G. Volpi, M. Dell'Orso, F. Crescioli, G. Punzi, P. Giannetti, J. Vivarelli, E. Brubaker, M. Dunford, Young-Kee Kim, M. Shochet, G. Usai, K. Yorita, C. Ciobanu, T. Liss
{"title":"Performance of the Proposed Fast Track Processor for Rare Decays at the ATLAS Experiment","authors":"G. Volpi, M. Dell'Orso, F. Crescioli, G. Punzi, P. Giannetti, J. Vivarelli, E. Brubaker, M. Dunford, Young-Kee Kim, M. Shochet, G. Usai, K. Yorita, C. Ciobanu, T. Liss","doi":"10.1109/RTC.2007.4382820","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382820","url":null,"abstract":"The fast track processor (FTK) has been proposed for high-quality track finding at very high rates (level-1 output rates) for the LHC experiments. Fast, efficient and precise pattern recognition has been studied using a silicon 6-layer sub-detector, including a subset of the pixel and SCT layers. We tested the FTK algorithms using the ATLAS full simulation. We compare the FTK reconstruction quality with the tracking capability of the offline iPatRec algorithm. We show that similar resolutions and efficiencies are reached by FTK at a speed higher than iPatRec by orders of magnitude. With FTK full events are reconstructed at the level-1 output rate. Bs 0rarrmu+mu- events are fully simulated together with background samples. We show that a low level-2 rate is allowed by FTK, even using a single 6 GeV level-1 muon selection trigger. FTK provides the full-resolution track list ready for the level-2 Bs 0 identification. All selection cuts performed by the Event Filter can be easily anticipated at level-2. We present the Bs 0rarrmu+mu- efficiency gain and related level-2 rates.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128232008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Prosser, G. Cardoso, J. Chramowicz, J. Marriner, R. Rivera, M. Turqueti
{"title":"Data Acquisition, Storage and Control Architecture for the SuperNova Acceleration Probe","authors":"A. Prosser, G. Cardoso, J. Chramowicz, J. Marriner, R. Rivera, M. Turqueti","doi":"10.1109/RTC.2007.4382759","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382759","url":null,"abstract":"The SuperNova Acceleration Probe (SNAP) instrument is being designed to collect image and spectroscopic data for the study of dark energy in the universe. In this paper, we describe a distributed architecture for the data acquisition system which interfaces to visible light and infrared imaging detectors. The architecture includes the use of NAND flash memory for the storage of exposures in a file system. Also described is an FPGA-based lossless data compression algorithm with a configurable pre-scaler based on a novel square root data compression method to improve compression performance. The required interactions of the distributed elements with an instrument control unit will be described as well.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129265308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Jung, A. Baird, R. Baldinger, S. Baumgartner, D. Beneckenstein, N. Berger, M.-O. Boenig, L. Caminada, D. Dodt, E. Elsen, M. Kolander, S. Kolya, K. Kriiger, K. Lohwasser, D. Meer, D. Mercer, V. Michels, D. Muller, J. Muller, J. Naumann, P. Newman, D. Sankey, M. Sauter, A. Schoning, H. Schultz-Coulon, M. Wessels, C. Wissing, W. Yan
{"title":"First Results from the Third Level of the H1 Fast Track Trigger","authors":"A. Jung, A. Baird, R. Baldinger, S. Baumgartner, D. Beneckenstein, N. Berger, M.-O. Boenig, L. Caminada, D. Dodt, E. Elsen, M. Kolander, S. Kolya, K. Kriiger, K. Lohwasser, D. Meer, D. Mercer, V. Michels, D. Muller, J. Muller, J. Naumann, P. Newman, D. Sankey, M. Sauter, A. Schoning, H. Schultz-Coulon, M. Wessels, C. Wissing, W. Yan","doi":"10.1109/RTC.2007.4382858","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382858","url":null,"abstract":"To make the best possible use of the higher luminosity provided by the upgraded HERA collider, the H1 collaboration has built the Fast Track Trigger (FTT). It is integrated in the first three levels (L1-L3) of the H1 trigger scheme and provides enhanced selectivity for events with charged particles. The FTT allows the reconstruction of tracks in the central drift chambers down to 100 MeV. Within the 2.3 mus latency of the first trigger level coarse two dimensional track information in the