ILD requirement for assembly space and time 2015/11/3 Yasuhiro 1

Introduction Recent status –Limitation on the transportable weight has become clear (usually ~20t, >20t with special permission)  Impact on iron yoke / HCAL assembly –Assembly scenario of sub-detectors is getting clear –ILC Infrastructure & Planning Working Group requires us to clarify the requirements for infrastructure General assembly plan of ILD has to be updated to cope with these changes Sub-detector assembly scenario has to be clarified more to make a detailed design of ILC campuses (Central campus and IP campus) 2

IRON RETURN YOKE ASSEMBLY 3

Assembly scenario Yoke assembly scenario has to be changed –Originally, it was assumed that ~200t blocks (1/12 of a ring) are made at a factory and shipped to the interaction point (IP) –It was turned out that transportation of yoke blocks of ~200t is almost unrealistic –It seems we have to assemble the yoke blocks from iron slabs on site New space for yoke block assembly is necessary on or near IP campus 4

Assembly scenario There are three options 5 Iron slabs  Block Block  Yoke ring Iron slab storage Iron slabs  Block Block  Yoke ring Iron slabs  Block Block  Yoke ring Iron slabs Factory Remote campus IP campus Pre-assembly hallAssembly hall Special trailer Reinforced road Kitakami area

Assembly scenario 1 st option –Size of the pre-assembly hall depends on necessary storage space –If fabrication company can ship iron slabs in “Just-in-time” (JIT) manner, minimum storage space for pre-assembly of one or two blocks is needed on IP campus  cost effective 2 nd option –If fabrication company cannot ship iron slabs “just-in-time”, we need quite large storage space, which requires some storage space on or outside IP campus –Minimum space for pre-assembly of one block on IP campus 3 rd option –No need for additional building on IP campus –Relatively large assembly hall with 250t crane on remote campus –Requires a special trailer and reinforced road to IP campus –Highest cost 6

Yoke pre-assembly hall A possible conceptual design in option 1 or 2 –Relatively small crane to lift up iron slabs (capacity<20t, TBD) –Yoke block is assembled on a pallet which moves by air pads –Completed block is slid to AH –We need 2 or 3 pallets (1 for block assembly, 1 or 2 for stand-by for installation in main AH) –Also used as loading area for sub-detector (Endcap CAL, Muon) modules (another pallet would be necessary) 7

ASSEMBLY OF OTHER SUB- DETECTORS 8

Discussion at ALCW2015 In ALCW2015 at KEK in April, we had a meeting to discuss sub- detector assembly scenario There were presentations on VTX/Si tracker, TPC, ECAL, AHCAL, and SDHCAL The discussion continued in ILD Topical Integration Meeting in Oct. 9 Space requirement for assembly and testTrailer Si trackers ~150m 2 clean room on IP campus and/or Central campus TPC~200m 2 / 0m 2 clean room on Central campus ~100m 2 / 200m 2 clean room on IP campus ECAL~1000m 2 space with crane on Central campus or on/near IP campus 15 t HCALAHCAL option ~200m 2 air-conditioned space on Central campus or IP campus 20 t SDHCAL option ~1200m 2 space on/near IP campus11 t or 125 t

Some consideration Space for muon detector is not considered yet ECAL and SDHCAL groups assume parallel assembly of the barrel part and the endcap part –Barrel part and endcap part can be assembled in series to reduce the space requirement (?) –But still large space is needed even with series assembly Transportation of 125t ring of SDHCAL is a big challenge Additional assembly hall for HCAL is necessary on or near IP campus (<1km) Required assembly space for trackers (Si trackers and TPC) are relatively small, and can be located in the research office building 10 ~15t ECAL stave~125t SDHCAL ring

Research Office Building at IP Requirements for the research office building –Control rooms of experiments –Meeting rooms –Clean rooms for Si (and TPC) –Office rooms –Laboratory space equipped with a crane and flammable gas ventilation (TPC) An example design was presented at SiD workshop at SLAC in January, but there were strong criticisms –Too gorgeous (too many office rooms) –Assembly space for sub- detectors is too small 11

Example of ROB at KEK 3 rd building (Sangokan) –7F –Many office/meeting rooms –Large conference room –No lab space –No crane –High cost Advance Instrumentation Lab –2F/1F –Large lab space 5t crane Gas can be used (CO2, Liq. Ar, Liq. Xe) –Some office space –Meeting room 12

Advance Instrumentation Lab at KEK 13 20m 13.5m Work shop More office rooms in 2F

Advance Instrumentation Lab at KEK 14

A possible design of ROB on IP campus 15 1F 2F Lab Workshop Control room Clean room Entrance hall 70m 25m 18m 14m Office rooms for Si/TPC/DAQ (Office space for CAL groups in HCAL assembly hall)

IP campus layout 16 Research Office bldg. 25m x 60m 1500m2 Cooling Towers 20 units Cooling Towers for CGP 5 units He Gas tanks 1,600m3 Integrated Utility bldg. 40ｍ x 100m Cryogenic plant 40m x 30m Utility plant 40m x 40m Electric facility 20m x 20m Shaft entrance space 40m x 30m Parking space Assembly bldg. 27m x 181m Emergency Generator 20m x 20m Based on Nishimoto-san’s slides Very limited free space Track of trailer

