AHCAL assembly in ILD Karsten Gadow Detector assembly

AHCAL assembly in ILD Karsten Gadow Detector assembly discussion at ALCW 2015 KEK, 21. 04. 2015

AHCAL assembly in ILD based on CMS style ! Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 2

AHCAL barrel in ILD CMS style: • yoke, coil and calorimeters and…. mounted at the surface • after testing the hole structure will be lowered into the experimental hall Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 3

AHCAL half barrel absorber installation step 1 • mounting 16 AHCAL submodules to a full half barrel in front of the cryostat • submodule connection by plates from the front and back side • AHCAL half barrel is supported by two rails inside the cryostat vessel Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 4

AHCAL barrel integration step 2 • push the first AHCAL half barrel into the cryostat • the second AHCAL half barrel can be pushed trough the cryostat first, if it is necessary • push/pull system existing Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 5

AHCAL barrel integration step 3 • install sensitive layers with frontend electronics Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 6

AHCAL barrel integration sensitive layer • • test beam setup in ILD absorber submodule scintillator tile array • very frontend readout with Si. PMs Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 7

AHCAL barrel integration step 4 • install the AHCAL barrel cabling and cooling • continue with the second AHCAL half barrel Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 8

ECAL barrel integration • install ECAL modules • the middle ECAL modules can be installed only if the second AHCAL half barrel is installed • 8 supply slots for ECAL Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 9

AHCAL barrel integration tools 18 t • 18 t • • lifting and turning tool for AHCAL barrel absorber submodules available • 2 x 18 t capacity • operation with 2 hooks (z angle adjustment) • precise motor controlled turning • design for adaptation for sub-modules with and without sensitive layers started mounting, support and insertion frame • one frame for everything • design depends on installation procedure push and pull tool available • must be modified to the rail distance and rail shape/size Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 10

AHCAL end cap installation step 1 • AHCAL tower • book shelf fixation Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 11

AHCAL end cap installation step 1 • 14 x AHCAL towers for half end cap Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 12

AHCAL end cap installation step 2 • install the AHCAL end cap cabling and cooling • continue with the second AHCAL end cap Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 13

AHCAL assembly in ILD installation scenario • the CMS style does not work for the Japanese site…. • … everything has to be transported through a tunnel with a slope • the biggest single piece will be the cryostat of the coil!. . . ? • the assembled AHCAL half barrel will be bigger than the coil due to the necessary transport support structures (and to heavy for the tunnel slope) • the AHCAL half barrel assembly must be done in the experimental hall • the assembly of the AHCAL half barrel can be done in the experimental hall with the same sequence and tools as in the CMS style • the installation and testing of the sensitive layers and frontend electronics for the AHCAL submodules and AHCAL towers is very time consuming • AHCAL submodules and towers can be already equipped with sensitive layers and pretested anywhere in the world • after transportation to the experimental site, the AHCAL submodules and towers must be tested before the AHCAL barrel and endcap installation • laboratory space and infrastructure must be available close by the experimental site Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 14

AHCAL assembly in ILD installation schedule • detailed schedule for the AHCAL installation at the Japanese site is existing since mid 2012 • the critical path during the AHCAL barrel installation will be the crane usage in the experimental hall • if the AHCAL detector will get 100% priority of crane usage, the installation of the hole AHCAL barrel will take 180 days • the installation of the AHCAL end caps will take nearly the same time, if there will be the same priority as for the AHCAL barrel. • an parallel installation of AHCAL barrel and AHCAL endcap could be possible, if there would be enough installation space • to fulfill such a tight installation schedule, a professional testing and storing of equipped submodules and towers, supported by an equivalent infrastructure, is needed Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 15

AHCAL assembly in ILD experimental site requirements • experimental site must be reachable by standard trucks with 20“ containers and a payload of 20 t under convenient conditions • the AHCAL test hall must be passable with trucks like above • the AHCAL test hall must be equipped with 2 x 20 t gantry cranes • the two crane hooks must reach a distance of 2, 5 m between each other and a height of 6 m over ground • the operational area of the cranes for the AHCAL must be 10 m (crane bridge) x 20 m load area 4 x 8 m / AHCAL test area 6 x 8 m / AHCAL storage area 10 x 12 m • the AHCAL test area must be air conditioned • cooling water (16°C, 2 bar, 50 l/min) must be supplied to the AHCAL test area • electrical power 4 x (3 phase x 400 V / 50 Hz, 32 A) must be supplied to the AHCAL test area • workshop (5 m x 10 m with a height of 3, 5 m) for sensitive layer repair directly at the AHCAL test area • 4 offices with 20 m² directly at the AHCAL test area • 1 wending machine for food and drinks close to the test area and the offices …ok, I will stop here! Thanks for listening… Karsten Gadow | Detector assembly discussion | 21. 04. 2015 | Page 16