National Library of Energy BETA

Sample records for atlas irena launches

  1. IRENA launches global atlas of renewable energy potential | OpenEI

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoringUtilities CommEnergy,INTA

  2. IRENA 2013 1 Frank Wouters

    E-Print Network [OSTI]

    Canet, Léonie

    .7 TWh." IEA World Energy Outlook, published in 1998 2007 ­ Photon Consulting · "Solar cell in a sustainable manner: Bioenergy Geothermal Hydropower Ocean Solar Wind Energy Energy Energy Energy © IRENA 2013;Energy Transformation: PV #12;Predictions for Solar in 2010 1995 - EPIA · "The official installed target

  3. IRENA Global Atlas | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on Openei | Open Energy2010) |OutlookINDEX JumpIR

  4. Integral closures of ideals and rings Irena Swanson

    E-Print Network [OSTI]

    Swanson, Irena

    Integral closures of ideals and rings Irena Swanson ICTP, Trieste School on Local Rings and Local Theorem, completions). In the first lecture I will present the basics of integral closure with very few material. Table of contents: Section 1: Integral closure of rings and ideals 1 Section 2: Integral closure

  5. International Renewable Energy Agency (IRENA) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA) Jump to: navigation, search Logo: International

  6. ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow,ARM: ThreeATHENA could reduce ATLAS

  7. ?????????? ??????? ????????, ???????? ? ???????????? ?????????? ????????? ????????? ??????????? ????????? ? ???????????? ATLAS (????)

    E-Print Network [OSTI]

    Mashinistov, Ruslan

    2011-01-01

    The thesis is devoted to research, analysis, development and implementation of software for the detector monitoring, for database tools and also for recorded data quality control of the ATLAS Transition Radiation Tracker (TRT). The TRT is the outermost of the three sub-systems of the ATLAS inner tracking detector at the Large Hadron Collider (LHC) at CERN and is one of the important tools to reconstruct tracks of charged particles and to identify the particle species. TRT contains more than 350,000 channels of information and reading more than 22600 units of electronics. The TRT consists of thin proportional chambers either in the form of straws embedded in fibers or with foils and straws in separate layers. Straws are providing the registration the time and amplitude parameters of a signal. Readout electronics set two independent thresholds to cut the noises and separate the transition radiation events. Different effects and conditions as synchronization of a time parameters of the detector and LHC are influ...

  8. On the Approximability of Comparing Genomes with Sebastien Angibaud, Guillaume Fertin, and Irena Rusu

    E-Print Network [OSTI]

    Fertin, Guillaume

    On the Approximability of Comparing Genomes with Duplicates Sâ??ebastien Angibaud, Guillaume Fertin.angibaud,guillaume.fertin,irena.rusu}@univ­nantes.fr Abstract. A central problem in comparative genomics consists in computing a (dis­)simi­ larity measure between two genomes, e.g. in order to construct a phylogenetic tree. A large number of such measures has

  9. On the Approximability of Comparing Genomes with Sebastien Angibaud, Guillaume Fertin, and Irena Rusu

    E-Print Network [OSTI]

    Fertin, Guillaume

    On the Approximability of Comparing Genomes with Duplicates S´ebastien Angibaud, Guillaume Fertin.angibaud,guillaume.fertin,irena.rusu}@univ-nantes.fr Abstract. A central problem in comparative genomics consists in computing a (dis-)simi- larity measure between two genomes, e.g. in order to construct a phylogenetic tree. A large number of such measures has

  10. Irena : tool suite for modeling and analysis of small-angle scattering.

    SciTech Connect (OSTI)

    Ilavsky, J.; Jemian, P.

    2009-04-01

    Irena, a tool suite for analysis of both X-ray and neutron small-angle scattering (SAS) data within the commercial Igor Pro application, brings together a comprehensive suite of tools useful for investigations in materials science, physics, chemistry, polymer science and other fields. In addition to Guinier and Porod fits, the suite combines a variety of advanced SAS data evaluation tools for the modeling of size distribution in the dilute limit using maximum entropy and other methods, dilute limit small-angle scattering from multiple non-interacting populations of scatterers, the pair-distance distribution function, a unified fit, the Debye-Bueche model, the reflectivity (X-ray and neutron) using Parratt's formalism, and small-angle diffraction. There are also a number of support tools, such as a data import/export tool supporting a broad sampling of common data formats, a data modification tool, a presentation-quality graphics tool optimized for small-angle scattering data, and a neutron and X-ray scattering contrast calculator. These tools are brought together into one suite with consistent interfaces and functionality. The suite allows robust automated note recording and saving of parameters during export.

  11. Program Launch Letter from Mayor

    Broader source: Energy.gov [DOE]

    Program Launch Letter from Mayor, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  12. ATLAS Data Preservation Policy

    E-Print Network [OSTI]

    The ATLAS collaboration

    2015-01-01

    The principal intent of this document is to describe the ATLAS policy ensuring that its data are maintained reliably in a form accessible to ATLAS members. A separate document describes the ATLAS policy for making its data available, and potentially useful, to scientists who are not members of ATLAS.

  13. Enabling effective product launch decisions

    E-Print Network [OSTI]

    Akamphon, Sappinandana

    2008-01-01

    The present work looks into the question of optimizing the performance of product launch decisions-in particular, the decisions of product development duration and manufacturing ramp-up. It presents an innovative model for ...

  14. Southeast Energy Efficiency Alliance Launches Finance Network...

    Energy Savers [EERE]

    Southeast Energy Efficiency Alliance Launches Finance Network Southeast Energy Efficiency Alliance Launches Finance Network Photo of two hands holding dollar bills shaped like a...

  15. Energy Department Launches Alternative Fueling Station Locator...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App November 7, 2013 - 11:16am Addthis As part of the Obama...

