1. Final Design
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

2. Layer_3 East Side West Side
Anode
Permaglas Rings
Readout
Electronics
Gem_3
East Side
Gem_2
West Side
Gas Connector
Gem_1
Cathode
H.V. board
Sevice Flange
In the Layer_3 the electronic readout size has been reduced and we have changed the geometry of the Service Flange.
Now a total length of detector is mm.
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

3. Layer Assembly Connecting Bracket to connect L2 to L3
The three layers are mechanically fixed
by flanges and brackets
Connecting Flange
to connect L1 to L2
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

4. Fixing Detector East Side West Side Supporting Flange Supporting
The detector is fixed by two Supporting Flanges that have a dual function: the outer diameter fastening the detector and the beam pipe the inner diameter aligns the beam pipe with beam
Beam Pipe
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

5. Supporting Flange
Assuming a total weight (detector + beam pipe) of 200 Kg we get a max Stress of 22 Mpa and a Total Deformation of 0,19 mm
Safety Factor
𝛾= 𝜎 𝑠 𝜎 𝑒𝑞 ≅10
Material:
Permaglas EPGC203
𝜎 𝑦 =240 MPa
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

6. West Side Space Available
New ring
thickness 2mm
In the West side we have 2,6 mm
from the board to the New Ring
Sealing cylinder
New Ring
Remained west flange
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

7. East Side Space Available
First ring of outer chamber
East flange
East flange
In the East side we have 4,6 mm
from the board to the East flange
Sealing cylinder
East flange
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE

8. Radial Space Available
Sealing cylinder
Considering a thickness of 1 mm sealing cylinder
we get a gap of 1.8 mm from detector to cylinder
CGEM Workshop HIEP, 14/03/2017
M. Melchiorri - INFN FE