olympus collaboration meeting luminosity monitor symmetric möller/bhabha calorimeter david...
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OLYMPUSCollaboration Meeting
Luminosity MonitorSymmetric Möller/Bhabha
Calorimeter
David Rodríguez PiñeiroDavid Rodríguez PiñeiroHIM / Mainz UniversityHIM / Mainz University
OLYMPUS Collaboration MeetingOLYMPUS Collaboration MeetingDESYDESY
26. 04. 201126. 04. 2011
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
1.- New Beam Pipe Design
2.- New SYMB Design
3.- Main Support
4.- Interferences
5.- Summary
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
1.– New Beam Pipe Design
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Cone pipe with SYMB windows:
Difficult and expensive to manufacture
Traditional design
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Windows shorter
Cone (due to Wakefield suppressor) inside the beam pipe
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
2.– New SYMB Design
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Shifted ~350 mm upstream
Adapted to the new enviroment
Collimator and Lead Wall not aligned
Boxes move away from the beam in diagonal
Alignment system reordered
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
In the new position
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Safety Factor: SF
Total Displacement: TD
SF > 7
TD < 0,05 mm
SF > 8
TD < 0,04 mm
SF> 6
TD: 0,0007 mm
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Hallo Counter
Further check
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
3.– Main Support
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Will fit with this shape
Will be made out of standard aluminum profiles
Adaptad to the new enviroment
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Longer in Z
Still laying on the tubular supporting beams
Due to interferences it will be mounted in place
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
4.– Interferences
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SYMB
OLYMPUS
No clash detected
Just 0 contact on the tubular supporting beams
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Top View
MWPC
ToF Frame
Beam Pipe
Coils Frame
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Tight clearances, but feasible
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Mounted in place
Optimized design to avoid overlapping parts
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Cables to the ceiling?
Tubular support attached to ToF frame
Flasher box?
Flasher box
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
New beam pipe design => New SYMB design
New position: ~350 mm upstream
Not interference with other subsystems (Hallo
Counter study)
Attached to the tubular supporting beams
(longer in Z towards the beam)
Summary
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Symmetric Möller/Bhabha Symmetric Möller/Bhabha
Personal Contact:
[email protected]: +49 (0) 6159171/1634
web.mit.edu/OLYMPUS
Thank you!
Frank Maas
Sebastian Baunack
Dmitry Khaneft
Boris Gläser
Eric Göbel
Yue Ma
Roberto Pérez