  16. BNL ATLAS Grid Computing

    ScienceCinema (OSTI)

    Michael Ernst

    2010-01-08

    As the sole Tier-1 computing facility for ATLAS in the United States and the largest ATLAS computing center worldwide Brookhaven provides a large portion of the overall computing resources for U.S. collaborators and serves as the central hub for storing,

  17. IRENA | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoringUtilities CommEnergy,INTAIRENA Home

  18. OpenEI Community - IRENA

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to:InformationInformationOorjaen TheGeothermal NEPAHawai'i Meeting

  19. Automated Transportation Logistics and Analysis System (ATLAS...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Packaging and Transportation Automated Transportation Logistics and Analysis System (ATLAS) Automated Transportation Logistics and Analysis System (ATLAS) The Department of...

  20. A Quantitative Analysis of Previously Launched Adults 

    E-Print Network [OSTI]

    Farris, Demetrea Nicole

    2012-02-14

    Young adults are moving back into their family homes and are now living with their parents. Common terms for the adult children include "previously launched adult" and "incompletely launched adult." I used data from Wave 3 (2001 to 2003...

  1. Ghana Green Building Council public launch

    E-Print Network [OSTI]

    Ghana Green Building Council public launch examples of green buildings in South Africa eric noir, WSP GBD 17 August 2011 #12;Ghana Green Building Council public launch | examples of green buildings in South Africa GREEN by DESIGN PLATINUM GOLD MAJORSPONSORS #12;Ghana Green Building Council public launch

  2. Top Physics at ATLAS

    E-Print Network [OSTI]

    Marcello Barisonzi

    2005-08-02

    The Large Hadron Collider LHC is a top quark factory: due to its high design luminosity, LHC will produce about 200 millions of top quarks per year of operation. The large amount of data will allow to study with great precision the properties of the top quark, most notably cross-section, mass and spin. The Top Physics Working Group has been set up at the ATLAS experiment, to evaluate the precision reach of physics measurements in the top sector, and to study the systematic effects of the ATLAS detector on such measurements. This reports give an overview of the main activities of the ATLAS Top Physics Working Group in 2004.

  3. ATLAS Metadata Task Force

    SciTech Connect (OSTI)

    ATLAS Collaboration; Costanzo, D.; Cranshaw, J.; Gadomski, S.; Jezequel, S.; Klimentov, A.; Lehmann Miotto, G.; Malon, D.; Mornacchi, G.; Nemethy, P.; Pauly, T.; von der Schmitt, H.; Barberis, D.; Gianotti, F.; Hinchliffe, I.; Mapelli, L.; Quarrie, D.; Stapnes, S.

    2007-04-04

    This document provides an overview of the metadata, which are needed to characterizeATLAS event data at different levels (a complete run, data streams within a run, luminosity blocks within a run, individual events).

  4. Launch implementation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EAInvervar HydroElectricColorado:EnergyLaorLaunch implementation Jump

  5. NTR-Enhanced Lunar-Base Supply using Existing Launch Fleet Capabilities

    SciTech Connect (OSTI)

    John D. Bess; Emily Colvin; Paul G. Cummings

    2009-06-01

    During the summer of 2006, students at the Center for Space Nuclear Research sought to augment the current NASA lunar exploration architecture with a nuclear thermal rocket (NTR). An additional study investigated the possible use of an NTR with existing launch vehicles to provide 21 metric tons of supplies to the lunar surface in support of a lunar outpost. Current cost estimates show that the complete mission cost for an NTR-enhanced assembly of Delta-IV and Atlas V vehicles may cost 47-86% more than the estimated Ares V launch cost of $1.5B; however, development costs for the current NASA architecture have not been assessed. The additional cost of coordinating the rendezvous of four to six launch vehicles with an in-orbit assembly facility also needs more thorough analysis and review. Future trends in launch vehicle use will also significantly impact the results from this comparison. The utility of multiple launch vehicles allows for the development of a more robust and lower risk exploration architecture.

  6. Report to users of ATLAS

    SciTech Connect (OSTI)

    Ahmad, I.; Glagola, B. [eds.

    1997-03-01

    This report covers the following topics: (1) status of the ATLAS accelerator; (2) progress in R and D towards a proposal for a National ISOL Facility; (3) highlights of recent research at ATLAS; (4) the move of gammasphere from LBNL to ANL; (5) Accelerator Target Development laboratory; (6) Program Advisory Committee; (7) ATLAS User Group Executive Committee; and (8) ATLAS user handbook available in the World Wide Web. A brief summary is given for each topic.

  7. Ocean Surface Topography Mission/ Jason 2 Launch

    E-Print Network [OSTI]

    Ocean Surface Topography Mission/ Jason 2 Launch PreSS KiT/JUNe 2008 #12;#12;Media Contacts Steve .............................................................................................................................. 7 Why Study Ocean Surface Topography

  8. The Department of Energy Launches Cybersecurity Initiative |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Initiative February 1, 2011 - 12:00pm Addthis Collaborative effort will develop a risk management process guideline WASHINGTON, DC - The Department of Energy is launching...

  9. EERE Launches New Blog | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Office of Energy Efficiency and Renewable Energy (EERE) has launched a new blog. The EERE blog is focused on providing updates on current EERE projects, interviews with energy...

  10. BPA, Energy Northwest launch demand response pilot

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    BPA-Energy-Northwest-launch-demand-response-pilot Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand...