plane transverse to the beam is provided. At the second trigger level (20 mus latency), high resolution, three dimensional tracks are reconstructed. Trigger decisions are derived from track momenta, multiplicities and topologies. At the third trigger level a farm of commercial PowerPC boards allows a partial event reconstruction. Within the L3 latency of 100 mus exclusive final states (e.g. D*,J/psi) are identified using track based invariant mass calculations. In addition an on-line particle identification of electrons and muons with additional information from other subdetectors is performed. First results obtained from the third level, which is fully operational since 2006, are presented.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125337215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CMS Remote Monitoring at Fermilab","authors":"A. L. Stone","doi":"10.1109/RTC.2007.4382782","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382782","url":null,"abstract":"The recent activities for remote monitoring operations at Fermilab are described the Compact Muon Solenoid (CMS) experiment is in the commissioning stages of the data acquisition, trigger, sub-detector and data transfer systems, and it is vital that a coherent and effective monitoring system be developed for the experts as well as local and remote shift crews. The experiences and contributions of the Fermilab participation in the first CMS global data taking with vertical slices of several sub-detectors using cosmic rays during the Magnet Test and Cosmic Challenge are presented. The involvement from Fermilab in the Hadronic Calorimeter Test Beam and the Tracker Slice Test operations and monitoring are detailed. Also discussed are some general monitoring tools being developed at Fermilab such as Web-based monitoring and the screen snapshot service.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125509433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CDF Event Monitoring System and Operation","authors":"K. Maeshima","doi":"10.1109/RTC.2007.4382737","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382737","url":null,"abstract":"The foundation of the CDF Run II online event monitoring framework was implemented well before the start of the physics runs, allowing development of a coherent monitoring software across all the subsystems, consequently making maintenance and operation simple and efficient. Only one shift person is needed to monitor the entire CDF detector, including the trigger system. High data quality is assured in real time and well defined monitoring results are propagated coherently to offline data sets used for physics analysis. We describe the CDF Run II online event monitoring system and operation, including the remote monitoring shift operation started in November 2006.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"713 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116125289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Acernese, P. Amico, M. Alshourbagy, F. Antonucci, S. Aoudia, P. Astone, S. Avino, D. Babusci, G. Ballardin, F. Barone, L. Barsotti, M. Barsuglia, T. Bauer, F. Beauville, S. Bigotta, M. Bizouard, C. Boccara, F. Bondu, L. Bosi, C. Bradaschia, S. Birindelli, S. Braccini, J. V. D. Brand, A. Brillet, V. Brisson, D. Buskulic, E. Calloni, E. Campagna, E. Campagna, F. Carbognani, F. Cavalier, R. Cavalieri, G. Cella, E. Cesarini, E. Cesarini, C. Mottin, N. Christensen, A. Clapson, F. Cleva, C. Corda, A. Corsi, F. Cottone, J. Coulon, E. Cuoco, A. Dari, V. Dattilo, M. Davier, M. Prete, R. Rosa, L. D. Fiori, A. Virgilio, B. Dujardin, A. Eleuteri, M. Evans, I. Ferrante, F. Fidecaro, I. Fiori, R. Flaminio, J. Fournier, S. Frasca, F. Frasconi, L. Gamaitoni, F. Garuli, E. Génin, A. Gennai, A. Giazotto, G. Giordano, L. Giordano, R. Gouaty, D. Grosjean, G. Guidi, G. Guidi, S. Hamdani, S. Hebri, H. Heitmann, P. Hello, D. Huet, S. Karkar, S. Kreckelbergh, P. Penna, M. Laval, N. Leroy, N. Letendre, B. Lopez, M. Lorenzini,
