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RICH WG

RICH WG. M.Lenti. Outlook. Mirror Support Vidyo meeting on June 12, 20, 27 and on July 4 and 11 RICH WG meeting on august 27 Vessel status ( see Ferdi ’s presentation last Tuesday ) Mirror Support Status ( V.Carassiti ) Mirror Support Prototypes ( G.Anzivino )

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RICH WG

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  1. RICH WG M.Lenti

  2. Outlook • MirrorSupportVidyo meeting on June 12, 20, 27 and on July 4 and 11 • RICH WG meeting on august 27 • Vessel status (seeFerdi’s presentation last Tuesday) • MirrorSupport Status (V.Carassiti) • MirrorSupportPrototypes (G.Anzivino) • PM installation (M.Lenti) • RICH TDAQ status (M.Piccini, reported in the TDAQ summary)

  3. THE MIRRORS– FRONT VIEW V. Carassiti - INFN FE

  4. STABILIZING RIBBONS & MIRROR SUPPORTS V. Carassiti - INFN FE

  5. THE HOLES ON THE SUPPORTING PANELS V. Carassiti - INFN FE

  6. THE HOLES ON THE SUPPORTING PANELS - DETAIL TENSIONING RIBBON TRANSMISSION SUPPORT MIRROR SUPPORT (CONE) PLANE B V. Carassiti - INFN FE

  7. THE TENSIONING RIBBONS V. Carassiti - INFN FE

  8. THE HALF CENTRAL MIRROR TWO DOWELS V. Carassiti - INFN FE

  9. THE HALF CENTRAL MIRROR TENSIONING RIBBON (HORIZONTAL AXIS ROTATION) SLIDING DOWEL SYSTEM (VERTICAL AXIS ROTATION) MIRROR SUPPORT V. Carassiti - INFN FE

  10. THE SLIDING DOWEL SYSTEM - DETAIL KNOB SUPPORT FIXED DOWEL KNOB ACTUATING BAR SLIDING DOWEL MIRROR SUPPORT V. Carassiti - INFN FE

  11. THE HALF MIRROR IN PLACE V. Carassiti - INFN FE

  12. THE TOOLING ASSEMBLING THE MIRROR – FINAL UPGRADE V. Carassiti - INFN FE

  13. Prototype2.0 (1 mirror)

  14. Prototype2.0: done StabilizerRibbonadded

  15. Prototype 3.0 (3 mirrors) in preparation in Perugia HONEYCOMB PLATE MIRROR FRAME V. Carassiti - INFN FE

  16. MIRRORS ASSEMBLY – PUT THE MIRROR IN PLACE -1 INSERTION SYSTEM – UPDATED DESIGN THE INSERTION OF THE DOWEL INTO THE MIRROR’S HOLE HAS TO BE DONE CAREFULLY AFTER THE CONNECTION OF THE RIBBONS THE LIFTING FRAME IS DISMOUNTED AND THE INSERION SYSTEM CAN MOVE TO THE NEXT MIRROR THE INSERTION SYSTEM DOES HAVE 3 AXES MOTION THE MIRROR CAN’T BE HELD BY HAND DURING THE CONECCTION AND THE TENSIONING OF THE RIBBONS V. Carassiti - INFN FE

  17. GiuseppinaAnzivino Material procurementin Perugia • Honeycomb panel • order placed beginning of August • delivery expected mid september • Frame to host the panel • same as the panel • Insertion tool • in production, same delivery time • Order for aluminium for the whole production of cones and additional pieces for the mirror support • a little bit delayed, but • we have in the workshop the material necessary for the production of the pieces for the prototype

  18. Frontviewof RICH PM and electronics HV HV 16 X 32 CH HV FILTER SIG SIG PMT PMT SIG SIG HV HV SUPPORT SUPPORT 5x TEL62

  19. Super-CellsNumbering JURA side RACK I: 28 super-cells 7 up-boards 224 channels II: 33 super-cells 8+1/4 up-boards 264 channels I I I 16 FE up-boards (32 cheach) 512 chtotal 16 20 4 28 8 32 0 17 21 40 5 12 29 44 33 18 1 41 24 9 45 30 13 2 I II I V 6 36 19 52 42 10 25 14 31 48 3 37 7 53 22 43 60 26 11 15 49 34 61 23 38 54 65 27 16 FE down-boards (32 cheach) 512 chtotal 46 69 56 62 50 73 35 66 81 55 39 47 93 70 57 77 63 51 94 82 67 97 58 71 59 85 105 95 64 78 109 68 101 113 83 89 106 74 121 79 96 110 72 102 117 86 90 107 118 75 80 114 98 87 119 103 111 91 76 III: 33 super-cells 8+1/4 down-boards 264 channels 84 99 115 120 88 IV: 28 super-cells 7 down-boards 224 channels 104 92 112 116 100 108 Numberingischosentooptimizecablelenght and PM-Cratedistance Saleve side isequal (not specular) withrack on the right

  20. Supercell L R PMs are grouped in Supercellsof 8 PM each (tobeused in multiplicity trigger) Two HV channels (L and R) feedoneSupercell

  21. PM Lodgingdisks • Each disk has 976 holes; there are twolodgingdisks • In eachhole a thin o-ring 1 mm thick (13.5-17.5 mm Ø) isinserted in a gorge at the downstream end • Itis the arrestof the PM (and protectionagainstambient light from the back)

  22. New sockets (test sample) Signalcable withoutconnector HV connector New socket Thick o-ring (6 mm thick) A thick o-ring isinsertedupstreamofeachsocket+PMtokeepit in position, protectfrom ambient light and provide a goodthermalcontact

  23. PM+socketinsertion Upstreamviewof the disk Fixation bar inserted A fixation bar in insertedeverytworowsofPMs tokeepthem in position and facilitate the dissipation of the residualheatproducedby the sockets

  24. Work in cleanroom Readytoinstallall the PM+sockets

  25. Conclusions • Approachingfinal design of the mirrorsupport system • Intense prototypingongoing on the mirrorsupport: people training, detailschecking, etc • PM installation on the lodgingdisksstarted: first stepof a full (laser) test ofall the electronicschainbeforeinstallation at CERN • Some delay in RICH vessel construction

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