2. SDHCAL Integration Moi j’aime bien SAFARI
Ca perd to_ut son charme dès que c’est en angalis mais bon…

3. For SDHCAL the favorite mechanical structure is the one proposed by
Henri Videau
No projective cracks neither
in F nor in 
Distance between Barrel and
Endcaps is minimized since all
services are on the outer radius of
the barrel
Limited deformation

4. One wheel with 8 modules Stainless steel wheel Weight : 88 000 kg
Detectors weight : kg
Total weight :

5. Barrel with 5 wheels Stainless steel Ext. Diameter 6715 mm
Int. Diameter mm
Length 4800 mm
Barrel Weight : kg
Detectors weight : kg
Total weight : Kg

6. One module with 48 detectors
Stainless steel
Module Weight : kg
Detectors weight : kg
Total weight : Kg

7. One endcap with 4 modules
Stainless steel
Endcap Weight : kg
Detectors weight : kg
Total weight : kg
Mechanical structure needed

8. Hcal Ring
Two options: either the ring is attached to the barrel or to the endcaps.
The first option is more appropriate from the mechanical point of view but it is probably less adequate for inner detector services.
HCAL barrel
Endcap
ECAL barrel
HCAL ring
HCAL barrel
Endcap
ECAL barrel

9. DHCAL
emax = 0.15 mm

10. DHCAL + ECAL
Fixing line
DHCAL + ECAL-8-3 g
emax = 0.35 mm

11. Mounting BARREL Each of the 5 sectors of the barrel will be
built in horizontally
Then using appropriate tooling, wheels will be put
vertically and mounted on the insertion machine
ENDCAPs
The same strategy as for the barrel can be
followed. One possible scenario is to build the
4 quarters separately before to mount them on
the insertion machine
Service cabling will be performed on the insertion
machine.
The best scenario is to perform the mounting in two
steps for the barrel: 2+3 wheels

12. Insertion machine:
The insertion machine should have a rotating movement so
the cassettes insertion and cabling can be done easily:
Ex: cassette vertical insertion

14. Services Services: Cooling, Gas, HV,LV.. To be implemented
from the outer radius for both barrel and endcaps.
They will be taken out though the aperture between
Barrel and endcaps

15. Integration
Both barrel and endcaps will be fixed on the corresponding cryosta. Magnetic field
effect on the endcaps is to be taken into account (learning from CMS)

16. Summary Groups involved in SDHCAL option are working to
propose a robust mechanical structure and a
realistic integration scheme taking into account the
CMS experience.
A lot of work still to be done for the ENDCAPS
The services cables of SDHCAL has almost
no consequence on the ILD simulation