6 October 2006 Borge S. Nielsen, Niels Bohr Institute

1st Installation and Commissioning Workshop

Forward Multiplicity Detector(FMD)

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Forward Multiplicity Detector (FMD)

FMD 1 FMD 3FMD 2

Outer ring

Inner ring

ITS

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Detector elements

Final FMD3 cone withbeam pipe support

Complete module(“outer” type)

Final “Inner” Digitizer

Cone assembly test

Muon absorber cabling

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

System tests already doneMechanical assemblywith models at CERN

Full read-out tests with Digitizer+RCU+DATE

Beam tests with >5000 active channelsand 2 digitizer cards +1 RCU+DATE

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Pre-commissioning• Pre-commissioning plans prior to installation

@NBI: - assemble complete detectors (FMD3 + FMD2, then FMD1)

- complete test with RCU, DDL, DATE, TTC/LTU, cooling

(but not final CAEN LV and HV)

- basic DCS panels, tested on simulated CAEN and real RCU/DCS card

@CERN (Jan-Feb 2007):

- retest as above, but with ‘final’ CAEN power supplies

• Status of pre-commissioning (@NBI)- FMD3 mechanics ~ready, FMD2 starting production

- all detector modules in house

- TTC/LTU being set up

- cooling plates in production

- DCS work starting

- complete read-out working

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Electronics & Racks• Locations of racks in the cavern + drawings of rack content including rack

patch-panels and possible communication lines between racks and entry point of cables (top, bottom ?)

- Rack O13 contains one EASY 3000 crate with 48 V power supply etc

one patch panel to distribute the LV cables from 10 digitizers and 3 RCUs to 4 low voltage modules

- Rack X06 contains one SY1527 crate

one patch panel to distribute the HV cables from 70 modules

and 6 high voltage modules

• Schedule for arrival of electronics and individual rack components at CERN.- Power supply crates hopefully early 2007

- Power supply modules before August 2007 – delivery schedule unknown

- Patch panels to be mounted together with cable connectors

• Electronics commissioning

- Power supplies to be installed and commissioned together with FMD3

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Detector Arrival @ CERN

Installation dates: FMD3 16-20 February 2007FMD2 07 March 2007FMD1 03-05 July 2007

• When will the detector arrive at CERN ?- before mid January 2007 (FMD3 and FMD2, FMD1 later)

• What are the dimensions of the ‘transport cradle’ that must be brought to the place of installation ? How will it be brought there?- 2 times 1x1x1 m3 by car

• How many people will participate in the installation ? - 6-8 people (physicists and technicians)

• How many days before installation will the team arrive ?- early-mid January for lab. test: 3-4 people- for installation: above + 3-4 people

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Cables & Patch panels• Status of cable, fibre and connector ordering.

- C side cables on absorber done, remaining defined but cables not pulled. Fibres not pulled.

- A side ~defined, but missing final cable lengths and final patch panel designs.

• Plans for cabling, connector and cable testing activity by subgroup.- NBI: - cables on absorber and service chariot - all cable connectors

- full cable testing- CERN: - pull long cables and all fibres

• Needed patch panels and status of patch panels.- Still to be done: panels on A side (PP2, PP1, PP0)

panels in racks (LV and HV distributions)

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Installation (1)• Minimum status of services at start of installation.

- all cables and fibres ready and tested- LTU/TTC running- DAQ running- CAEN HV and EASY LV crates and ‘some’ modules delivered- preferably cooling water from TPC heat screen system

• Installation tooling provided by the subdetector group.- support for cones during assembly

• Other Infrastructure needed.- full ITS installation infrastructure

• Installation scenario – day by day.- Before installation date: install and cable RCU modules - FMD3: 3 days mechanical installation, then complete test- FMD2: 1 day mechanical installation

1 day (12/03/2007) set aside for complete test after the cable hook-up

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Installation (2)• Tests and verifications during installation for cables, fibers

and cooling lines.

- cables etc should be tested before installation

- FMD3 should be verified through to the racks and counting rooms (with DCS and DAQ)

- FMD2 cannot be cabled until TPC is in place

– ideally detector should be tested with the commissioning electronics;

Not clear what is possible with temporary cabling, power etc.

• Alignment requirements- assured at required precision by ITS installation scenario

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Commissioning – summary (1)

• Test all detector modules at NBI. – Results stored in systematic fashion. Make list of repairs, send modules to CERN.

• Pre-assembly at NBI– Cables– Shielding (HF and light)– Cooling– Mechanical fit. Detectors, Honeycomb, Digitizer, beam tube support.– Noise tests– RO system w. 2 branches– Calibration pulse test– DCS control software– Monitor software, test and calibration scripts.– Check safety procedures (leakage current, auto shut off at beam injections, etc…)

• Final e-beam test at Aarhus – data taken 4-5 November– Test inner and outer digitizers with. inner and outer detectors.– S/N systematics– Rate dependence– System stability

• Limitations at NBI– Real LV and HV not available

• Final assembly at NBI - December

At NBI:

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Commissioning – summary (2)• Detector operation at CERN in Lab. – conditions similar to NBI lab.

– (Re-) Assemble detector system after transport– Connect detectors to LV, HV, and self-generated trigger– Run with stand-alone DAQ – Operate system in lab. Measure noise, stability and rate

• Detector operation at CERN in Lab. – conditions similar to ALICE.– Connect detectors to ‘real’ LV, HV, and trigger – Establish DCS control of hardware– Run with ‘real’ external trigger (LTU/TTC) and real ALICE DAQ– Operate system in lab. Measure noise, stability and rate

• Calibration and Control procedures – Exercise scripts to calibrate (pedestals, gain) and operate detector (start/stop/reset/load) – Exercise first monitor programs– Check stability and rate performance– Check safety procedures (leakage current, auto shut off at beam injections, etc…)

• Preparation in ALICE (in pit) prior to installation– Verify all cables/connectors (long cables and local (PP-to detector) cables)– Availability of trigger signal – Availability of real HV, LV - LV situation problematic due to CAEN delivery schedule– Availability of DCS control – Availability of DAQ

• Installation (3 days for FMD3, 1 day for FMD 2, 3 Days for FMD 1)- Run all scripts repeatedly and measure noise performance for entire system in situ

(Requires HV,LV, Trigger and DAQ, partly DCS)

At CERN:

6 October 2006 Borge S. Nielsen, Niels Bohr Institute

Commissioning – summary (3)

• Detector operation in ALICE.– Connect detectors to ‘real’ LV, HV, and trigger – Establish DCS control of final hardware– Run with real external trigger (TTC) and real ALICE DAQ– Operate system in ALICE. Measure noise and stability.

• Calibration and Control procedures – Exercise scripts to calibrate (pedestals, gain) and operate detector (start/stop/reset/load) – Exercise first monitor programs– Check stability and rate performance

At CERN post installation: