TRT CommissioningTRT Commissioning

Vassilios I. VassilakopoulosVassilios I. Vassilakopoulos

Hampton UniversityHampton University

(for the ATLAS TRT Collaboration) (for the ATLAS TRT Collaboration)

The ATLAS TRT collaborationThe ATLAS TRT collaborationNorth-American collaborating institutes are listed in bold:

 CERN, CH-1211 Geneva 23, SwitzerlandLunds Universitet, Lund 22100, SwedenBogazici University, Istanbul, TurkeyHampton University, Hampton, VA 23668 USAHenryk Niewodniczanski Institute of Nuclear Physics, Cracow 31-342, PolandDuke University, Durham, NC 27708 USAUniversity of Copenhagen, Copenhagen 2100, DenmarkMoscow Engineering and Physics Institute, Moscow 115409, RussiaJoint Institute of Nuclear Research, Dubna 141980, RussiaIndiana University, Bloomington, IN 47405-7000 USAYale University, New Haven, CT 06520-8120 USAUniversity of Pennsylvania, Philadelphia, PA 19104-6396 USAPetersburg Nuclear Physics Institute, Gatchina, St. Petersburg 118300, RussiaInstitute of Nuclear Physics, Moscow State University, Moscow 119899, RussiaP. N. Lebedev Institute of Physics, Moscow 111924, RussiaFaculty of Physics and Nuclear Techniques of the Academy of Mining and Metallurgy, Cracow 30-059, Poland

OutlineOutline

TRT Detector Integration Status

SR1 Tests and Preparations

SR1 Combined Tests and Cosmic Runs

Final Commissioning in the ATLAS Cavern

Summary & Plans

ATLAS CommissioningATLAS Commissioning• Phase 1 commissioning

– Infrastructure, individual sub-systems• Phase 2

– Combined sub-systems– Evolve into an integrated experiment– Perform early combined runs (e.g. cosmic runs).

• Phase 3, 4– Global Cosmic runs, – One beam runs– First collisions

• Time scales– Phase 1 : 2004 - Early 2007– Phase 2 : Fall 2005 - Early 2007– Phase 3 : March 2007

Phases 1, 2, 3 and installation will overlap

ID Installation ScheduleID Installation Schedule

• At present: the focus is on the assembly of the detector parts, their services and their integration.

• Before the detector reaches the pit: combined system tests, integration of services, software and DAQ must be worked on.

• In the cavern: Stage 1 and 2 must/will be completed and fully debugged there to allow smooth connection of services and efficient commissioning.

• How to connect things and the sequence of tests, is based on experience from SR1. The detailed plan is under works…

Dates Inner Detector Parts

3 March 2006 SCT + TRT Barrel

25 May 2006 SCT + TRT End Cap-C

30 June 2006 SCT + TRT End Cap-A

5 October 2006 Pixels

Orientation in ATLASOrientation in ATLASSide A = + Z side ( = called “back” on TRT barrel)

Side C = - Z side ( = called “front” on TRT barrel)

Insertion from SR1 is from Side C (-Z side)

TRT PicturesTRT Pictures

TRT Barrel TRT End Cap C, stacks A & B

TRT Integration Status

TRT Barrel Status (1)TRT Barrel Status (1)Last module installed on Feb. 3 2005Last module installed on Feb. 3 2005

• All modules tested (HV stability, gain uniformity, wire tensions etc.)

• All protection boards installed.• RF shield was put on.• Protection panels modified and installed.• Heater pads installed• Most FE boards installed.Continue to install:• Electronics and module cooling tubes.• Manifolds by quadrants after electronics are installed

Cooling manifold, Active gas manifold (started installation in July),Purging gas manifold (in hand)

TRT Barrel Status (2)TRT Barrel Status (2)Continue to install:• Thermal sensors

Module/Cylinder sensors (installed), cooling plate & purging gas sensors. • Fuse boxes (production and evaluation in parallel).Continue to test:• Sector tests (at least one to be used for combined tests)

– 4 sectors mechanically done, electronics tests have been started. • Cooling, active gas, purging gas, HV, thermal sensors, electronics…

• Some DCS modifications in progress.• MTF migration: Commissioning, entering data.

Still on the critical path: Manifolds, electronics, fuse boxes.

One Stack already Fully Operational.One Stack already Fully Operational.

A Taste of Installation TestsA Taste of Installation TestsFE electronics installation tests consist of:

– Connectivity test

– Noise scan (low threshold)

– Repeat of internal pulse response for low and high threshold

The full set of installation tests are done

before and after installation.

• Final verification of electronics functionality/connectivity.• Detailed mapping of noise levels, dead channels, fine time

performance.

Electronics tests follow mechanics tests around the barrel.Starts after first quadrant of electronics and services are in

place.Last time that most of the boards will be read out or

powered before installation in the pit.

