A. Amorim, J. Batista, M. Brandao, S. Kolos, R. Neves, P. Pereira
{"title":"A Database Visualization Tool for ATLAS Monitoring Objects","authors":"A. Amorim, J. Batista, M. Brandao, S. Kolos, R. Neves, P. Pereira","doi":"10.1109/RTC.2007.4382812","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382812","url":null,"abstract":"The data quality and trigger performance monitorization of the ATLAS/LHC detector poses new challenges. The monitorization data will be managed by the ATLAS TDAQ Monitoring framework, and stored using the Monitoring Data Archive (MDA). We present the implementation of the ONline Objects Extended Database BrowsEr (NODE), designed to access and display MDA data, in particular its histograms. To cope with the special nature of the Monitoring objects, a plug-in from the MDA framework to the Temporal Instrumental Databases (TIDB2) is used. The database browser is extended, in particular, to include operations on histograms like display, overlap, comparisons, as well as commenting and local copy saving.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"88 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":"122849075","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}
I. Bizjak, F. Chlebana, G. Guglielmo, T. Masubuchi, K. McFarland, W. Sakumoto, R. E. Sarkis, M. Shimojima, F. Snider, G. Yu, D. Zhang
{"title":"Upgrade of the CDF Run II Data Logger","authors":"I. Bizjak, F. Chlebana, G. Guglielmo, T. Masubuchi, K. McFarland, W. Sakumoto, R. E. Sarkis, M. Shimojima, F. Snider, G. Yu, D. Zhang","doi":"10.1109/RTC.2007.4382823","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382823","url":null,"abstract":"The Consumer-Server/Logger (CSL) is the final component in the CDF Data Acquisition chain before data are archived to tape. The CSL buffers data in separate data streams, records file meta information into a database and sends a fraction of events to online processors for real time monitoring of data quality. Recently, the CSL was upgraded in order to increase the logging capacity to 80 MB/s. The upgrade consists of commodity servers running Linux. A \"Receiver node\" distributes data via Gigabit Ethernet to eight parallel \"Logger nodes\" connected to external disk arrays via a Fibre Channel network. A redundant design and the availability of inexpensive large capacity disk arrays provides a highly available system that is scalable and easy to maintain. We present a description of the CSL upgrade and discuss the experience gained through commissioning to operations.","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":"129888791","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}
L. Lopes, A. Amorim, J. Simões, P. Pereira, I. Soloviev, S. Kolos, M. Caprini
{"title":"Online access to ATLAS Conditions Databases","authors":"L. Lopes, A. Amorim, J. Simões, P. Pereira, I. Soloviev, S. Kolos, M. Caprini","doi":"10.1109/RTC.2007.4382816","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382816","url":null,"abstract":"The access of the ATLAS Trigger and DAQ systems to the conditions databases involves specific requirements on reliability, performance and integration with the online services. We describe the applications that were developed to interface the online information services and the configuration setup to the conditions databases and also to test the direct access from the online computing farms. The online asynchronous interface to cool (ONASIC), interfaces the information service (IS) with LCG/COOL and avoids backpressure from offline database servers. OKS2COOL, is an API developed both to handle schema migration from online configurations database into offline conditions database and to archive TDAQ configurations. To study the performance of simultaneous conditions database read accesses in the context of the ATLAS high level trigger system the DBStressor application was developed and deployed.","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":"129979924","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. Perazzo, R. Herbst, M. Huffer, C. O'Grady, L. Sapozhnikov, E. Siskind, D. Tarkington, M. Weaver
{"title":"Camera Data Acquisition for the Large Synoptic Survey Telescope","authors":"A. Perazzo, R. Herbst, M. Huffer, C. O'Grady, L. Sapozhnikov, E. Siskind, D. Tarkington, M. Weaver","doi":"10.1109/RTC.2007.4382849","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382849","url":null,"abstract":"The Large Synoptic Survey Telescope (LSST) is a proposed ground-based 8.4-meter telescope operating in the visible band. The LSST Camera Control System (CCS) will manage the activities of the various camera subsystems and coordinate those activities with the LSST Observatory Control System (OCS). The most demanding component of the CCS is the Science Array Data Acquisition Subsystem (SDS). Its principal responsibilities are to receive science data from the camera, perform cross-talk correction, reorganize, buffer and, finally, distribute these data to down stream clients. SDS will use System on Chip (SoC) technologies and high speed protocols like 10 Gb Ethernet. This paper will describe the SDS requirements, its conceptual design and the current development status.