{"title":"The Real-time Distributed Control of the Virgo Interferometric Detector of Gravitational Waves","authors":"F. Acernese, P. Amico, M. Alshourbagy, F. Antonucci, S. Aoudia, P. Astone, S. Avino, D. Babusci, G. Ballardin, F. Barone, L. Barsotti, M. Barsuglia, T. Bauer, F. Beauville, S. Bigotta, M. Bizouard, C. Boccara, F. Bondu, L. Bosi, C. Bradaschia, S. Birindelli, S. Braccini, J. V. D. Brand, A. Brillet, V. Brisson, D. Buskulic, E. Calloni, E. Campagna, E. Campagna, F. Carbognani, F. Cavalier, R. Cavalieri, G. Cella, E. Cesarini, E. Cesarini, C. Mottin, N. Christensen, A. Clapson, F. Cleva, C. Corda, A. Corsi, F. Cottone, J. Coulon, E. Cuoco, A. Dari, V. Dattilo, M. Davier, M. Prete, R. Rosa, L. D. Fiori, A. Virgilio, B. Dujardin, A. Eleuteri, M. Evans, I. Ferrante, F. Fidecaro, I. Fiori, R. Flaminio, J. Fournier, S. Frasca, F. Frasconi, L. Gamaitoni, F. Garuli, E. Génin, A. Gennai, A. Giazotto, G. Giordano, L. Giordano, R. Gouaty, D. Grosjean, G. Guidi, G. Guidi, S. Hamdani, S. Hebri, H. Heitmann, P. Hello, D. Huet, S. Karkar, S. Kreckelbergh, P. Penna, M. Laval, N. Leroy, N. Letendre, B. Lopez, M. Lorenzini, ","doi":"10.1109/RTC.2007.4382801","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382801","url":null,"abstract":"The VIRGO experiment for the detection of gravitational waves is a big challenge both for physics and for technology, in particular, to satisfy the stringent requirements on the alignment and position of its suspended optical components to keep the detector at its working point, a very complex distributed and supervised control system has been implemented. The current constraints are about 10-10 m RMS for the longitudinal control ( \"Locking\" ) and 10-9 rad RMS for the angular degrees of freedom ( \" Alignment \" ). These requirements are satisfied by means of a specially designed hierarchical architecture for the local control system, necessary for managing the hard task of filtering all the environments noises that limit the sensitivity of the interferometer, supervised by a distributed global control system to maintain the detector fully operational. In this paper we described the status of the real - time distributed control system of the Virgo interferometric detector of Gravitational waves, its performances and planned improvements.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114080417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Data Acquisition and Transport for NEMO Project","authors":"F. Ameli","doi":"10.1109/RTC.2007.4382828","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382828","url":null,"abstract":"NEMO collaboration is planning to build an underwater neutrino telescope located South-East off the Sicily coast. This paper will describe the concepts underlying the communication link design going over the whole data acquisition and transport from the front-end electronics, with signal digitization and transmission, to the module gathering four front-end boards and sending data on-shore through a fiber optic link which relies on Dense Wavelength Division Multiplexing. An on-shore board, plugged into a PC, extracts and distributes data both to first-level trigger and control systems. Underwater apparatus monitoring and control is guaranteed by the use of oceanographic instruments and dedicated sensors, whose data are packed and sent back to shore using the same optical link. The communication is fully bidirectional, allowing control information to be exchanged. The architecture described here provides a complete real-time data transport layer between the onshore laboratory and the underwater detector.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129913042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Almeida, M. Dobson, A. Kazarov, G. Miotto, J. Sloper, I. Soloviev, R. C. Torres
{"title":"The ATLAS DAQ System Online Configurations Database Service Challenge","authors":"J. Almeida, M. Dobson, A. Kazarov, G. Miotto, J. Sloper, I. Soloviev, R. C. Torres","doi":"10.1109/RTC.2007.4382770","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382770","url":null,"abstract":"This paper describes challenging requirements on the configuration service for the ATLAS experiment at CERN. It presents the status of the implementation and testing one year before the start of data taking, providing details of: 1. the capabilities of the underlying OKS object manager to store and to archive configuration descriptions, its user and programming interfaces; 2. the organization of configuration descriptions for different types of data taking runs and combinations of participating sub-detectors; 3. the scalable architecture to support simultaneous access to the service by thousands of processes during the online configuration stage of ATLAS; 4. the experience with the usage of the configuration service during large scale tests, test beam, commissioning and technical runs. The paper also presents pro and contra of the chosen object-oriented implementation compared with solutions based on pure relational database technologies, and explains why after several years of usage we continue with our approach.