SECTORSECTORTESTSTESTS

TRT End Cap StatusTRT End Cap StatusTRT End Cap

A-stack:Electronics boards installed and tests in progress.

B-stack:Electronics boards installed.

Rotation of stacks:

Both stacks are rotated now and on tools in prep for services mounting (still separated)

Mechanical survey (verification of dimensions) continues

Rearrangement of stacking tables is done

TRT SR1 ScheduleTRT SR1 Schedule 2005 - SR1 – Standalone Tests & Preparations

July – Oct. 2005 System Tests & Preparation

3 Oct. – 20 Oct. Setup readout w/ new Back-End

20 Oct. – 15 Nov. Extensive TRT Barrel tests

15 Nov. – 15 Dec Extensive TRT End cap tests

Mid-Dec Start TRT Barrel & SCT combined tests

2006 - SR1 - ID Combined Tests & Preparations

4 Jan. – 6 Feb. Combined TRT/SCT tests – Cosmic Runs

1 March TRT/SCT Barrel moves into the pit

28 Mar. – 24 Apr. Combined ID End Cap C Tests

25 May TRT/SCT End Cap C moves into the pit

30 May –12 June Combined ID End Cap A Tests

30 June TRT/SCT End Cap A moves into the pit

SR1 Sub-Detector TestsSR1 Sub-Detector TestsThree different SR1 detector setups in 2005/06

TRT Barrel (early Oct – mid Nov)• Tests with new RODs and TTCs• New Bytestream converter needed.

TRT End Cap (mid Nov – mid Dec)• Self-triggering tests in parallel.• SCT Barrel insertion into TRT Barrel

TRT Barrel + SCT Barrel (Jan 06) combined test

Possible SR1 combined End Cap (EC) tests April – June 2006

TRT/ID Pit ScheduleTRT/ID Pit Schedule

Detector Parts Installation Dates Tests & Commissioning Dates

Barrel 3 March 2006 7 April – 23 May

End Cap C 25 May 2006 3 July – 28 July

End Cap A 30 June 2006 3 August – 30 August

After 1After 1stst of March work in SR1 is carried out of March work in SR1 is carried out in parallel with activities in the pit.in parallel with activities in the pit.

After the detector moves to the pit After the detector moves to the pit

very short period for tests and commissioning!very short period for tests and commissioning!

Standalone tests in SR1

Standalone Tests ObjectivesStandalone Tests ObjectivesHardwareHardware in place and operational.• Modules assembly, testing.• Attach services (cooling, gas lines, power lines (LV,HV), cabling, sensors etc.).• FE electronics, support boards and Panels.• Mapping, Timing, Alignment, Operational stability.DAQDAQ setting up and development.TRT monitoringmonitoring development for standalone and combined operation.Detector Viewer/EditorViewer/Editor development.Data Control System (DCSDCS).• User interface and validation for all parts (LV, HV, Temp….).• DCS-DAQ communication.• DCS-DB communication.• GGSS validation.• Integration with ID DCS.Database (DBDB) setting up and communication.Offline softwareOffline software … including simulation software for all Cosmic setups!

Must be ready to handle information from theMust be ready to handle information from thecomplete Barrel by March the 3complete Barrel by March the 3rd rd 2006 and for 2006 and for

the complete End-Cap by May the 20the complete End-Cap by May the 20th.th.

2 sectors - 6 modules equipped from both sides

System tests. Starting up new DAQ. Multi ROD crate DAQ Starting up new DAQ. Multi ROD crate DAQ

(6 RODs, 2 TTCs in (6 RODs, 2 TTCs in oneone crate) crate) Online monitoring (GNAM) development & testing Detector viewer/editor development & testing

• Temperature images of the detector• DB parameter visualization, editing tests.

Physics monitoring development. DAQ-DCS communication tests. Database communication tests.

Integration with SCT DAQ Cosmic run + self trigger possibility

TRT Barrel - Summer 2005TRT Barrel - Summer 2005

4 sectors - 12 modules equipped from both sides

System tests (grounding, shielding, loops, cable attenuation etc.) TRT final Back-End tests. Multi ROD crate DAQ (4 RODs, 2 TTCs in two crates) with a final Multi ROD crate DAQ (4 RODs, 2 TTCs in two crates) with a final

Back end.Back end. Monitoring adaptation for new Back -End Integration with SCT DAQ. Finalize monitor development for the Barrel. DCS:

Operation and debugging of final user interfaces Database communication Data/parameter visualization tool tests/tuning HV system for 1/32 operation/debugging Gas Gain Stabilization SystemGas Gain Stabilization System operation & debugging

Finalize detector viewer/editorFinalize detector viewer/editor for the Barrel. Cosmic run (timing, mapping, monitoring, self triggering, etc.) ID monitoring tests

TRT Barrel - Fall 2005TRT Barrel - Fall 2005

Similar tests but with 4 sectors.

