E.Guschin (INR)

PRS/SPD static envelop, assembly and installation

• Detector layout

• Static envelop along the beam

• Detector structure

• Module box and fibre routing

• Supermodule design and assembly

• LED monitoring cabling structure

• SM installation

E.Guschin (INR)

Detector layout

• Dimension

H x W (m2) 7.7x7.65

• Active area

H x W (m2) 6.2 x 7.65

Along beam 18 cm

• Weight

Lead 10 t

414 modules 1.6 t

16 supermodules 16 x 250 kg

E.Guschin (INR)

Static envelop along beam

After the lead thickness has been changed to 2.5X0, the gap between lead and detector also has been decreased.

The other dimensions are not changed since EDR.

E.Guschin (INR)

PRS/SPD detector structure

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Number of modules and tiles

Tiles number: 14144

PRS+SPD Spares

outer 2688 x 2 80 x 2

middle 1792 x 2 320 x 2

inner 1472 x 2 720 x 2

total 11904 2240

Modules number: 444

PRS+SPD Spares

outer 168 x 2 5 x 2

middle 28 x 2 5 x 2

inner 10 x 2 5 x 2

special ½ x 2

total 412 + 2x1/2

30

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Module boxes and WLS fibers routing

Fibers routing is essentially the same for inner, middle and outer modules:

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The clear fibres layout

The fibres layout will match the electronics mapping. The orientation of optical connectors is “up” and “down” to avoid cable loops.

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LED monitoring: cables

LED trigger: 96 splitters for 752 drivers

Control voltage

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Supermodule frame design

Frame of supermodule It consists of two Al C-beams and one I-beam connected by perforated Al plates. The tooling for supermodule assembly will be designed and constructed in INR. Assembly of supermodule including installation of modules, clear fibre bundles and cabling will be done in CERN

E.Guschin (INR)

Assembly of SM

• The assembly of supermodule will start with frame assembly. Then the frame will be fixed on the supporting cradle to allow the further assembly with modules in horizontal position.

• In the beginning, the optical and monitoring cables will be installed from one side of the frame, then the cradle is rotated and the module boxes will be installed on another side. The supporting tools for the assembly and storage will be designed and constructed in INR.

The supporting cradle.

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Assembly of SM

Electronics will be installed on the supporting plates attached to the ends of SM frame

structure.

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SM installation

• General scheme is as it was in TP except the installation will be done without electronics. • SM will be attached to neighbors, geometrical alignment is necessary at 4 points (2 – top; 2-bottom)