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LHCb MUON - ADDITIONNAL SHIELD BEHIND M5 – UNIT AREA

LHCb MUON - ADDITIONNAL SHIELD BEHIND M5 – UNIT AREA. 7 00. 2 00. 600. 600. Dimensions of 1 iron brick  100 x 100 x 200 mm3 1 ROW of 1200 mm length  12 iron blocks / row Shielding area 1200 x 700 mm2  7 x 12 = 84 iron blocks

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LHCb MUON - ADDITIONNAL SHIELD BEHIND M5 – UNIT AREA

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  1. LHCb MUON - ADDITIONNAL SHIELD BEHIND M5 – UNIT AREA 700 200 600 600 Dimensions of 1 iron brick  100 x 100 x 200 mm3 1 ROW of 1200 mm length  12 iron blocks / row Shielding area 1200 x 700 mm2  7 x 12 = 84 iron blocks Shielding area 4800 x 700 mm2  4 x 84 = 336 iron blocks Weight of 1 iron brick  15 kg Total weight of shield  5040 kg D.LACARRERE

  2. ADDITIONNAL IRON SHIELD BEHIND MUON CHAMBERS M5 2400 BELT (*) 700 IRON BLOCKS MF4 NO SCALE (*) Belt in order to fix the iron blocks – not yet defined D.LACARRERE

  3. STATUS 5 DECEMBER 2011 (in brief) • IRON BLOCKS : ~ 400 blocks available (250 at Pit2 + 150 at Pit8) ; non “TFA” • - RP CHECK : Ask for authorization to blast the blocks – corroded surfaces - on going • SURFACE TREATMENT (in preparation) : • a) blasting with special sand (garnet 30-60 mesh) – DAI 479609 08/11/2011 • b) painting before x-mas – drying during Christmas break. • SCHEDULE : • 1 - Blasting week 12/12/2011 • 2 - Painting week 19/12/2011 • 3 - Installation top of MF4 – mid-January 2012 (to be specified by Muon Group) D.LACARRERE

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