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124094269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamic Error Recovery in The ATLAS TDAQ System","authors":"J. Sloper, G. Miotto, E. Hines","doi":"10.1109/RTC.2007.4382743","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382743","url":null,"abstract":"This paper describes the new dynamic recovery mechanisms in the ATLAS Trigger and Data AcQuisition (TDAQ) system. The purpose is to minimize the impact certain errors and failures have on the system. The new recovery mechanisms are capable of analysing and recovering from a variety of errors, both software and hardware, without stopping the data gathering operations. It incorporates an expert system to perform the analysis of the errors and to decide what measures are needed. Due to the wide array of sub-systems there is also a need to optimize the way similar errors are handled for the different sub-systems. The main focus of the paper is to consider the design and implementation of the new recovery mechanisms and how expert knowledge is gathered from the different sub-systems and implemented in the recovery procedures.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114803324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Achenbach, P. Adragna, V. Andrei, B. Barnett, B. Bauss, M. Bendel, C. Bohm, J. Booth, L. Brawn, D. Charlton, C. Curtis, A. Davis, E. Eisenhandler, P. Faulkner, F. Fohlisch, C. Gee, C. Geweniger, A. Gillman, P. Hanke, S. Hellman, A. Hidvégi, S. Hillier, M. Johansen, E. Kluge, M. Landon, V. Lendermann, K. Mahboubi, G. Mahout, K. Meier, V. Perera, D. Prieur, W. Qian, S. Rieke, F. Ruhr, D. Sankey, U. Schafer, K. Schmitt, H. Schultz-Coulon, S. Silverstein, R. Staley, R. Stamen, S. Tapprogge, J.P. Thomas, T. Trefzger, P. Watkins, A. Watson, P. Weber, E. Woehrling
{"title":"Commissioning Experience with the ATLAS Level-1 Calorimeter Trigger System","authors":"R. Achenbach, P. Adragna, V. Andrei, B. Barnett, B. Bauss, M. Bendel, C. Bohm, J. Booth, L. Brawn, D. Charlton, C. Curtis, A. Davis, E. Eisenhandler, P. Faulkner, F. Fohlisch, C. Gee, C. Geweniger, A. Gillman, P. Hanke, S. Hellman, A. Hidvégi, S. Hillier, M. Johansen, E. Kluge, M. Landon, V. Lendermann, K. Mahboubi, G. Mahout, K. Meier, V. Perera, D. Prieur, W. Qian, S. Rieke, F. Ruhr, D. Sankey, U. Schafer, K. Schmitt, H. Schultz-Coulon, S. Silverstein, R. Staley, R. Stamen, S. Tapprogge, J.P. Thomas, T. Trefzger, P. Watkins, A. Watson, P. Weber, E. Woehrling","doi":"10.1109/RTC.2007.4382863","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382863","url":null,"abstract":"The ATLAS Level-1 Calorimeter Trigger is one of the main elements of the first stage of event selection for the ATLAS experiment at the LHC. The input stage consists of a mixed analogue/digital component taking trigger sums from the ATLAS calorimeters. The trigger logic is performed in a digital, pipelined system with several stages of processing, largely based on FPGAs, which perform programmable algorithms in parallel with a fixed latency to process about 300 Gbyte/s of input data. The real-time output consists of counts of different types of physics objects and energy sums. The production of final modules started in 2006, and installation of these modules and the necessary infrastructure at ATLAS has been underway for some time, with the intention of having a full system in situ during 2007, before first collisions at the LHC. The first experiences of commissioning and running the full scale system will be presented, along with results from integration tests performed with the upstream calorimeters, and the downstream trigger and data flow systems.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124208864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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