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Featured researches published by B. Arnold.


Journal of Instrumentation | 2016

The upgrade of the CMS Global Trigger

J. Wittmann; B. Arnold; H. Bergauer; M. Jeitler; T. Matsushita; D. Rabady; B. Rahbaran; Claudia-Elisabeth Wulz

The Global Trigger is the final step of the CMS Level-1 Trigger. Previously implemented in VME, it has been redesigned and completely rebuilt in MicroTCA technology, using the Virtex-7 FPGA chip family. It will allow to implement trigger algorithms close to the final physics selection. The new system is presented, together with performance tests undertaken in parallel operation with the legacy system during the initial months of Run II of the LHC at a beam energy of 13 TeV.


Journal of Instrumentation | 2017

Design and performance of the phase I upgrade of the CMS Global Trigger

J. Wittmann; G. Aradi; B. Arnold; H. Bergauer; M. Jeitler; T. Matsushita; Claudia-Elisabeth Wulz

The Global Trigger is the final decision stage of the Level-1 Trigger of the CMS Experiment at the LHC. Previously implemented in VME, it has been redesigned and completely rebuilt in MicroTCA technology, using the Virtex-7 FPGA chip family. This allows implementing trigger algorithms close to the final analysis selection, combining different physical objects. The flexible and compact new system is presented, together with performance tests at a proton-proton centre-of-mass energy of 13 TeV. Firmware and software developments for the operation and validation of the Global Trigger will also be discussed.


Journal of Instrumentation | 2011

MicroTCA-based Global Trigger Upgrade project for the CMS experiment at LHC

Babak Rahbaran; B. Arnold; H. Bergauer; M. Eichberger; D. Rabady

The electronics of the first Level Global Trigger (GT) of CMS is the last stage of the Level-1 trigger system [1]. At LHC up to 40 million collisions of proton bunches occur every second, resulting in about 800 million proton collisions. The CMS Level-1 Global Trigger [1], a custom designed electronics system based on FPGA technology and the VMEbus system, performs a quick on-line analysis of each collision every 25 ns and decides whether to reject or to accept it for further analysis. The CMS trigger group of the Institute of High Energy Physics in Vienna (HEPHY) is involved in the Level-1 trigger of the CMS experiment at CERN. As part of the Trigger Upgrade, the Level-1 Global Trigger will be redesigned and implemented in MicroTCA based technology, which allows engineers to detect all possible faults on plug-in boards, in the power supply and in the cooling system. The upgraded Global Trigger will be designed to have the same basic categories of functions as the present GT, but will have more algorithms and more possibilities for combining trigger candidates. Additionally, reconfigurability and testability will be supported based on the next system generation.


Journal of Instrumentation | 2011

The central trigger control system of the CMS experiment at CERN

Anton Taurok; B. Arnold; H. Bergauer; M. Eichberger; J. Erö; Ch Hartl; M. Jeitler; K. Kastner; I. Mikulec; B. Neuherz; M. Padrta; H Sakulin; J. Strauss; Claudia-Elisabeth Wulz; J Varela; W. H. Smith


Journal of Instrumentation | 2015

Global Trigger Upgrade firmware architecture for the level-1 Trigger of the CMS experiment

Babak Rahbaran; B. Arnold; H. Bergauer; J. Wittmann; T. Matsushita


Archive | 2010

Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons / CMS Collabora

S. Chatrchyan; V. Khachatryan; Albert M Sirunyan; Wolfgang Adam; B. Arnold; H. Bergauer; T. Bergauer; Marko Dragicevic; Krzysztof T. Pozniak; Ryszard S. Romaniuk; W. Zabolotny


Archive | 2010

Commissioning of the CMS experiment and the cosmic run at four tesla / CMS Collaboration (from ISE)

S. Chatrchyan; V. Khachatryan; Albert M Sirunyan; Wolfgang Adam; B. Arnold; H. Bergauer; T. Bergauer; Marko Dragicevic; Krzysztof T. Pozniak; Ryszard S. Romaniuk; W. Zabolotny

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H. Bergauer

Austrian Academy of Sciences

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Claudia-Elisabeth Wulz

Vienna University of Technology

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Babak Rahbaran

Vienna University of Technology

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M. Eichberger

Austrian Academy of Sciences

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M. Jeitler

Vienna University of Technology

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Marko Dragicevic

Austrian Academy of Sciences

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T. Bergauer

Austrian Academy of Sciences

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T. Matsushita

Austrian Academy of Sciences

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Wolfgang Adam

Austrian Academy of Sciences

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