Assembly scenario of ILD Si trackers 2015421 Yasuhiro

Assembly scenario of ILD Si trackers 2015/4/21 Yasuhiro Sugimoto @ALCW 2015 1

Outline • Introduction • Status of ILC campus design • Assembly scenario of ILD Si trackers 2

Introduction • ILC campus design (Central campus and IP campus) of ILC Laboratory is discussed in – ILC Infrastructure & Planning Working Group – CFS group • Input from detector groups are necessary to clarify the requirements for facilities in each campus; – Laboratory space for final assembly and test of sub-detectors (Clean rooms) – Workshop and warehouse – Office space – Cafeteria – Dormitory – …………. • These requirements depend on the assembly scenario of subdetectors, and the number of people working at each campus • Each sub-detector should clarify the assembly scenario and the requirements for these facilities 3

STATUS OF CAMPUS DESIGN 4

Central campus and IP campus • We will have a central campus near Shinkansen station and a satellite (IP) campus just above the interaction point • Area of IP campus is limited, while Central campus would have relatively large area • There are two options of the location of Central campus – ~30 km away from IP campus (~50 min by car) – ~5 km away from IP campus (~10 min by car) – (cf. Distance between CMS and CERN ~15 km, ~20 min) • Function of each campus for assembly of each subdetector should be defined (for each option, if necessary) 5

A tentative design of IP campus (from presentation by M. Miyahara) 6

A tentative design of IP campus • Underground detector hall (from presentation by M. Miyahara) 7

A tentative design of IP campus • Surface buildings (from presentation by M. Miyahara) 8

Assembly hall • For ILD, assembly hall is used for – Iron yoke assembly – Solenoid assembly and installation – Installation of HCAL, ECAL, and Muon detector – Field mapping • Assembly and test of subdetectors should be done in Central campus or in the research/office building in IP campus 9

Central campus • Preliminary conceptual design exists – Functions and area of facilities are tentatively listed up – Details of each facility are not designed yet n i il m e r P (M. Miyahara, AWLC 14) y r a

Central campus (M. Miyahara, AWLC 14) 11

ASSEMBLY SCENARIO OF ILD SILICON TRACKERS 12

ILD Si trackers • Si trackers inside TPC – Inner tracking system – – – Vertex detector (VTX) Silicon Inner Tracker (SIT) Forward Tracking Disks (FTD) VTX is supported from beam pipe SIT, FTD, and beam pipe are supported from Inner Support Structure • Si trackers outside TPC – Silicon External Tracker (SET) – Endcap Tracking Detector (ETD) – Supported from TPC or ECAL 13

Inner Tracking System 14

Assembly scenario 1 -a Sensor chip RO ASIC Ladders Detector hall Clean room in research building CFRP ladder base VTX half barrels Support structure Beam pipe SIT half barrels . . . Company ITS Final check ILD FTD half disks University / Institute IP campus 15

Assembly scenario 1 -b Sensor chip RO ASIC Ladders CFRP ladder base Clean room in research building Detector hall VTX half barrels Support structure Beam pipe SIT half barrels . . . Company ITS Final check ILD FTD half disks University / Institute Central campus IP campus 16

Assembly scenario 1 -c Sensor chip RO ASIC Ladders CFRP ladder base Clean room in research building Detector hall Final check ILD VTX half barrels Support structure Beam pipe SIT half barrels . . . Company ITS FTD half disks University / Institute Central campus IP campus 17

Assembly scenario 2 -a Sensor chip RO ASIC Ladders CFRP ladder base Support structure Clean room in research building Detector hall VTX half barrels Beam pipe . . . Company SIT half barrels ITS Final check ILD FTD half disks University / Institute IP campus 18

Assembly scenario 2 -b Sensor chip RO ASIC Ladders Clean room in research building CFRP ladder base Support structure Detector hall VTX half barrels Beam pipe . . . Company SIT half barrels ITS Final check ILD FTD half disks University / Institute Central campus IP campus 19

Comparison of scenarios • Examples – Belle-II SVD: (a la 1 -a) • Ladders are assembled in universities & institutes • Ladders are shipped to KEK, and full barrel is assembled at KEK – CMS Silicon Tracker: (a la 2 -b) • TIB, TOB, TID, TEC are assembled in universities & institutes including CERN • These modules are assembled into a Silicon Tracker at Tracker Integration Facility (350 m 2) at CERN main campus • Silicon Tracker is transported overnight to Point 5 for installation – ATLAS Inner Detector: (a la 2 -a) • Sensor modules are assembled in universities & institutes • SCT barrel is assembled in Oxford University • SCT barrel is shipped to CERN inner detector integration facility • CMS Silicon Tracker Less number of transport is preferable – Less risk of damage – Inspection/test is necessary after each transport • But transportation is manageable – Many examples such as detectors for LHC • It seems there is no show-stopper in every scenario Shipping container for ATLAS SCT barrel 20

Space requirement 5 m 5 m • We could build Silicon Tracker Integration Facility either in Central campus (1 -b, 1 -c, 2 -b) or IP campus (1 -a, 2 -a) • Even in case of 1 -b, 1 -c, and 2 -b, a similar space, which can be shared with other sub-detector, would be necessary for maintenance or temporally storage VTX SIT ITS (Small hoist here) FTD A possible layout of Silicon Tracker Integration Facility (150 m 2) 15 m 21

Si trackers outside TPC • Assembly scenario depends on the support scheme – From TPC? (baseline in TDR) – From ECAL? • We cannot draw the assembly scenario unless we decide the support scheme and the assembly scenario of supporting detector is clarified 22

Summary • ILC laboratory will have Central campus and IP campus • Requirements for facilities of each campus should be clarified for each sub-detector based on the assembly scenario • ILD Si inner tracking system can have several options of the assembly scenario, and we have to continue discussion to decide the best way • Assembly scenario of ILD outer Si trackers can be decided only after decision of supporting scheme and assembly scenario of the supporting sub-detector (TPC or ECAL) 23