IP campus with 600m 2 HCAL-AH 17 Research Office bldg. Cooling Towers 20 units Cooling Towers for CGP 5 units He Gas tanks 1,600m3 Integrated Utility bldg. 40ｍ x 100m Cryogenic plant 40m x 30m Utility plant 40m x 40m Electric facility 20m x 20m Shaft entrance space 40m x 30m Parking space Assembly bldg. 27m x 181m Emergency Generator 20m x 20m Yoke pre-assembly building HCAL assembly hall Space here is necessary for coil transportation (trailer) Based on Nishimoto-san’s slides

Open questions Yoke –JIT possible ? –Size of yoke pre-assembly building: 20mx20m? –Capacity of the crane: 20t ? Muon detector –Location of module storage/test space: Central campus or IP campus? (Probably Central campus) –Size of the storage/test space (size for one sector (1/12) of a yoke ring would be enough) ECAL –Location of module storage/test space: Central campus or on/near IP campus? –Reduction of the size (1000m 2 ) possible? (Endcap and barrel in series) SDHCAL –Location of module storage/test space: on or near IP campus –Reduction of the size (1200m 2 ) possible? (Endcap and barrel in series) AHCAL –Location of module storage/test space: Central campus or IP campus? (probably IP campus) 18

ILD ASSEMBLY TIMELINE AND PROCEDURE 19

Update of ILD assembly timeline Assumption –New timeline for CFS Ground breaking (GB) 4 years after project approval AH becomes ready ~2.5 years after GB DH becomes ready ~6.5 yeas after GB –Yoke module assembly and ring assembly in parallel –CMS style solenoid assembly 1/3 coil modules are delivered to AH, and assembled into one coil Outer vacuum tank and inner vacuum tank are also fabricated in AH from smaller pieces –Magnetic field measurement on surface after barrel ECAL installation –TPC and silicon inner trackers are installed after lowering the detector to DH –AH is used only for iron yoke assembly, solenoid assembly, and installation of ECAL, HCAL, solenoid, and muon detector –AH has a 250t crane and an 80t crane for ILD –Installation period of each sub-detector is based on TDR 20

Gantt chart

Simplified table Definition of T0 here is the beginning of the land development = Ground Breaking (consistent with CFS group) 22

Assembly procedure Summary of tasks at each step 23 YB0: Central barrel yoke YB+: Barrel yoke on + side YB-: Barrel ypke on – side YE+: Endcap yoke on + side YE-: Endcap yole on – side OVT: Outer Vacuum Tank IVT: Inner Vacuum Tank

Magnet high field test We assume full current test with all iron yoke rings and the magnetic field measurement can be done after barrel CAL installation, because assembly of yokes YB+ and YB- can be completed quite late This procedure has a risk of uninstalling barrel CALs if something wrong is found in solenoid If iron yoke assembly can be done in much shorter time (~4y  ~3y), we can avoid this risk by installing barrel CALs after full current test of the magnet  Discussion with manufacturer would be indispensable for more reliable scheduling and cost estimate 24

SUMMARY 25

Summary Yoke pre-assembly hall attached to main AH is necessary Iron slab storage building might be necessary on or off IP campus if “just-in-time” delivery of iron slabs cannot be done HCAL assembly building is necessary on (or near) IP campus Assembly and test of Si trackers and TPC can be done in Research Office Building on IP campus More detailed study and discussion are necessary to fix the size of these buildings (There is a possibility of new IP campus site with larger area) ILD timeline has been re-considered to cope with the change of iron yoke assembly scenario Still possible to complete detector integration in 9 years Each sub-detector group will study the assembly timeline more in detail, and the timeline will evolve Discussion with iron yoke manufacturing company is indispensable to establish both space requirement and schedule 26

BACKUP SLIDES 27

Step 1 Platform construction YB0 Yoke assembly Coil assembly preparation 28 Yoke pre-assembly building

Step 2 YE+ Yoke assembly YB0 outer vacuum tank (OVT) assembly Coil assembly 29

Step 3 YE- Yoke assembly YE+ Muon detector installation Inner vacuum tank (IVT), Coil assembly 30

Step 4 YE- Yoke assembly YB0 Muon detector installation YE+ Calorimeter installation IVT, Coil assembly 31

Step 5 YB+ Yoke assembly YE- Muon detector installation YE+ Calorimeter cabling Coil, IVT installation 32

Step 6 YB+ Yoke assembly YE- Calorimeter installation Coil, IVT installation 33

Step 7 YB- Yoke assembly YB+ Muon detector installation YE- Calorimeter cabling YB0 Calorimeter installation 34

Step 8 YB- Muon detector installation YB0 Calorimeter installation 35

Step 9 YE-, YB-, YB0, YB+, YE+ shuffle the position 36

Step 10 Close the detector Field mapping 37