Austrian Physical Society
Physics in Austria
  
  
  
Search on the OePG website:
   
   
  Set Page Contrast  
   
 

Research Group "HEPHY - Forschungsprojekt CMS Trigger"
(Univ.Doz. Dipl.-Ing. Dr.techn. Claudia-Elisabeth Wulz)

Head of the research group:
Last name:Wulz
First name(s):Claudia-Elisabeth
Title:Univ.Doz. Dipl.-Ing. Dr.techn.
Position:Projektleiterin
Institution:
Institution:Austrian Academy of Sciences
Organizational unit:Institut für Hochenergiephysik (HEPHY)
Street address:Nikolsdorfer Gasse 18
Postal code:1050
City:Wien
Mail:Claudia.Wulz(at)cern.ch
Homepage:http://www.hephy.at/
Assignments to Research Areas:
Research area(s):
  • High Energy Physics
Assignments to Fields of Work According to the Austrian System of Science Areas:
Field(s) of work:
  • Experimental physics (103008)
  • High energy physics (103012)
  • Particle physics (103034)
Data Acquisition:
Date of the data acquisition:31.05.2012
Data acquisition period:from: 2007   up to including: 2011
Research Group at the Time of the Data Acquisition:
Scientific group members:
11 Persons
Janos Erö
Josef Strauss
Vasile-Mihai Ghete
Natascha Hörmann
Josef Hammer
Manfred Jeitler
Ivan Mikulec
Babak Rahbaran
Herbert Rohringer
Dinyar Rabady
Claudia-Elisabeth Wulz
Full-time equivalents:7.8
Percentage project-funded:10
Scientific Output in the Above Data Acquisition Period:
H-index of the group head:50
Number of publications:108
Five most important publications:
  1. CMS Collaboration (S Chatrchyan et al.), "Performance of the CMS Level-1 Trigger during commissioning with cosmic ray muons and LHC beams", JINST 5 (2010) T03002.
  2. CMS Collaboration (S Chatrchyan et al.), "The CMS Experiment at the CERN LHC",
    JINST 3 (2008) S08004. (C.-E. Wulz, Autor Kap. 8 "Trigger")
  3. J. Erö et al. (13 Autoren), "The CMS Drift Tube Trigger Track Finder", JINST 3 (2008) P08006.
  4. I. Magrans de Abril, C.-E. Wulz, J. Varela, "Conceptual Design of the CMS Trigger Supervisor",
    IEEE Trans.Nucl.Sci. Vol 53 Nr. 2 (2006) 474-483.
  5. L. Boldizsar et al. (12 Autoren), "The efficiency of the CMS level-1 trigger for supersymmetric events",
    Eur. Phys. J. C 40 (2005) s2.1-s2.13.
Awards:
  • Wulz, Claudia-Elisabeth, FEMtech Expert of the month, Jan 2010
  • Taurok, Anton, CMS Award for outstanding contribution to Global Trigger electronics, 2010
  • Erö, Janos, CMS Award for outstanding contribution to Drift Tube Muon Track Finder electronics, 2010
  • Hartl, Christian, CMS Achievement Award for critical contributions to the Global Trigger, 2008
  • Magrans de Abril, Ildefons, CMS Thesis Award, 2008
Five most important talks:
  1. C.-E. Wulz, "First results from the LHC", XVI CSIC/IFT XMAS Workshop, Madrid, Spain, 2010.
  2. H. Rohringer, "The CMS Level-1 Trigger: Functionality and Performance",
    35th International Conference on High Energy Physics, Paris, France, 2010.
  3. I. Mikulec, "CMS Data from First Collisions", LHC Meeting, CERN, Geneva, Switzerland, 2009.
  4. C.-E. Wulz, "Status and Commissioning of the CMS Experiment",
    Europhysics Conference on High Energy Physics, Manchester, UK, 2007.
  5. V. Ghete, "The CMS L1 Trigger Emulation Software",
    17th International Conference on Computing in High Energy and Nuclear Physics, Prag, Czech Republic, 2007.
Projects and Funding Granted in the Above Data Acquisition Period:
Competitive projects:
  • Die Beiträge des HEPHY zum Bau und zum Betrieb des CMS-Experiments werden direkt vom Bundesministerium für Wissenschaft und Forschung gefördert.
  • WTZ Acciones Integradas 21/2004:
    "Development of the Muon Trigger System at the
    CMS Experiment"
Commissioned projects:
  • Eta Track Finder Hardware für Autonome Universität Madrid
Funded awards:
  • 3 CERN doctoral students
Research Topics:
Current research topics:
  • Muon Trigger:
    Overall responsibility for the Drift Tube Track Finder (DTTF) in the central region of CMS. The DTTF assigns transverse momentum, location and quality information to every muon candidate at a rate of 40 MHz and transfers the four highest-rank ones to the Global Muon Trigger (GMT), which has exclusively been designed and constructed by HEPHY. For the Muon Trigger components described here, HEPHY has designed and built almost the entire electronics consisting of 140 boards of twelve different types.
  • Global Trigger and Trigger Control System:
    HEPHY has exclusively designed and constructed the Global Trigger and the central part of the Trigger Control System. These two systems are essential for data taking. The Global Trigger performs a quick on-line analysis of each collision and decides whether to reject or to accept it for further detailed evaluation by the High-Level Trigger. The decision is based on results from algorithms and on the readiness of the subdetectors and the data acquisition, which is determined by the Trigger Control System.
  • Trigger Supervisor and Software:
    The Trigger Supervisor controls, coordinates and monitors all trigger subsystems. It is a software framework consisting of almost 50000 lines of code, which was proposed and largely developed by HEPHY and which is in daily use to run the experiment. HEPHY is also co-leading the level-1 trigger offline software development.
  • Trigger Commissioning, Operations & Maintenance:
    Development and testing of trigger menus, development of shift and monitoring tools, synchronization of subsystems, shift participation as trigger shifters, trigger field managers and experts on call, maintenance of about 200 electronic modules.
Future topics (next 5 years):
  • Trigger Hardware and Performance Upgrade:
    Upgrading the regional level-1 Muon Trigger, the Global Muon Trigger, the Trigger Control System and the Global Trigger in view of higher LHC luminosity and new technologies. Incorporation of calorimeter information in the Global Muon Trigger.
  • Trigger Supervisor Upgrade:
    Implementation of the Interconnection Test Framework, which will allow systematic, automated self-testing of trigger subsystems and their interconnections.
  • Trigger Commissioning, Operations & Maintenance:
    Development and testing of trigger menus, development of shift and monitoring tools, synchronization of subsystems, shift participation as trigger shifters, trigger field managers and experts on call, maintenance.
  • Trigger Coordination:
    CMS-wide trigger technical coordination, project management and level-1 offline software coordination.
Teaching and Research Mobility in the Above Data Acquisition Period:
Doctor's theses:
1 doctor's thesis
  1. I. Magrans de Abril: "The CMS Trigger Supervisor: Control and Hardware Monitoring System of the CMS Level-1 Trigger at CERN", Autonome Universität Barcelona (2008)
Diploma and master theses:
6 theses
  1. Ph. Wagner: "Interfacing the Level-1 Global Trigger of the CMS Experiment at LHC with Physics", Universität Wien (2010)
  2. Th. Themel: "An Integrated Testing Facility for the Global Trigger of the CMS Experiment at CERN", Technische Universität Wien (2010)
  3. F. Teischinger: "Monitoring Infrastructure Development for the CMS Drift Tube Track Finder at the LHC", Technische Universität Wien (2009)
  4. A. Winkler: "Suitability of the CMS Trigger Supervisor Control Panel Infrastructure: The Global Trigger Case", Technische Universität Wien (2008)
  5. T. Nöbauer: "System Integration of the Global Muon Trigger for the CMS Experiment at CERN", Technische Universität Wien (2007)
  6. Ph. Glaser: "System Integration of the Global Trigger for the CMS Experiment at CERN", Technische Universität Wien (2007)
International networking:
  • Direkte Kollaboration mit 9 Institutionen in Europa und USA
to the top of the page
© Austrian Physical Society (ZVR: 459787108) 1997 - 2017