  11. Atlas Finding Aid Contents/Index

    E-Print Network [OSTI]

    Ward, Karen

    Atlas Finding Aid Contents/Index A (1) City & State Atlas A (2) Astronomy Atlas A (3) U.S. Atlas A (4) Water Atlas A (5) South America & Central America A (6) Africa, Asia, &, Antarctica A (7) Mexico) SAN ANTONIO QUICK FINDER MAPS F 1373 .B46 F4 1990 33. A (1) SURFACE WATER RESOURCES OF TEXAS MAPS G

  12. ATLAS TDAQ System Administration:

    E-Print Network [OSTI]

    Lee, Christopher Jon; The ATLAS collaboration; Bogdanchikov, Alexander; Ballestrero, Sergio; Contescu, Alexandru Cristian; Dubrov, Sergei; Fazio, Daniel; Korol, Aleksandr; Scannicchio, Diana; Twomey, Matthew Shaun; Voronkov, Artem

    2015-01-01

    The ATLAS Trigger and Data Acquisition (TDAQ) system is responsible for the online processing of live data, streaming from the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. The online farm is composed of ?3000 servers, processing the data readout from ?100 million detector channels through multiple trigger levels. During the two years of the first Long Shutdown (LS1) there has been a tremendous amount of work done by the ATLAS TDAQ System Administrators, implementing numerous new software applications, upgrading the OS and the hardware, changing some design philosophies and exploiting the High Level Trigger farm with different purposes. During the data taking only critical security updates are applied and broken hardware is replaced to ensure a stable operational environment. The LS1 provided an excellent opportunity to look into new technologies and applications that would help to improve and streamline the daily tasks of not only the System Administrators, but also of the scientists who wil...

  13. Improving ATLAS reprocessing software

    E-Print Network [OSTI]

    Novak, Tadej

    2014-01-01

    For my CERN Summer Student programme I have been working with ATLAS reprocessing group. Data taken at ATLAS experiment is not only processed after being taken, but is also reprocessed multiple times afterwards. This allows applying new alignments, calibration of detector and using improved or faster algorithms. Reprocessing is usually done in campaigns for different periods of data or for different interest groups. The idea of my project was to simplify the definition of tasks and monitoring of their progress. I created a LIST configuration files generator script in Python and a monitoring webpage for tracking current reprocessing tasks.

  14. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiationFutureATLAS

  15. NASA Launches Next-Generation Communications Satellite

    E-Print Network [OSTI]

    Christian, Eric

    .nasa.gov Volume 9 Issue 1 February 2013 #12;T he first of NASA's three next-generation Tracking and Data Relay Space Launch Complex-41. After a three-month test phase, NASA will accept the spacecraft for additional rocket blasts off from Space Launch Complex-41 with NASA's Tracking and Data Relay Satellite (TDRS

  16. Wheat Diseases Atlas

    E-Print Network [OSTI]

    McCoy, Norman L.; Berry, Robert W.

    1982-01-01

    to wheat producers over the state on whose farms demonstrations have been conducted and pic tures for this publication were made. WhEAT DisEASES ATLAs Norman L. McCoy and Robert W Berry* INTRODUCTION Wheat diseases have caused untold human suffer ing...

  17. BioFuels Atlas Presentation

    Office of Energy Efficiency and Renewable Energy (EERE)

    Kristi Moriarity's presentation on NREL's BioFuels Atlas from the May 12, 2011, Clean Cities and Biomass Program State webinar.

  18. Higgs boson search at ATLAS

    E-Print Network [OSTI]

    Scott Snyder; for the ATLAS Collaboration

    2012-09-04

    The status of the ATLAS Higgs boson search using about 5 fb^-1 of data recorded in 2011 is summarized. Proceedings from Physics at the LHC 2012 (Vancouver).

  19. Carbon Sequestration Atlas IV Video

    ScienceCinema (OSTI)

    Rodosta, Traci

    2014-06-27

    The Carbon Sequestration Atlas is a collection of all the storage sites of CO2 such as, petroleum, natural gas, coal, and oil shale.

  20. Carbon Sequestration Atlas IV Video

    SciTech Connect (OSTI)

    Rodosta, Traci

    2013-04-19

    The Carbon Sequestration Atlas is a collection of all the storage sites of CO2 such as, petroleum, natural gas, coal, and oil shale.

  1. FEMP Launches New Training Search Tool | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    FEMP Launches New Training Search Tool FEMP Launches New Training Search Tool November 18, 2014 - 4:58pm Addthis The Federal Energy Management Program (FEMP) recently launched the...

  2. International Partnership for Geothermal Technology Launches...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technology Launches Website November 18, 2008 - 2:52pm Addthis Geothermal energy, with EGS, has the potential to be the world's only renewable baseload power source. It is clean,...

  3. Energy Department Launches Virtual Hackathon to Build the Next...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Launches Virtual Hackathon to Build the Next Big Solar Software Solutions Energy Department Launches Virtual Hackathon to Build the Next Big Solar Software Solutions February 20,...

  4. Department of Energy Launches Major Initiative to Increase Energy...

    Energy Savers [EERE]

    Department of Energy Launches Major Initiative to Increase Energy Savings Across the Nationwide DOE Complex by 30 Percent Department of Energy Launches Major Initiative to Increase...

  5. Countries Launch Initiative to Drive Energy Efficiency in the...

    Office of Environmental Management (EM)

    Countries Launch Initiative to Drive Energy Efficiency in the Commercial and Industrial Sectors Countries Launch Initiative to Drive Energy Efficiency in the Commercial and...

  6. Northern New Mexico Citizens' Advisory Board Launches Revitalized...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Northern New Mexico Citizens' Advisory Board Launches Revitalized Website Northern New Mexico Citizens' Advisory Board Launches Revitalized Website November 10, 2015 - 2:30pm...

  7. DOE Launches New Energy Efficiency and Renewable Energy Advisory...

    Energy Savers [EERE]

    DOE Launches New Energy Efficiency and Renewable Energy Advisory Committee DOE Launches New Energy Efficiency and Renewable Energy Advisory Committee November 12, 2010 - 12:00am...

  8. DOE to Launch Collaborative Effort with Industry to Improve Natural...

    Energy Savers [EERE]

    DOE to Launch Collaborative Effort with Industry to Improve Natural Gas Systems DOE to Launch Collaborative Effort with Industry to Improve Natural Gas Systems July 30, 2014 -...

  9. Energy Department Launches Public-Private Initiative to Help...

    Energy Savers [EERE]

    Launches Public-Private Initiative to Help Oil and Natural Gas Industry Strengthen Its Cybersecurity Capabilities Energy Department Launches Public-Private Initiative to Help Oil...