Must finalize the tools/interfaces for

the barrel.

TRT active sectorsTRT active sectors

4 Active sectorsStack 7 + Stack 8Stack 23 + Stack 24 A stack (sector) is: 1 T1 + 1 T2 + 1 T3

module

Sectors to be cabled from both sides A and C

12288 channels are operational

View from outside towards Side A

Tests with new Back-End EC- monitoring development (new geometry). DCS:

Operation and debugging final user interfaces (1/32-2/32 of the EC)

DB communication Data/parameter visualization tool tests/tuning HV system for 1/32 operation/debugging GGSS operation debugging

Detector viewer/editor development for EC Temperature image of the EC DB parameter visualization/editor tests

System tests (grounding/shielding/loops/cable attenuation etc) Cosmic run (timing, mapping, monitoring, etc.)

TRT End Cap – Late Fall 2005TRT End Cap – Late Fall 2005

Similar tests with Barrel.

Slightly different issues to be addressed.

The no. of channels increases dramatically.

Combined tests in SR1

Towards ID Combined testsTowards ID Combined tests

InsertionSetup

SCT-TRTInsertion &Final Seal

TransferTo Test area& Cabling

EC Trolley

SCT readout checks

TRT readout checks

Combined Tests-Noise-X-talk- Operation & Stability- Cosmic Run(s)-Interference of Services, DAQ.

Prepare Transport

& Transfer

to pit

TRTBarrel

SCTBarrel

Nov. 15th Dec. 15th Jan. 5th Mar 1st

Barrel and End-CapBarrel and End-Cap Combined system tests (TRT and SCT).

• Validation of the grounding & shielding design

• Noise levels & Power distribution

• External pick-up sensitivities

• Explore potential emerging issues. ID monitoring development

Alignment checks

Final channel mapping with cosmic rays

Combined DCS operation tests

ID level commissioning and operation tool development.

Operation with final Database (DB) tools

Combined Test Objectives Combined Test Objectives

Cosmic Run(s) ObjectivesCosmic Run(s) Objectives The Ultimate combined testThe Ultimate combined test since could explore:

DAQ/Online software integration Online Monitoring integration Offline Software integration Physics performance

Final tuning of read out parameters.

Ability to reconstruct tracks, do alignments.

Start preparation & testing of the building of ATLAS events.Start preparation & testing of the building of ATLAS events.

Use external trigger(s) & information.(Self triggering could be used also for standalone tests.)

First Combined Test configurationFirst Combined Test configuration

SCT14x48 modules672 modulesCabled & Powered

TRT2 sectors on Side A+ 2 sectors on Side Ccabled

Tests:

•Full SCT-TRT interface along modules

•SCT-TRT interface along cable overlap

•Interface to Thermal Enclosure & heaters

•TRT between layers

•Cosmics technically OK but at end of the schedule …BARREL

November 2005-February 2006: Cosmic runs with the Barrel SCT and TRT.

Barrel Setup

`

Plans for Cosmic Run at SR1Plans for Cosmic Run at SR1

Scintillators

Scintillators

Iron or lead absorber to rejectlow momentum tracks

Active TRTSectors.

TRT Barrel:

2 (top) + 2 (bottom) TRT phi sectors.

SCT Barrel:

672 SCT modules.

Tilted by ~20o with respect to the vertical axis.

Scintillators Setup Scintillators Setup

Present Anticipated Setup2 Scintillator Arrays 150x60 cm2

Tilted by 20o tilted Positioned at the top and bottomwith no 3rd array in the center.

Cut-offCut-off >0.5 GeV>0.5 GeV >2 GeV>2 GeVFlux(Hz)Flux(Hz) 304.0304.0 212.8212.8

EfficiencyEfficiency 4.6%4.6% 3.9%3.9%Rate(Hz)Rate(Hz) 13.813.8 8.58.5

Simulated trigger ratesSimulated trigger rates

TRT:For 2 x1/32 sectors read out.

All SCT services installed but TRT End cap is supposed to have all

harnesses installed by that time as well.

No problem to test any area.

A B

Tests: February – March 2006Tests: February – March 2006

Might be delayed. Everything Might be delayed. Everything depends on SCT EC scheduledepends on SCT EC schedule..

Commissioning with the SCT ECCommissioning with the SCT EC

What should we provide?What should we provide?

• Full track reconstruction of cosmic events.

• Alignment corrections for the different running conditions (e.g. different cooling temperatures).

• Monitoring (at the EF, if available).

