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16 January 2012D.LACARRERE3 STATUS 5 DECEMBER 2011 (in brief) - IRON BLOCKS : ~ 400 blocks available (250 at Pit 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 mesh) – DAI /11/2011 b) painting before X-MAS – drying during Christmas break. - SCHEDULE : 1 - Blasting week 12/12/ Painting week 19/12/ Installation top of MF4 – mid-January 2012 (to be specified by Muon Group)
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D.LACARRERE 1
LHCb MUON - ADDITIONNAL SHIELD BEHIND M5 – UNIT AREA
600 600
700
Dimensions of 1 iron brick 100 x 100 x 200 mm31 ROW of 1200 mm length 12 iron blocks / rowShielding area 1200 x 700 mm2 7 x 12 = 84 iron blocksShielding area 4800 x 700 mm2 4 x 84 = 336 iron blocksWeight of 1 iron brick 15 kgTotal weight of shield 5040 kg
200
16 January 2012
D.LACARRERE 2
ADDITIONNAL IRON SHIELD BEHIND MUON CHAMBERS M5
BELT (*)
IRON BLOCKS
MF4
16 January 2012
(*) Belt in order to fix the iron blocks – not yet definedNO SCALE
2400
700
HALF SHIELD – SCHEMATIC VIEW
D.LACARRERE 316 January 2012
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 416 January 2012
16 JANUARY 2012 (in brief)- IRON BLOCKS : ~ 363 blocks available (208 from Pit2 + 155 from Pit8) ready to send to the firm for cleaning & painting just before X-MAS; BUT Unfortunately the last radiological check performed on 19 Dec. 2011 revealed that a few blocks from the batch Pit2 were TFA (unexpected ). Transfer to Firm (MENONI -74 SCIENTRIER) scheduled for 20/12/2011 was stopped. Systematic RP control of all the blocks (all faces) was required by the CERN/RP Group. Systematic RP Control performed by RP Group on 10 January 2012 at Pit8 ; 46 blocks from the batch (Pit 2) were classified TFA as suspected before X-MAS; in order to replace these TFA blocks 50 additional blocks (non-TFA) were recovered (from BA7 & Area 19) NOW we have 390 blocks dedicated to MUON filter, available for cleaning & painting. Transfer of the 390 blocks to be treated outside CERN (MENONI Company) was performed on 16 January 2012 (am) as scheduled. Return of blocks to CERN : Progressively , last batch expected for Fri. 10 February 2012. Installation behind M5 (end) : Week 07 from 13 to 17 Feb. 2012.
UPDATED STATUS
D.LACARRERE 516 January 2012
ADDITIONNAL IRON SHIELD - FIXATION (PROPOSAL)
400 400
800
350
700
180
200
NO SCALE
20
20
MF4
CONCRETEBEAM
CONCRETE SUPPORT
ADDITIONAL SHIELD
METALLIC SHEETS
BELTS
25
180
SIDE VIEW 780
EXISTING HOLES
STEEL WEDGE 25 MM
D.LACARRERE 616 January 2012
ADDITIONNAL IRON SHIELD - FIXATION (PROPOSAL)
FRONT VIEW
MF4
5900
4800
NO SCALE
BEAM AXISCONCRETE BEAM
ADDITIONAL SHIELD
700
COVER METALLIC SHEET
SAFETY BELTS
D.LACARRERE 716 January 2012
ADDITIONNAL IRON SHIELD - FIXATION (PROPOSAL)
TOP VIEW
MF4
5900
4800
NO SCALE
BEAM AXISCONCRETE BEAM
ADDITIONAL SHIELD
700
COVER METALLIC SHEET
SAFETY BELTS
920 25402540
D.LACARRERE 816 January 2012
RECAPMATERIAL & EQUIPMENT NEEDED
336 steel blocks 100 x 100 x 200 mm3 (*) 2 steel sheets 600 x 300 x 15 for fixing belts (side beam) Steel wedges : 1200 x 180 x 25 ; 4 pieces Cover sheets (L shape) : 600 x 720 thick = 10 ; 2 pieces Cover sheets (L shape) : 300 x 700 thick = 10 ; 2 pieces2 belts ( 7 m long)
(*) DAI 4839860 (3500 EUR) 11/01/2012 – CA1554907 23/12/2012 (MENONI)