  10. Office of Energy Efficiency and Renewable Energy Launches New...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Office of Energy Efficiency and Renewable Energy Launches New Blog and Revamped Website Office of Energy Efficiency and Renewable Energy Launches New Blog and Revamped Website...

  11. Obama Administration Launches $130 Million Building Energy Efficiency...

    Energy Savers [EERE]

    Administration Launches 130 Million Building Energy Efficiency Effort Obama Administration Launches 130 Million Building Energy Efficiency Effort February 12, 2010 - 12:00am...

  12. Obama Adminstration Announces Launch of i6 Green Challenge to...

    Energy Savers [EERE]

    Adminstration Announces Launch of i6 Green Challenge to Promote Clean Energy Innovation and Economic Growth Obama Adminstration Announces Launch of i6 Green Challenge to Promote...

  13. Obama Administration Announces Launch of i6 Green Challenge to...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Obama Administration Announces Launch of i6 Green Challenge to Promote Clean Energy Innovation and Economic Growth Obama Administration Announces Launch of i6 Green Challenge to...

  14. SEP Success Story: "Green Launching Pad" Supports Clean Energy...

    Energy Savers [EERE]

    "Green Launching Pad" Supports Clean Energy Small Businesses SEP Success Story: "Green Launching Pad" Supports Clean Energy Small Businesses May 24, 2012 - 5:10pm Addthis Green...

  15. FACTSHEET: Energy Department Launches Open-Source Online Training...

    Energy Savers [EERE]

    FACTSHEET: Energy Department Launches Open-Source Online Training Resource to Help Students, Workers Gain Valuable Skills FACTSHEET: Energy Department Launches Open-Source Online...

  16. Energy Department Launches New Data-Driven Initiative to Help...

    Energy Savers [EERE]

    Launches New Data-Driven Initiative to Help Cities, States Advance Building Efficiency Energy Department Launches New Data-Driven Initiative to Help Cities, States Advance Building...

  17. Energy Department to Launch New Energy Innovation Hub Focused...

    Office of Environmental Management (EM)

    to Launch New Energy Innovation Hub Focused on Advanced Batteries and Energy Storage Energy Department to Launch New Energy Innovation Hub Focused on Advanced Batteries and Energy...

  18. Connecticut launches nation's first statewide Home Energy Score...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    launches nation's first statewide Home Energy Score Program Connecticut launches nation's first statewide Home Energy Score Program May 19, 2015 - 5:21pm Addthis Connecticut...

  19. DOE Launches Natural Gas Infrastructure R&D Program Enhancing...

    Energy Savers [EERE]

    DOE Launches Natural Gas Infrastructure R&D Program Enhancing Pipeline and Distribution System Operational Efficiency, Reducing Methane Emissions DOE Launches Natural Gas...

  20. Fuel Cell Technologies Office Launches National Laboratory Tech...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technologies Office Launches National Laboratory Tech-to-Market Activities Fuel Cell Technologies Office Launches National Laboratory Tech-to-Market Activities November 3, 2014 -...

  1. Secretary Moniz Announces the Launch of New Veterans' Utility...

    Energy Savers [EERE]

    Moniz Announces the Launch of New Veterans' Utility Industry Transition Effort Secretary Moniz Announces the Launch of New Veterans' Utility Industry Transition Effort June 8, 2015...

  2. WESTCARB Carbon Atlas

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The West Coast Regional Carbon Sequestration Partnership (known as WESTCARB) was established in Fall 2003. It is one of seven research partnerships co-funded by DOE to characterize regional carbon sequestration opportunities and conduct pilot-scale validation tests. The California Energy Commission manages WESTCARB and is a major co-funder. WESTCARB is characterizing the extent and capacity of geologic formations capable of storing CO2, known as sinks. Results are entered into a geographic information system (GIS) database, along with the location of major CO2-emitting point sources in each of the six WESTCARB states, enabling researchers and the public to gauge the proximity of candidate CO2 storage sites to emission sources and the feasibility of linking them via pipelines. Specifically, the WESTCARB GIS database (also known as the carbon atlas) stores layers of geologic information about potential underground storage sites, such as porosity and nearby fault-lines and aquifers. Researchers use these data, along with interpreted geophysical data and available oil and gas well logs to estimate the region's potential geologic storage capacity. The database also depicts existing pipeline routes and rights-of-way and lands that could be off-limits, which can aid the development of a regional carbon management strategy. The WESTCARB Carbon Atlas, which is accessible to the public, provides a resource for public discourse on practical solutions for regional CO2 management. A key WESTCARB partner, the Utah Automated Geographic Reference Center, has developed data serving procedures to enable the WESTCARB Carbon Atlas to be integrated with those from other regional partnerships, thereby supporting the U.S. Department of Energy's national carbon atlas, NATCARB

  3. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Waliser, Duane E.

    Shuttle Main Engine Processing Facility, solid rocket motor test firing, J-2X test firing #12;Providing Heavy-Lift Launch Vehicle NASA's Space Launch System is an advanced, heavy-lift launch vehicle which including near-Earth asteroids, Lagrange points, the moon and ultimately Mars. The SLS heavy-lift launch

  4. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D SFederal8823 RevisionApril 22-23, 2011 ATLAS PAC Meeting

  5. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS Program Advisory Committee

  6. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS Program Advisory

  7. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS Program AdvisoryExperiment

  8. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS Program

  9. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiation Safety at

  10. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiation Safety

  11. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiation Safety2

  12. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiation Safety25

  13. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiation

  14. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS ProgramRadiationFuture

  15. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLAS

  16. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLASExperimentalThe ATLAS User

  17. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLASExperimentalThe ATLAS

  18. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLASExperimentalTheATLAS USERS

  19. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneThe ATLASExperimentalTheATLAS

  20. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneTheRegistered2014 ATLAS User’s

  1. Argonne Physics Division - ATLAS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWithAntiferromagnetic ArgonneTheRegistered2014 ATLAS