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"9 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":"116382474","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":"Controlling a large Data Acquisition System using an industrial SCADA System","authors":"S. Koestner","doi":"10.1109/RTC.2007.4382798","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382798","url":null,"abstract":"LHCb is one of the experiments currently under construction for the start-up of the Large Hadron Collider at CERN. It consists of various specific subsystems which themselves comprise a large amount of detectors requiring sophisticated readout electronics and a complex data acquisition system. To control the complete data acquisition system at the level of an expert system, an Experiment Control System is put in place, which is based on a commercial SCADA product (PVSS) and a controls Framework (JCOP) common to all experiments at LHC. We report here on the structured software layers of the whole system as well as its integration into the experiment. A focus is given on the protocols in use as well as the required hardware. The hierarchical structure which allows propagating commands down to the subsystems is explained. Via finite state machines an autorecovery scenario from error states can be defined. Before start-up, the configuration of all the registers is downloaded to the hardware via recipes depending on the type of run.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"15 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":"116474468","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":"The Test Stand System for the PHENIX iFVTX Silicon Detector","authors":"R. Rivera, M. Turqueti","doi":"10.1109/RTC.2007.4382808","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382808","url":null,"abstract":"PHENIX is the largest of the four experiments currently taking data at the Relativistic Heavy Ion Collider (RHIC), and the iFVTX is a new pixel tracker which will be installed in the forward tracker region of PHENIX. Fermilab has developed a complete test stand system for the examination of FPix2.1 modules, hybrids, and pixel chips that will be installed in the iFVTX. The system is currently in use for chip, module, and wafer testing at Fermilab. The test stand architecture is flexible and can be adapted to new requirements. In this paper, the software and hardware integration will be discussed followed by an analysis of the advantages of choosing a modular approach for the system. Finally, a selection of tests supported by the system, along with sample results, will be presented and explained.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"10 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":"122750995","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. Laubser, P. Perret, H. Chanal, R. Cornat, O. Deschamps, M. Magne
{"title":"The Level 0 trigger decision unit for the LHCb experiment","authors":"J. Laubser, P. Perret, H. Chanal, R. Cornat, O. Deschamps, M. Magne","doi":"10.1109/RTC.2007.4382860","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382860","url":null,"abstract":"The LHCb experiment is currently being installed at the Large Hadron Collider at CERN (Geneva, Switzerland). In order to reduce the amount of data storage for offline analysis, a trigger system is required. The Level-0 Decision Unit (LODU) is the central part of the first trigger level. It is a full custom 16 layers board using advanced FPGAs in BGA package. The LODU receives information from the Level-0 sub-triggers (432 bits @ 80 MHz) which transmit the data via high speed optical links running at 1.6 Gb/s. The processing is implemented using a 40 MHz synchronous pipelined architecture. It performs a simple physical algorithm to compute at 40 MHz the Level-0 trigger decision in order to reduce the data flow down to 1 MHz for the next trigger level. The internal design of the processing FPGA is mainly composed by a Partial Data Processing (PDP) and a Trigger Definition Unit (TDU). The aim of the PDP is to adjust the clock phase, perform the time alignment, prepare the data for the TDU and monitor the data processing. The TDU is flexible and allows to fully re-configure all the trigger conditions without any re-programming the FPGAs through the Experiment Control System (ECS).","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"37 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":"125733467","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":"High Reliability System Design Experience with the Gamma Ray Large Area Space Telescope","authors":"J. Thayer","doi":"10.1109/RTC.2007.4382764","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382764","url":null,"abstract":"The Large Area Telescope (LAT) is the primary instrument on the Gamma Ray Large Area Space Telescope (GLAST), a space based observatory which is scheduled to launch late this year. The LAT traces its heritage from the particle physics community and represents a large departure in design and capability from previous space based experiments. Similarly, power, communication, and physical access limitations of a space based platform place strict requirements on the design and reliability of both the LAT and its Trigger and Dataflow (T&DF) system. The resulting T&DF system consists of a hierarchical trigger with both Level 0 and Level 3 components, distributed event processing, and slow control. We describe our experiences developing and testing the T&DF system in the context of a space mission, and we report the performance and status of the system as GLAST approaches launch.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"41 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":"125148783","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}
