1Ken Wyllie, CERN LHCC, 12th March 2013

LHCb Upgrade Electronics

Status

On behalf of the LHCb collaboration

LHCC, 12th March 20132Ken Wyllie, CERN

Outline

Architecture review(s)

Overview of sub-detectors

Overview of common electronics

Conclusions

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Ken Wyllie, CERN 3

HLT

Current

HLT++

Upgrade

1MHzeventrate

40MHzeventrate

Readout Supervisor

L0 Hardware Trigger

Readout Supervisor

Low-level Trigger

50 Tb/s

Upgrade Architecture

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Architecture Review

TELL40

SOL40

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Review summary 1

Agenda (5/12/12) + Review Report:

https://indico.cern.ch/conferenceDisplay.py?confId=212204

Many thanks to our external reviewers:

• Alex Kluge (NA62, ALICE)• Philippe Farthouat (ATLAS)• Jorgen Christiansen (PH-ESE)

Presentations on: 1. Front-end & Back-end2. Timing & Fast Controls3. Expt. Control System4. DAQ-interface5. Infrastructure

LHCC, 12th March 20136Ken Wyllie, CERN

Positive feedback from reviewers: ‘NO SHOWSTOPPERS’-------------------------------------------------------------------------------Specific points on:

• Obsolescence

• Buffering on TELL40

• TELL40 firmware organisation

• Using Cu-links Tell40 <-> DAQ

• Tight schedule of ASICs-------------------------------------------------------------------------------Updated specifications note: LHCb-PUB-2011-011

Review summary 2

‘old’ systems under review

buffering being implemented

firmware coordination startedworkshop

in April

links under study with CERN & contractors

manpower + stronger collaboration

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Review of architecture implementation proposed by each sub-detector

• check feasibility

• check all architecture features included

• ideas from external reviewers

• prepare solid ideas for TDR

Specific mandate to 2 external reviewersDocumentation prepared in advance by sub-detectors

Sub-detector Architecture Reviews in 2013

Outer Tracker 6th March Upstream Tracker October

Calorimeter 12th June VeLo To be confirmed

RICH September SciFi/Inner Tracker To be confirmed

Muon October

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Sub-detectors: VeLo + Si trackers

VeLo:

Timepix3 submission imminent

Precursor to Velopix: design to start immediately

TOTTime of Arrival

Q(t)

clock

timeDiscr. out

thr

SALT chip (UT, IT, VeLo-strips)

Front-end + ADC (6-bits):

prototypes submitted

shaper5pF – 45pF

0ns 25 50 75

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Sub-detectors: Trackers

Outer Tracker:TDC in FPGA on prototype module

Also test of:DC-DC convertorsoptical link

SciFi:PACIFIC chip: design started.Specific issues with signal shape

ADC

LHCC, 12th March 201310Ken Wyllie, CERN

Sub-detectors: Particle-IDRICHPrototyping with existing or new chip (Maroc/Claro) connected to MaPMT

CalorimeterNew chip ICECAL:Tested with prototype digital module

MuonNew proposal to re-build ‘off-detector’ modules (obsolescence)

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Common Electronics Status 1

Common Electronics

LHCC, 12th March 201312Ken Wyllie, CERN

We rely HEAVILY on ‘White Paper’ projects (CERN-PH):

• GBT chipset 15,000 pieces• Versatile Link 9,000 pieces• DC-DC power convertors few 1000 pieces

Common Electronics Status 2

GBTX chip layout

Versatile link dual-transmitter

DC-DC convertor

LHCC, 12th March 201313Ken Wyllie, CERN

TELL40: Significant progress

AMC40 available soon for usersbuffering to be implemented

ATCA40: 1st prototype under test

ATCA infrastructurehardware investigationsoftware for control/monitoring

Firmware organisation Workshop at CERN 9/10 AprilALL sub-detectors will be present

formattingbuffering etc etc

Common Electronics Status 3

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Proposal to transmit detector data directly to surface (TELL40s)

Technically feasible?Tested 400m single fibre with VL

+ Tell40-AMC: OKHigh quality fibre: expensive…….Try lower grade + 12-way ribbon

Financially feasible?Discuss with companies:• Procurement• Installation• Testing

Optical fibres

LHCC, 12th March 201315Ken Wyllie, CERN

ConclusionElectronics architecture blessed by reviewersClear guidelines for sub-detector implementation

Already huge progress by sub-projects

2013 is a crucial year:

Manpower must increase

Detector requirements must be clear to allow good electronics design

- critical items are ASIC designs