  2. NASA Launches Next-Generation Communications Satellite

    E-Print Network [OSTI]

    Christian, Eric

    NASA Launches Next-Generation Communications Satellite Pg 3 Triumph Over Tragedy: Columbia's Last Mission Pg 6 Goddard Day of Remembrance Pg 9 National Aeronautics and Space Administration www.nasa.gov Volume 9 Issue 1 February 2013 #12;T he first of NASA's three next-generation Tracking and Data Relay

  3. Officials launch Carbon Fiber Technology Facility, announce

    E-Print Network [OSTI]

    , who is assistant secretary for Energy Efficiency & Renewable Energy, announced the launch of the Clean Energy Manufacturing Initiative, an effort to bolster U.S. competitiveness in producing clean energy technologies and increasing energy productivity. "Our nation faces a stark choice: The energy technologies

  4. Foreign Fishery Developments Mexico Launches Extensive

    E-Print Network [OSTI]

    Foreign Fishery Developments Mexico Launches Extensive Marine Fisheries Research Program-82 National Fisheries De- velopment Program carried out by the Lopez Portillo Administration, Mexico has added Economica Exclusiva de Mexico (PNPIRPZEE). The new program is without prece- dent in Mexican research, both

  5. Officials launch Carbon Fiber Technology Facility, announce

    E-Print Network [OSTI]

    Pennycook, Steve

    to reduce carbon fiber's high cost, Danielson noted: "Many of these new clean energy technologies are withinSCIENCE Officials launch Carbon Fiber Technology Facility, announce new manufacturing initiative and a large crowd of local business and civic leaders came to the Carbon Fiber Technology Facility (CFTF

  6. DOE Launches Emergency Response Hydrogen Training Resource

    Broader source: Energy.gov [DOE]

    The Energy Department's Fuel Cell Technologies Office announces the launch of a new, free, online national hydrogen safety training resource for emergency responders that provides a single repository of credible and reliable information related to hydrogen and fuel cells that is current and accurate and eliminates duplicative efforts among various training programs.

  7. World launch! Hot-Steam Aerostat

    E-Print Network [OSTI]

    Berlin,Technische Universität

    to the first operable balloon ever that became buoyant by means of superheated steam. The performance of Hei-light and flocked insulation material superheated steam could be maintained also close to the envelopeInfo HeiDAS UH World launch! Hot-Steam Aerostat #12;"If you intend to view the land, if you plan

  8. ATLAS Boosted Object Tagging

    E-Print Network [OSTI]

    Leblanc, Matthew Edgar; The ATLAS collaboration

    2015-01-01

    Tagging boosted top quarks with the ATLAS detector at sqrt(s)=8 TeV and sqrt(s)=13 TeV Different methods to identify high-pT top quarks based on substructure analyses are studied using pp collision data and MC simulations at sqrt(s)=8 TeV. An enriched ttbar sample is used to measure the top selection efficiency in data for substructure-based taggers as well as the HEPTopTagger and Shower Deconstruction algorithms. An enriched QCD sample is used to measure the misidentification rate for these algorithms. In addition, MC simulations at sqrt(s)=13 TeV with 2015 data-taking conditions are used to determine substructure-based taggers and their systematic uncertainties for use by early data analyses. Data/MC comparisons of these variables with early data are also shown. Tagging boosted Higgs bosons with the ATLAS detector at sqrt(s)=8 TeV and sqrt(s)=13 TeV The identification of boosted Higgs bosons decaying to a pair of b-quarks is studied using pp collision data at sqrt(s)=8 TeV and MC simulations at sqrt(s)=8 Te...

  9. CURRENT SCIENCE, VOL. 109, NO. 10, 25 NOVEMBER 2015 1765 Indian Solar Radiation Atlas is launched

    E-Print Network [OSTI]

    Sharma, Shiv K.

    energy sector in the country. NIWE is a research institute under the Ministry of New and Renewable EnergyMap Project facilitated set- ting up the Solar Radiation Measuring Network and later the development, planners of the state solar parks, investors, and financial institutions involved in renew- able energy

  10. BioFuels Atlas (Presentation)

    SciTech Connect (OSTI)

    Moriarty, K.

    2011-02-01

    Presentation for biennial merit review of Biofuels Atlas, a first-pass visualization tool that allows users to explore the potential of biomass-to-biofuels conversions at various locations and scales.

  11. Class Generation for Numerical Wind Atlases

    E-Print Network [OSTI]

    Class Generation for Numerical Wind Atlases Risø National Laboratory Wind Energy Department Constructing a Numerical Wind Atlas 5 2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.4 The existing procedure at Risø . . . . . . . . . . . . . . . . . . . 13 3 Representing a Wind

  12. Consumer Energy Atlas

    SciTech Connect (OSTI)

    Not Available

    1980-06-01

    This first edition of the Atlas provides, in reference form, a central source of information to consumers on key contacts concerned with energy in the US. Energy consumers need information appropriate to local climates and characteristics - best provided by state and local governments. The Department of Energy recognizes the authority of state and local governments to manage energy programs on their own. Therefore, emphasis has been given to government organizations on both the national and state level that influence, formulate, or administer policies affecting energy production, distribution, and use, or that provide information of interest to consumers and non-specialists. In addition, hundreds of non-government energy-related membership organizations, industry trade associations, and energy publications are included.

  13. Quarkonium production at ATLAS

    E-Print Network [OSTI]

    Darren D Price

    2012-01-24

    The production of quarkonium is an important testing ground for QCD calculations. The J/\\psi\\ and \\Upsilon\\ production cross-sections are measured in proton-proton collisions at a centre-of-mass energy of 7~TeV with the ATLAS detector at the LHC. Differential cross-sections are presented as a function of transverse momentum and rapidity. The fraction of J/\\psi\\ produced in B-hadron decays is also measured and the differential cross-sections of prompt and non-prompt J/\\psi\\ production determined separately. Measurements of the fiducial production cross-section of the \\Upsilon(1S) and observation of the \\chi_{c,bJ} states are also discussed.

