1. RPC SYSTEM LAYOUT and DIMENSIONS
M. Shariq Khan
National Center for Physics
Quaid-e-Azam University, Islamabad
PAKISTAN

2. CONTENTS Geometrical Layout of CMS End Cap RPCs Chamber Sizes
Patch panel
Mountings
FEB cooling & gas circuit on RE 2/2
Summary

3. GEOMETRICAL LAYOUT OF CMS END CAP RPCs
Chamber Data
Chamber Geometrical Data
Gaps Details
Strips Geometry for  segment for a,b,c,d

4. No. of channels/chamber
CHAMBER DATA RE
1/1
1/2
1/3
RE 2/1
RE 2/2
RE 2/3
RE 3/1
RE 3/2
RE 3/3
4/1
4/2
4/3
(Plus & Minus Z)
36*2
18*2
 Segments 4 3 2
 Coverage, deg. 10 20
Strips/ Segment 32 64
No. of channels/chamber
128 96
256
192
No. of chambers

5. Chamber Geometrical data
No. of chambers

6. Gap Geometrical data
No. of chambers

7. Strip data
No. of chambers

8. RE 1/1 Mounting

9. RE 1/1 Mounting

10. RE 1/1 Mounting

11. RE 1/2 Mounting

12. RE 1/2 Mounting

13. RE 2 Mounting

14. RE 2 Mounting

15. RE 4/1 Mounting

16. Patch Panel

17. FEB Cooling

18. ANALYSIS 1

19. ANALYSIS 2

20. ANALYSIS 3

21. ANALYSIS 4

22. ANALYSIS 5

23. ANALYSIS 6

24. ANALYSIS 7

25. ANALYSIS 8

26. Summary Gaps with the specified geometrical dimensions have already
been built and tested.
Holes for RE 1/1 rails and mounting brackets already drilled
on HE back flange (- side ). Rails have been installed.
Mounting holes for RPCs on YE1 & YE3 have been drilled
for stations 2 & 3.
RE 1/2 are attached to CSCs, RPC staggering follows CSCs.
RE 1/3 mounted under CSCs, 110 mm off YE1 to accommodate
cable trays.
Position of RE 4 mounting holes on shielding wall determined.