR IFR UPGRADE DETECTOR ASSEMBLING AND MOUNTING

V. Carassiti - Princeton (USA) 9-13/01/ DETECTOR LAYOUT EXPLODED

V. Carassiti - Princeton (USA) 9-13/01/ DETECTOR LAYOUT ASSEMBLED

V. Carassiti - Princeton (USA) 9-13/01/ IAROCCI TUBE TUBE MATERIAL : NORYL OR PVC THE TUBE IS NOT SELF SUPPORTING

V. Carassiti - Princeton (USA) 9-13/01/ RIB RIB MATERIAL : STEEL NUMBER OF RIBS : TO BE OPTIMIZED DEPENDING ON DETECTOR’S 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 = 3.6*1260 = 4536 € (20% VAT INCLUDED)

V. Carassiti - Princeton (USA) 9-13/01/ DETECTOR’S STIFFNESS THE HELP OF THE RIBS

V. Carassiti - Princeton (USA) 9-13/01/ GLUEING – PHASE 1 THE RIB IS GLUED ON THE TUBE’S SIDE

V. Carassiti - Princeton (USA) 9-13/01/ GLUEING – PHASE 2 THE DETECTOR’S MODULE IS ASSEMBLED

V. Carassiti - Princeton (USA) 9-13/01/ GLUEING – PHASE 3 STRIPS, GROUND, SIGNAL PCB AND INSULATOR FOILS ARE ASSEMBLED THE TOTAL THICKNESS IS ABOUT 1 MM

V. Carassiti - Princeton (USA) 9-13/01/ GLUEING – PHASE 4 STRIPS, GROUND, SIGNAL PCB AND INSULATOR FOILS ARE GLUED ON THE TUBES

V. Carassiti - Princeton (USA) 9-13/01/ DETECTOR’S VERTICAL STIFFNESS

V. Carassiti - Princeton (USA) 9-13/01/ 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 THERE’S 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.

V. Carassiti - Princeton (USA) 9-13/01/ INSERTING THE STRIP FOIL THE STRIP FOIL SLIDES INTO THE GAP A TOOLING HOLDING AND MOVING THE FOIL IS NEEDED

V. Carassiti - Princeton (USA) 9-13/01/ INSERTING THE DETECTOR - 1

V. Carassiti - Princeton (USA) 9-13/01/ INSERTING THE DETECTOR - 2

V. Carassiti - Princeton (USA) 9-13/01/ EXTRACTING THE DETECTOR

V. Carassiti - Princeton (USA) 9-13/01/ THE LAYER IN PLACE