  14. Analytical modeling of balloon launch dynamics 

    E-Print Network [OSTI]

    Strganac, Thomas W

    1980-01-01

    aerodynam1cs. Actual fl1ght data has been used to qualify the model via comparisons of the launch trans1ent configurations. DEDICATION To my father. . THOMAS JOHN STRGANAC 1922-1980 . . . who provided me the examp1e to fo1Iow in life. ACKNOWLEDGEMENTS... OF TABLES. LIST OF FIGURES NOMENCLATURE. INTRODUCTION. PRESENT STATUS. DYNAMIC MODEL Forces on the Balloon. Buoyancy . Weight Distribution. Catenary . Bubble Aerodynamics, Equations of Motion. Kutta-Simpson Solution Technique NUMERICAL MODEL...

  15. Risk Estimation Methodology for Launch Accidents.

    SciTech Connect (OSTI)

    Clayton, Daniel James; Lipinski, Ronald J.; Bechtel, Ryan D.

    2014-02-01

    As compact and light weight power sources with reliable, long lives, Radioisotope Power Systems (RPSs) have made space missions to explore the solar system possible. Due to the hazardous material that can be released during a launch accident, the potential health risk of an accident must be quantified, so that appropriate launch approval decisions can be made. One part of the risk estimation involves modeling the response of the RPS to potential accident environments. Due to the complexity of modeling the full RPS response deterministically on dynamic variables, the evaluation is performed in a stochastic manner with a Monte Carlo simulation. The potential consequences can be determined by modeling the transport of the hazardous material in the environment and in human biological pathways. The consequence analysis results are summed and weighted by appropriate likelihood values to give a collection of probabilistic results for the estimation of the potential health risk. This information is used to guide RPS designs, spacecraft designs, mission architecture, or launch procedures to potentially reduce the risk, as well as to inform decision makers of the potential health risks resulting from the use of RPSs for space missions.

  16. WORLD OCEAN ATLAS 2013 Product Documentation

    E-Print Network [OSTI]

    WORLD OCEAN ATLAS 2013 Product Documentation Ocean Climate Laboratory NODC / NESDIS / NOAA Silver: World Ocean Atlas 2013 Product Documentation. T. Boyer, Ed.; A. Mishonov, Technical Ed.; 14 pp such as mixed layer depth. Upon publishing Climatological Atlas of the World Ocean in 1982, he distributed

  17. EECBG Success Story: Illinois Town Launches Toilet Rebate Program...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Illinois Town Launches Toilet Rebate Program EECBG Success Story: Illinois Town Launches Toilet Rebate Program June 11, 2010 - 2:23pm Addthis The city of Aurora, Illinois, has...

  18. United States Launches First Grid-Connected Offshore Wind Turbine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    United States Launches First Grid-Connected Offshore Wind Turbine United States Launches First Grid-Connected Offshore Wind Turbine August 22, 2013 - 12:00am Addthis Leveraging an...

  19. EECBG Success Story: St. Louis Launches Plan for More Sustainable...

    Office of Environmental Management (EM)

    Louis Launches Plan for More Sustainable Community EECBG Success Story: St. Louis Launches Plan for More Sustainable Community March 1, 2013 - 1:56pm Addthis Using money from the...

  20. Solar Goes Big: Launching the California Valley Solar Ranch ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solar Goes Big: Launching the California Valley Solar Ranch Solar Goes Big: Launching the California Valley Solar Ranch October 31, 2013 - 4:14pm Addthis The California Valley...

  1. SEP Success Story: Green Launching Pad Taps Six More Companies...

    Energy Savers [EERE]

    Green Launching Pad Taps Six More Companies for Take-off SEP Success Story: Green Launching Pad Taps Six More Companies for Take-off April 29, 2011 - 9:58am Addthis Yesterday, U.S....

  2. Clean Cities Launches Improved Tool to Help Fleets Evaluate CNG...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Clean Cities Launches Improved Tool to Help Fleets Evaluate CNG Investments Clean Cities Launches Improved Tool to Help Fleets Evaluate CNG Investments January 21, 2014 - 12:00am...

  3. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Rathbun, Julie A.

    into the solar system--developing new technologies, inspiring future generations and expanding our knowledge Launch System 70t vehicle launching from Kennedy Space Center. Building America's New Rocket for Deep in the solar system, launching crews of up to four astronauts aboard the new Orion spacecraft to explore

  4. IRENA Renewable Energy Indicators | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoringUtilities CommEnergy,INTA JumpIPMOpen

  5. CleanLaunch | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar EnergyLawler,Coal Technologies Place: FloridaClean EnergyClean andCleanLaunch

  6. SUB-POPULATION BRAIN ATLASES

    E-Print Network [OSTI]

    Thompson, Paul

    SUB-POPULATION BRAIN ATLASES Paul Thompson PhD, Michael S. Mega MD PhD, and Arthur W. Toga PhD Laboratory of Neuro Imaging, Brain Mapping Division and Alzheimer's Disease Center Dept. of Neurology, UCLA School of Medicine, Los Angeles, CA 90095-1769 A Chapter in: Brain Mapping: The Methods (2nd Edition

  7. ATLAS Fast Tracker Simulation Challenges

    E-Print Network [OSTI]

    Adelman, Jahred; The ATLAS collaboration; Borodin, Mikhail; Chakraborty, Dhiman; García Navarro, José Enrique; Golubkov, Dmitry; Kama, Sami; Panitkin, Sergey; Smirnov, Yuri; Stewart, Graeme; Tompkins, Lauren; Vaniachine, Alexandre; Volpi, Guido

    2015-01-01

    To deal with Big Data flood from the ATLAS detector most events have to be rejected in the trigger system. the trigger rejection is complicated by the presence of a large number of minimum-bias events – the pileup. To limit pileup effects in the high luminosity environment of the LHC Run-2, ATLAS relies on full tracking provided by the Fast TracKer (FTK) implemented with custom electronics. The FTK data processing pipeline has to be simulated in preparation for LHC upgrades to support electronics design and develop trigger strategies at high luminosity. The simulation of the FTK - a highly parallelized system - has inherent performance bottlenecks on general-purpose CPUs. To take advantage of the Grid Computing power, the FTK simulation is integrated with Monte Carlo simulations at the Production System level above the ATLAS workload management system PanDA. We report on ATLAS experience with FTK simulations on the Grid and next steps for accommodating the growing requirements for resources during the LHC R...

