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OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro David Rodríguez Piñeiro HIM / Mainz University HIM / Mainz University OLYMPUS Collaboration Meeting OLYMPUS Collaboration Meeting DESY DESY 26. 04. 2011 26. 04. 2011

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Page 1: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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

Page 2: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 22

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

1.- New Beam Pipe Design

2.- New SYMB Design

3.- Main Support

4.- Interferences

5.- Summary

Page 3: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

1.– New Beam Pipe Design

Page 4: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Cone pipe with SYMB windows:

Difficult and expensive to manufacture

Traditional design

Page 5: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Windows shorter

Cone (due to Wakefield suppressor) inside the beam pipe

Page 6: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

2.– New SYMB Design

Page 7: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 77

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

Page 8: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 88

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

In the new position

Page 9: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 99

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Safety Factor: SF

Total Displacement: TD

SF > 7

TD < 0,05 mm

SF > 8

TD < 0,04 mm

SF> 6

TD: 0,0007 mm

Page 10: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 1010

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Hallo Counter

Further check

Page 11: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 1111

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

3.– Main Support

Page 12: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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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

Page 13: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 1313

Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Longer in Z

Still laying on the tubular supporting beams

Due to interferences it will be mounted in place

Page 14: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

4.– Interferences

Page 15: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

SYMB

OLYMPUS

No clash detected

Just 0 contact on the tubular supporting beams

Page 16: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Top View

MWPC

ToF Frame

Beam Pipe

Coils Frame

Page 17: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Tight clearances, but feasible

Page 18: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Mounted in place

Optimized design to avoid overlapping parts

Page 19: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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Symmetric Möller/Bhabha Symmetric Möller/Bhabha

Cables to the ceiling?

Tubular support attached to ToF frame

Flasher box?

Flasher box

Page 20: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

26/04/201126/04/2011 David Rodríguez Piñeiro - Mainz University - OLYMPUS MeetingDavid Rodríguez Piñeiro - Mainz University - OLYMPUS Meeting 2020

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

Page 21: OLYMPUS Collaboration Meeting Luminosity Monitor Symmetric Möller/Bhabha Calorimeter David Rodríguez Piñeiro HIM / Mainz University OLYMPUS Collaboration

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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