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MUCH geometry created with create_MUCH_geometry_v21a_lmvm.C
Global Variables:
MuchCave Zin position = 125 cm
Acceptance tangent min = 0.1
Acceptance tangent max = 0.466
Absorbers
-----------
Total No. of Absorbers: 5
First abosrber is divided into two halves.
First half inserted inside the Dipole Magnet.
Second half is made of Low Density Graphite + Concrete.
Total No. of Pieces: 7
AbsPieces Position[cm] Thickness[cm] Material
--------------------------------------------------------------
1 133 16 LD Graphite
2 147 12 LD Graphite
3 168 30 Concrete
4 225 20 Iron
5 275 20 Iron
6 330 30 Iron
7 427 100 Iron_fifth
Shielding
-----------
No. of Shields: 6
Inside the Abs I, Shielding divided into two parts.
Shield No. Z_In[cm] Z_Out[cm] R_In[cm] R_Out[cm] Material
--------------------------------------------------------------
0 125 153 7.375 12.4999 Al
1 153 183 8.579 15.2999 Pb
2 215 235 12.965 21.4999 Al
3 265 285 15.515 26.4999 Al
4 315 345 18.065 31.4999 Al
5 377 477 25.00 25.00 Al
Stations
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No. of Stations: 4
First two stations (1,2) are made up of GEM and last two stations (3,4) are made up of RPC.
Passive material implemented in GEM modules. Ar:CO2 (70:30) is used as active gas.
12 mm thick Al plates are used for support and cooling in the GEM modules.
2 mm thick Aluminum plates are used for support in the RPC modules behind the active area. 10 mm thick Aluminium at the boundaries as the frame.
Drift and read-out PCBs (copper coated G10 plates) inserted for realistic material budget for both GEM and RPC modules.
#Station #Layers Z[cm] #Sectors ActiveLz[cm]
--------------------------------------------------------------
1 1 190 16 0.3
1 2 200 16 0.3
1 3 210 16 0.3
2 1 240 20 0.3
2 2 250 20 0.3
2 3 260 20 0.3
3 1 290 18 0.2
3 2 300 18 0.2
3 3 310 18 0.2
4 1 350 20 0.2
4 2 360 20 0.2
4 3 370 20 0.2