H. Nishino, K. Awai, Y. Hayato, K. Kaneyuki, S. Nakayama, K. Okumura, M. Shiozawa, A. Takeda, Y. Arai, K. Ishikawa, A. Minegishi
{"title":"Development of New Front-End Electronics for Super-Kamiokande","authors":"H. Nishino, K. Awai, Y. Hayato, K. Kaneyuki, S. Nakayama, K. Okumura, M. Shiozawa, A. Takeda, Y. Arai, K. Ishikawa, A. Minegishi","doi":"10.1109/RTC.2007.4382761","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382761","url":null,"abstract":"Super-Kamiokande is a ring imaging water Cherenkov detector for astro-particle physics that consists of 50 kton pure water and about 13000 photomultiplier tubes (PMTs). We are planning to upgrade all the front-end electronics in next year. By high speed signal processing electronics, we will record all the hits of all the PMTs without any hardware filtering, aiming observations of much fainter signals of the supernova relic neutrinos, lower energy (~3 MeV) solar neutrinos, neutrino burst from nearby galactic supernova, and so on. The energy resolutions of multi-GeV atmospheric neutrino events will also be improved by the electronics. The new front-end electronics is based on a charge to time converter (QTC) and a multi-hit TDC. TCP/IP based readout channel is implemented to handle large amounts of data. We have developed a custom ASIC QTC and evaluated the characteristics of the chip and the prototypical board; high-speed (1 MHz cycle), high sensitivity for single photo-electron signal, good charge (0.1 pC RMS) and timing (0.3 ns RMS) responses, and wide charge dynamic range (2500 pC). In this paper, the design and the performance of the front-end board are discribed.","PeriodicalId":217483,"journal":{"name":"2007 15th IEEE-NPSS Real-Time Conference","volume":"34 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":"128053272","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. Abulencia, P. Azzurri, W. Brian, E. Cochran, J. Dittmann, S. Donati, J. Efron, R. Erbacher, D. Errede, I. Fedorko, G. Flanagan, R. Forrest, M. Frank, J. Gartner, H. Gerberich, S. Hewamanage, S. Holm, R. Hughes, A. Ivanov, M. Johnson, M. Jones, T. Junk, M. Kasten, B. Kilminster, R. Klein, N. Krumnack, K. Lannon, S. Levine, A. Lister, J. McKim, R. Mokos, D. Olivito, B. Parks, K. Pitts, E. Rogers, E. Schmidt, L. Scott, T. Shaw, J. Slaunwhite, A. Soha, A. Staveris, G. Veramendi, J.S. Wilson, P. Wilson, B. Winer
{"title":"The CDF II Level 1 Track Trigger Upgrade","authors":"A. Abulencia, P. Azzurri, W. Brian, E. Cochran, J. Dittmann, S. Donati, J. Efron, R. Erbacher, D. Errede, I. Fedorko, G. Flanagan, R. Forrest, M. Frank, J. Gartner, H. Gerberich, S. Hewamanage, S. Holm, R. Hughes, A. Ivanov, M. Johnson, M. Jones, T. Junk, M. Kasten, B. Kilminster, R. Klein, N. Krumnack, K. Lannon, S. Levine, A. Lister, J. McKim, R. Mokos, D. Olivito, B. Parks, K. Pitts, E. Rogers, E. Schmidt, L. Scott, T. Shaw, J. Slaunwhite, A. Soha, A. Staveris, G. Veramendi, J.S. Wilson, P. Wilson, B. Winer","doi":"10.1109/RTC.2007.4382856","DOIUrl":"https://doi.org/10.1109/RTC.2007.4382856","url":null,"abstract":"The CDF II detector uses dedicated hardware to identify charged tracks that are used in an important class of Level 1 trigger decisions. Until now, this hardware identified track segments based on patterns of hits on only the axial sense wires in the tracking chamber and determined the transverse momentum of track candidates from patterns of track segments. This identification is efficient but produces trigger rates that grow rapidly with increasing instantaneous luminosity. High trigger rates are a consequence of the large numbers of low momentum tracks produced in inelastic pp macr collisions which generate overlapping patterns of hits that match those expected for high-momentum tracks. A recently completed upgrade to the Level 1 track trigger system makes use of information from stereo wires in the tracking chamber to reduce the rate of false triggers while maintaining high efficiency for real high momentum particles. We describe the new electronics used to instrument the additional sense wires, identify track segments and correlate these with the track candidates found by the original track trigger system. The performance of this system is characterized in terms of the efficiency for identifying charged particles and the improved rejection of axial track candidates that do not correspond to real particles.","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":"128525320","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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