  8. Driven Wild: How the Fight Against Automobiles Launched the Modern Wilderness Movement

    E-Print Network [OSTI]

    Sowards, Adam M.

    2003-01-01

    Driven Wild: How the Fight Against Automobiles Launched theDriven Wild: How the Fight Against Automobiles Launched the

  9. Evolution of the ATLAS Nightly Build System

    E-Print Network [OSTI]

    Undrus, A

    2012-01-01

    The ATLAS Nightly Build System is a major component in the ATLAS collaborative software organization, validation, and code approval scheme. For over 10 years of development it has evolved into a factory for automatic release production and grid distribution. The 50 multi-platform branches of ATLAS releases provide vast opportunities for testing new packages, verification of patches to existing software, and migration to new platforms and compilers for ATLAS code that currently contains 2200 packages with 4 million C++ and 1.4 million python scripting lines written by about 1000 developers. Recent development was focused on the integration of ATLAS Nightly Builds and Installation systems. The nightly releases are distributed and validated and some are transformed into stable releases used for data processing worldwide. The ATLAS Nightly System is managed by the NICOS control tool on a computing farm with 50 powerful multiprocessor nodes. NICOS provides the fully automated framework for the release builds, test...

  10. ATLAS Inner Detector Event Data Model

    SciTech Connect (OSTI)

    ATLAS; Akesson, F.; Costa, M.J.; Dobos, D.; Elsing, M.; Fleischmann, S.; Gaponenko, A.; Gnanvo, K.; Keener, P.T.; Liebig, W.; Moyse, E.; Salzburger, A.; Siebel, M.; Wildauer, A.

    2007-12-12

    The data model for event reconstruction (EDM) in the Inner Detector of the ATLAS experiment is presented. Different data classes represent evolving stages in the reconstruction data flow, and specific derived classes exist for the sub-detectors. The Inner Detector EDM also extends the data model for common tracking in ATLAS and is integrated into the modular design of the ATLAS high-level trigger and off-line software.

  11. Princeton, Max Planck Society launch new research center for...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the Federal Republic of Germany in New York Busso von Alvensleben meet to sign an agreement launching the new Max Planck Princeton Research Center for Plasma Physics....

  12. SEP Success Story: "Green Launching Pad" Supports Clean Energy...

    Broader source: Energy.gov (indexed) [DOE]

    New Hampshire Photographic Services A commercialization partnership funded by the State Energy Program - known as the Green Launching Pad program -- is a joint effort by the New...

  13. White House Launches the Generation Indigenous Native Youth Challenge...

    Broader source: Energy.gov (indexed) [DOE]

    the White House Domestic Policy Council Cecilia Muoz announced the launch of the Generation Indigenous Native Youth Challenge at the 2015 United National Indian Tribal Youth...

  14. SEP Success Story: Launching Green Entrepreneurship in New Hampshire...

    Office of Environmental Management (EM)

    NH. | Courtesy of University of New Hampshire Photographic Services SEP Success Story: "Green Launching Pad" Supports Clean Energy Small Businesses SEP Success Story: Green...

  15. PARTNERSHIPS INITIATIVES Partnerships Launches New Web Page with...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    INITIATIVES Partnerships Launches New Web Page with Innovative Technology Search Engine The ORNL Partnerships Directorate seeks to foster economic development and the growth of...

  16. Alignment strategy for the ATLAS tracker

    SciTech Connect (OSTI)

    ATLAS; Golling, T.

    2007-09-23

    The ATLAS experiment is a multi-purpose particle detector that will study high-energy particle collisions produced by the Large Hadron Collider. For the reconstruction of charged particles, and their production and their decay vertices, ATLAS is equipped with a sophisticated tracking system, unprecedented in size and complexity. Full exploitation of both the Inner Detector and the muon spectrometer requires an accurate alignment. The challenge of aligning the ATLAS tracking devices is discussed, and the ATLAS alignment strategy is presented and illustrated with both data and Monte Carlo results.

  17. The ATLAS Silicon Pixel Sensors

    E-Print Network [OSTI]

    Alam, M S; Einsweiler, K F; Emes, J; Gilchriese, M G D; Joshi, A; Kleinfelder, S A; Marchesini, R; McCormack, F; Milgrome, O; Palaio, N; Pengg, F; Richardson, J; Zizka, G; Ackers, M; Andreazza, A; Comes, G; Fischer, P; Keil, M; Klasen, V; Kühl, T; Meuser, S; Ockenfels, W; Raith, B; Treis, J; Wermes, N; Gössling, C; Hügging, F G; Wüstenfeld, J; Wunstorf, R; Barberis, D; Beccherle, R; Darbo, G; Gagliardi, G; Gemme, C; Morettini, P; Musico, P; Osculati, B; Parodi, F; Rossi, L; Blanquart, L; Breugnon, P; Calvet, D; Clemens, J-C; Delpierre, P A; Hallewell, G D; Laugier, D; Mouthuy, T; Rozanov, A; Valin, I; Aleppo, M; Caccia, M; Ragusa, F; Troncon, C; Lutz, Gerhard; Richter, R H; Rohe, T; Brandl, A; Gorfine, G; Hoeferkamp, M; Seidel, SC; Boyd, GR; Skubic, P L; Sícho, P; Tomasek, L; Vrba, V; Holder, M; Ziolkowski, M; D'Auria, S; del Papa, C; Charles, E; Fasching, D; Becks, K H; Lenzen, G; Linder, C

    2001-01-01

    Prototype sensors for the ATLAS silicon pixel detector have been developed. The design of the sensors is guided by the need to operate them in the severe LHC radiation environment at up to several hundred volts while maintaining a good signal-to-noise ratio, small cell size, and minimal multiple scattering. The ability to be operated under full bias for electrical characterization prior to the attachment of the readout integrated circuit electronics is also desired.