What do we need to do? (1)What do we need to do? (1)• Simulation

Basic simulation package exists: InDetCosmicSimExampleTRT barrel and SCT barrel for Jan 2006 setup

– Detector description of the SR1 layout

– Simulation in Geant4 with only TRT+SCT barrel + scintillator setups

– Tuning of simulation based on CTB data

– Hits simulated in full detector and kept only if track passed scintillators

– Digitization only of hits in read-out sectors & modules --> RDOs

• BS converters

– SCT fine with old BS converter,

– TRT will use new RODs, different format, needs new RDO<->BS converter (new InDetRawDataByteStreamCnv under development)

What do we need to do? (2)What do we need to do? (2)• Reconstruction package: InDetCosmicRecExample

– Create from SCT & TRT RDOs:– PrepRawData, Space Points – SCT clusters and TRT drift circles– Tracks (using straight line fitter of new Kalman fitter)Reconstruction output: CBNT ntuple, alignment ntuple, ESD,

Atlantis xml files.• Calibration

– Need for implementation of TRT calibration algorithms in Athena– Many iterations required. Results should be stored in the Conditions DB

• Monitoring• Alignment • Conditions DB (Oracle or MySQL)

– Cabling, masking of read-out modules.– ROD configuration (thresholds, voltages)– Bad/noisy channels– Calibrations (R-t relations)

Tasks for the 2006 commissioningTasks for the 2006 commissioning

Similar with the tasks (to be) done in 2005 in the SR1. Similar with the tasks (to be) done in 2005 in the SR1. Only the scale and importance will be augmented.Only the scale and importance will be augmented.

• Final read-out parameter tuning• Noise tests (standalone & combined)• Services (Gas partial, cooling, HV, LV, Safety Systems)• DCS tuning (standalone, combined)• DB issues• Monitoring tuning (standalone, ID)• Comics runs

– Mapping– Timing– Alignment

• Different calibrations. • Integration with ATLAS DAQ

Requirements for 2006 CommissioningRequirements for 2006 Commissioning

Completion of final connectivity tests.

Completion of functionality tests.

DCS fully operational, including interlocks.

Complete module readout available (Barrel, End Cap-C and End Cap-A).

Availability of a complete tested HV system.

Availability of Gas system and gas (Ar/CO2).

RCD RCD RCD RCDRCD RCDRCD RCD RCD RCD

Partition 1TRT EC A

Partition 4TRT EC A

Partition 2TRT Barrel A

Partition 3TRT Barrel C

Event Building

RCD during commissioning in the pit.

Parallel running with different partitions is required.

Correlation between both parts of the barrelis important and we need to build complete event.

ROD Crate DAQROD Crate DAQ

Cosmic Run Tests

in the ATLAS Cavern

Operation with cosmic raysOperation with cosmic rays

~ 5 million cosmic muons enter the

cavern in 15 minutes

Cosmics in 10 millisecondsCosmics in 10 milliseconds

Trigger rate for the BarrelTrigger rate for the Barrel

Simple PDG calculation Full GEANT simulation

‘ALEPH flux’

0.025 Hz = 90 / hour 0.037 Hz = 130 / hour

Require muons to deposit E > 1.5 GeV in each of 2 back-to-back TileCal towers 0.1 x 0.1 in (η,):

Access shafts increase this rate by ~ 20%.

It will be quite difficult to look for particles and make calibration at this conditions but still possible.

Initial TileCal Cosmic Ray Muon TriggerInitial TileCal Cosmic Ray Muon Trigger• Special setup to obtain trigger from Tile Cal is prepared.• Projective geometry for the trigger is used in the barrel area

z

R

It is a problem for the EC TRT . Use RPC trigger instead! CTP is required for this.

Even with the extended Barrel trigger from TileCal

the trigger for the TRT ECs is under question

Extended Barrel TriggerExtended Barrel Trigger

An overview of the different installation/testing scenarios and schedules at September meeting. Only then plans for commissioning and negotiations with other subsystems can be done.

Self trigger possibilitySelf trigger possibility is probably the only way to make cosmic run with the end-cap before CTP available. It also very much useful for the barrel because it could increase the trigger rate by factor of about 100.

Plans for the commissioning require clarification, realistic installation and coordination. Keep working…

ConclusionsConclusions

Things could dramatically change based on what number and when is available: Cabling - Patch Panels – LV – HV - Back-end – DAQ

TRT commissioning scenarios should be (re)-evaluated.TRT commissioning scenarios should be (re)-evaluated.

Gas (Xe mixture) for tests will be available by Feb. 2006Gas (Xe mixture) for tests will be available by Feb. 2006Gas system commissioning will start in Spring 2006 and can be largely done in parallel with Ar/CO2 flushing till November 2006.

Many developments in TRT DAQ software and monitoring could affect the barrel schedule (due to the earlier installation).

TRT Barrel has little service time for tests in the cavern. Cavern Tests include: Gas leak, Cooling (leak, function), Electronics, HV, DCS tests.

Gas leak tests require constant temperature!Electronics test take a while because readout parameter tuning.

SummarySummary

ENDEND