1

MUON UPGRADE: ME0

GMM 3-3-2014

All engineering drawings fromSasha Surkhov 22.2.2014PRELIMINARY !!

2

INTERFACE HE: ME0

h Extension up to 3.0 ; 3.5 ; 4 ?Calorimeters are working out various scenarios

ME0 CHAMBER LOCATION

3

R_in is 400mm R_out 1400mmZ_min 200mmZ_max 300mm

4

SHIELDING

Possible ME0 Stack Layout

Dz = 30 cm

2.5

bora

ted

poly

ethy

lene

plu

s 1.2

Pb

for n

shie

ldin

g

2.5

bora

ted

poly

ethy

lene

plu

s 1.2

Pb

for n

shie

ldin

g

f di

recti

on →

2 3 4 51 6

Guiding Rail& Services PocketFor package of 6

12 30 degreeChambers

Archana: 21.2.2014

Thicknesses cm:

2.5 Borated Poly1.2 Pb3.2 Single Chamber 13.2 Single Chamber 23.2 Single Chamber 33.2 Single Chamber 43.2 Single Chamber 53.2 Single Chamber 63.2 Sliding Rail1.2 Pb2.5 Borated Poly------------------------28.8cm

Mechanical Supports

Back flange

• 20-degrees/chamber in phi, 2-chamber units offset in phi degrees in successive layers– Assures 4 or more hits at all f ,

given the dead space between abutting chambers

• Absorbers removed from previous version

• Need simulations to evaluate geometry

• Weight of each 20 x 18degree 6 layer wedge 60x6 = 360 kg

• Weight of ME0 per endcap360x12= 4320 kg

R_in is 400mm R_out 1400mmZ_min 200mmZ_max 300mm

6

Muon TF

Readout Electronics - Current baseline

Opto-hybrid

Opto links

Backend electronics

VFAT3 ASIC

DAQDCSTTC

GEB

GBT

uTCA uTCADCSTTC

DAQ

Paul Aspell & Gilles Delentdecker

ME0 Power : Possible Granularity

• Each single detector will consist– 3072 readout channels – strips running one directional in φ– 24 VFAT3 chips – 1 optical-hybrid based on GBTs

• One ME0 super-module wedge will consist 6 times the single detector.– 18432 readout channels – strips running one directional in

φ– 144 VFAT3 chips– 6 optical-hybrids based on GBTs

LV Power Table and LV Cables PackageME0 – single detector ME0 complete super-

modulePer Endcap

24 VFAT3 FEBs – 24W 144 VFAT3 FEBs – 144W

1 Optical hybrid – 40W 6 Optical hybrids – 240W

Total LV power = 64W Total LV power = 384W 384x12 = 4368 W

• Modular Structure of ME0 permits easy maintenance and operation of all the electronics• The LV power granularity should follow the same concept. It will secure:• Flexibility of switch on/off part of the super-module • Secure the LV current monitoring on single detector level.• Dealing with “low” currents per cable.

The LV power cable package could be:• 6 cables for the VFATs 8A@3V• 6 cables for the optical hybrids 14A@3V

22A@3V

8A@3V14A@3V

Fibers – Possible Layout

• Per single detector we have 4 versatile optical links with 8 fibers to the uTCA GEB in total

• Per super-module we will have 24 versatile optical links with 192 fibers to the uTCA GEB

HV Powering• It will be based on Multichannel system able to measure the

HV currents through the GEM foils.

GEM tops

GEM bottom

Cable Package for the ME0 super-module - Wedge

12 LV cables – (6 x 14A@3V) + (6 x 8A@3V)

192 Fibers (24 versatile links to uTCA GEB)

6 HV Multi-core cables

CERNTest BeamRequests

R&DNeeded

CostEstimates

TP Preparation

Approximate ME0 Deadlines

March 20

First Draft April 20

II Draft May 20

III Version June 20

TP Ready August 20

Submit

CMS/LHCC

Stack LayoutWedge Engineering LayoutModule LayoutReadout Layout

Services LayoutIntegration Layout

Costing estimates

Front-End electronics DAQ

BackUP

• Documents available from integration Office

DETAILED INFO ON SHIELDING

Present Shielding for ME1/1: Need Simulations for ME0 shielding

GE0Neutron Shielding

20mm B-Poly + 10mm Pb

25mm B-Poly + 12mm Pb

50mm B-Poly + 50mm PbZ ~ 5250-5530*

GMM - Archana Sharma - 3/2/2014

GE1/

1

h=2.0