PANDAMechanical WorkshopBackward Endcap Calorimeter
Geometry
David Rodríguez PiñeiroDavid Rodríguez PiñeiroGSI DarmstadtGSI Darmstadt
PANDA Mechanical WorkshopPANDA Mechanical WorkshopGSIGSI
02. 04. 200902. 04. 2009
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Backward Endcap EMCBackward Endcap EMC
1.– Requirements- Boundary Conditions- Dimensions
2.– Geometry & Setting- Geometry- Interaction with STT- Interaction with MVD- Interaction with Beam Pipe
3.- Next Step- Fixing in the Assembly
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Distance Target-BW Endcap 560 mm
Maximum Outer Radius 448 mm
Minimum Inner Radius 150 mm
Boundary Conditions 1.– Requirements
- Boundary Conditions
- Dimensions
2.– Geometry
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Crystals Dimensions Straight Geometry
Length 200 mm
Face 24,4x24,4 mm(barrel smallest back face crystal)
Picture
1.– Requirements
- Boundary Conditions
- Dimensions
2.– Geometry
3.- Next step
4.- Summary
Dimensions
Straight Geometry: 0,6284 str
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Backward Endcap EMCBackward Endcap EMC
2.– Geometry & Setting
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Geometry 1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
540 Crystals
424 Crystals
488 Crystals
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Backward Endcap EMCBackward Endcap EMC
Interaction with the STT (I.a)
Ring: Same volume
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Interaction with the STT (I.b)
Carbon Fibre Tray
Fulfils the STT Cabling requirements
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Interaction with the STT (II.a)
Different Outlet
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Interaction with the STT (II.b)
Carbon Fibre Tray
Fulfils the STT Piping requirements
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Interaction with the STT (III) 1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Interaction with the MVD
Space
Beam Pipe-BW Endcap
54.821 mm2
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Interaction with the Beam Pipe (I)
Maximum Angle from the Target
17,17º
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
First Crystal starts at
R183,50 mm (z=-594)
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Interaction with the Beam Pipe (II)
Beam Pipe Flange 1100 mm from the Target
1.– Requirements
2.– Geometry & Setting
- Geometry
- Interaction STT
- Interaction MVD
- Interaction Beam Pipe
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
3.– Next Step
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Fixing in the Assembly
Hold the Endcap in 4 or 8 Points in the Backward DIRC Support Ring
1.– Requirements
2.– Geometry & Setting
3.- Next step
- Fixing the Assembly
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Geometry: Cutting in 4 sides (up-down-left-right)
Space for the STT (Cabling & Piping): Enough
Space for the MVD (Cabling & Piping): To Discuss
Angle for the Beam Cone: 17,17º Maximum
Fixing: In the Backward DIRC Support
Summary 1.– Requirements
2.– Geometry & Setting
3.- Next step
4.- Summary
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Backward Endcap EMCBackward Endcap EMC
Personal Contact:
[email protected]: +49 (0) 615971/1634
www-panda.gsi.de
Thank you!