1. Lutz Feld (RWTH Aachen) 5. 12. 2012
Alliance Project Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC
Lutz Feld (RWTH Aachen)

2. CMS Tracker Inner Barrel
Lutz Feld | RWTH Aachen

3. ATLAS End-cap disk
Lutz Feld | RWTH Aachen

4. CMS Tracker End-cap
Lutz Feld | RWTH Aachen

5. ATLAS and CMS trackers operate almost perfectly:
99%/98% of 6.3M/9.3M strips working
This was a long way, since the mid 1990s:
R&D
design choices
lab-tests, beam-tests, system-test,…
careful assembly
careful commissioning and operation
German groups:
ATLAS: Freiburg, MPI Munich
CMS: Aachen, DESY, Hamburg, Karlsruhe
Lutz Feld | RWTH Aachen

6. Key developments:
large area silicon strip sensors able to operate up to 500V bias voltage
radiation-tolerant read-out ASCIs (ABCD/APV)
optical read-out and communications
low-mass support structures and cooling
logistics!
Lutz Feld | RWTH Aachen

7. fancy module designs
Lutz Feld | RWTH Aachen

8. module mass production
4k / 15k modules assembled
Lutz Feld | RWTH Aachen

9. integration of large sub-systems
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10. tracker insertion
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11.
Lutz Feld | RWTH Aachen

12. -
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13. H  Z Z -
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14. ATLAS und CMS Spurdetektoren arbeiten hervorragend
Lutz Feld | RWTH Aachen

15. Why upgrade current ATLAS and CMS trackers are specified to operate
up to 1x1034cm-2s-1 instantaneous luminosity
up to 500 fb-1 integrated luminosity
HL-LHC will deliver from 2022 on
5x1034cm-2s-1
3000 fb-1
new tracking systems are needed
higher hit densities (5-10 times higher)
higher radiation damage (5-10 times higher)
contribution to first level trigger desirable
time to design and build the current trackers 1996 – 2006 = 10 years
= now!
Lutz Feld | RWTH Aachen

16. Proposal:
Collaboration of German ATLAS and CMS Tracker groups on
Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC
during the R&D phase
key areas of mutual interest
sharing experience
alliance funding is very valuable and visible since BMBF funding for tracker upgrades is still rather limited
Lutz Feld | RWTH Aachen

17. Aachen (CMS) Berlin (ATLAS)
Prof. Dr. Lutz Feld, Dr. Katja Klein, Marius Preuten, Jan Sammet, Waclaw Karpinski, Michael Wlochal
Berlin (ATLAS)
Prof. Dr. Heiko Lacker, Dr. Malik Aliev, Laura Rehnisch, Maik Daniels
DESY (ATLAS + CMS) Dr. Ingo Bloch, Dr. Günter Eckerlin, Dr. Doris Eckstein, Dr. Ingrid-Maria Gregor, Dr. Andreas Mussgiller, Dr. Marcel Stanitzki, Thomas Eichhorn
Freiburg (ATLAS)
Prof. Dr. Karl Jakobs, Dr. Ulrich Parzefall, Dr. Thomas Barber, Dr. Susanne Kühn, Christopher A Betancourt, Marc Hauser, Ines Messmer, Thomas Dilger, Dr. Kambiz Mahboubi
Hamburg (CMS) Joachim Erfle, Prof. Erika Garutti, Thomas Poehlsen, Prof. Peter Schleper, Dr. Sergej Schuwalow, Dr. Georg Steinbrück
Karlsruhe (CMS)
Prof. Dr. Thomas Müller, Prof. Dr. Wim de Boer, Prof. Dr. Ulrich Husemann, Dr. Alexander Dierlamm, Dr. Frank Hartmann, Christian Barth, Felix Bögelspacher, Robert Eber, Moritz Guthoff, Andreas Nürnberg
Lutz Feld | RWTH Aachen

18. Exchange of experience
WP1
Radiation Hardness of Silicon Sensors
WP2
Low Mass System Design
WP3
Automated Precision Assembly Procedures
WP4
Irradiations
WP5
Aachen
Berlin
DESY
Freiburg
Hamburg
Karlsruhe
experience exchange X
rad-hard sensors
low mass design
assembly procedures
irradiations
Lutz Feld | RWTH Aachen

19. Exchange of experience
WP1
Convenors: Ulrich Parzefall (FR), Katja Klein (AC)
exchange experience gained during the design, construction and operation of the current ATLAS and CMS tracking systems
summarize different approaches and analyze weak and strong points
main topic of initial workshop
Deliverable: report based on presentations at workshop
Lutz Feld | RWTH Aachen

20. Radiation Hardness of Silicon Sensors
WP2
Convenors: Alexandra Junkes (HH)), Alexander Dierlamm (KA)
thorough evaluation and combination of the silicon sensor radiation damage actually measured in the ATLAS and CMS trackers realistic extrapolations to the operating conditions at the high luminosity LHC
joint analysis of radiation effects, in particular on novel design options, based on results obtained within the experiments and by additional lab measurements in areas of particular interest to both experiments
implement and validate radiation damage effects in device simulations
special aspects: charge amplification in silicon strip sensors, novel sensor designs
Deliverable: documentation of observations, improved device simulation
Lutz Feld | RWTH Aachen

21. Low Mass System Design WP3 investigations on novel low mass materials
Convenors: Andreas Mussgiller (DESY), Ingrid Gregor (DESY)
investigations on
novel low mass materials
novel production techniques
new detector module and system design concepts
powering
communications
cooling
electronic hybrids
measurements of thermal, mechanical and electrical properties, comparison to simulations
conceptual design of a detector module, its support and services to assess applicability of new materials, production techniques and design concepts
Deliverable: documentation of results including a data base of promising materials
Lutz Feld | RWTH Aachen

22. Automated Precision Assembly Procedures
WP4
Convenors: Susanne Kühn (FR), Lutz Feld (AC)
develop procedure to assemble
several 10,000 back-to-back modules
with µm front-to-back alignment accuracy
based on
ATLAS experience of (manual) assembly to 5 µm accuracy
CMS experience of (automated) assembly of 15,000 modules
including QA procedures
Deliverable: documentation of the developed procedures and possibly results from actual assembly exercises
Lutz Feld | RWTH Aachen

23. Irradiations WP5 irradiation tests of silicon sensors
Convenors: Alexander Dierlamm (KA), Erika Garutti (HH)
irradiation tests of
silicon sensors
structural materials
glues …
in a well controlled way at the Karlsruhe cyclotron and other sources around Europe
Deliverable: irradiations for the other work packages
Lutz Feld | RWTH Aachen

24. Resources and Time line
Alliance Funding: 240 k€ personnel + 20 k€ irradiation costs
 4 post-docs co-financed by the alliance and the host institutes (50/50)
embedded into broader program of work of the contributing institutes
Time line:
Duration: 24 months ( )
Three work-shops: initial + mid-term + final
First workshop: at Mainz jointly with Alliance Detector Workshop
Lessons learned from design, construction and operation of current LHC tracking detectors
First lessons learned at LHC on radiation damage
Planning for work packages 2-5
meetings are open to anyone interested
Indico Project Pages:
(under construction)
Lutz Feld | RWTH Aachen

25. Summary
Alliance Project Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC is ready to start
Lutz Feld | RWTH Aachen