  18. ATLAS results on top properties

    E-Print Network [OSTI]

    F. Derue

    2014-08-26

    Recent measurements of top quark properties using $t{\\bar t}$ events produced in proton-proton collisions at the Large Hadron Collider with centre of mass energies of 7 and 8 TeV and detected by the ATLAS experiment are presented. These results include top quark mass, the top and anti-top mass difference, the electric charge, the top quark polarization and spin correlation, the $t{\\bar t}$ charge asymmetry and the search for flavour changing neutral currents.

  19. Overview of the Atlas project

    SciTech Connect (OSTI)

    Trainor, R.J.; Ballard, E.O.; Bartsch, R.R. [and others

    1997-09-01

    Atlas is a high energy pulsed power facility under development at Los Alamos National Laboratory to perform high energy-density experiments in support of the Department of Energy`s stockpile stewardship responsibility. Its design is optimized for materials properties and hydrodynamics experiments under extreme conditions. Atlas will be operational in late-1999 and is designed to provide 100 shots per year. The Atlas capacitor bank design consists of a 36-MJ array of 240-kV Marx modules. The system is designed to deliver a peak current of 45--50 MA with a 4--5 {micro}s risetime. The Marx modules are designed to be reconfigured to a 480-kV configuration, if needed, for opening switch development. The bank is resistively damped to limit fault currents and capacitor voltage reversal. The system is configured for very low-inductance operation (total inductance {approximately} 10 nH) to rapidly implode heavy liner loads. An experimental program for testing and certifying prototype components is currently underway. For many applications the Atlas liner will be nominal 70g aluminum cylinder. Using composite inner layers and a variety of interior target designs, a wide variety of experiments in {approximately}cm{sup 3} volumes may be performed. These include shock compression experiments up to {approximately} 3 TPa (30 Mbar), quasi-adiabatic compressions up to 6-fold compression and pressures above 10 TPa, hydrodynamic instability studies in nonlinear and turbulent regimes over multi-cm propagation lengths, experiments with dense plasmas in the so-called high-gamma regime, studies of materials response at very high strains and strain rates, and materials studies in ultrahigh magnetic fields (above 10{sup 3} T).

  20. Home / News / People & Ecosystems NEWS RELEASE: Global Alliance Launched to

    E-Print Network [OSTI]

    Home / News / People & Ecosystems NEWS RELEASE: Global Alliance Launched to Curb Trade in Illegal forestry lacey act united states The Forest Legality Alliance was launched today to support private sector efforts and policies to reduce trade in illegally harvested wood. The Alliance is a global public

  1. Renowned Logistics Expert to Launch Book at TRANSLOG 2012

    E-Print Network [OSTI]

    Hitchcock, Adam P.

    Renowned Logistics Expert to Launch Book at TRANSLOG 2012: Complimentary Copies with Registration Institute of Technology (MIT) Center for Transportation and Logistics will present the Canadian launch of his new book entitled "Logistics Clusters: Delivering Value and Driving Growth" at TRANSLOG 2012. Dr

  2. Fuel Cell Vehicles and Hydrogen in Preparing for market launch

    E-Print Network [OSTI]

    California at Davis, University of

    Fuel Cell Vehicles and Hydrogen in California Preparing for market launch Catherine Dunwoody June 27, 2012 #12;2 A fuel cell vehicle is electric! 2 · 300-400 mile range · Zero-tailpipe emissions · To launch market and build capacity #12;12 H2 stations and vehicle growth #12;13 California Fuel Cell

  3. In Situ Jet Energy Calibration In Atlas Based On

    E-Print Network [OSTI]

    Hupkes, Hermen Jan

    In Situ Jet Energy Calibration In Atlas Based On Z+Jet Events By Hermen Jan Hupkes 252 Ge; IN SITU JET ENERGY CALIBRATION IN ATLAS BASED ON Z+JET EVENTS Hermen Jan Hupkes Mathematisch Instituut #12; #12; Contents 1 Introduction 1 2 The Atlas Detector 7 3 Jet Measurements in Atlas 11 3

  4. In Situ Jet Energy Calibration In Atlas Based On

    E-Print Network [OSTI]

    Hupkes, Hermen Jan

    In Situ Jet Energy Calibration In Atlas Based On Z+Jet Events By Hermen Jan Hupkes 252 Ge SITU JET ENERGY CALIBRATION IN ATLAS BASED ON Z+JET EVENTS Hermen Jan Hupkes Mathematisch Instituut #12;#12;Contents 1 Introduction 1 2 The Atlas Detector 7 3 Jet Measurements in Atlas 11 3

  5. Pixel Sensors for ATLAS Sally Seidel

    E-Print Network [OSTI]

    Seidel, Sally

    Albuquerque, New Mexico 87131, USA for the ATLAS Collaboration 8 May 1998 Abstract The design and fabrication the desire to provide bias to every pixel without attaching the readout integrated circuit. This is expectedPixel Sensors for ATLAS Sally Seidel Department of Physics and Astronomy University of New Mexico

  6. Philippines Wind Energy Resource Atlas Development

    SciTech Connect (OSTI)

    Elliott, D.

    2000-11-29

    This paper describes the creation of a comprehensive wind energy resource atlas for the Philippines. The atlas was created to facilitate the rapid identification of good wind resource areas and understanding of the salient wind characteristics. Detailed wind resource maps were generated for the entire country using an advanced wind mapping technique and innovative assessment methods recently developed at the National Renewable Energy Laboratory.

  7. Renewable Energy Atlas of the United States

    SciTech Connect (OSTI)

    Kuiper, J.; Hlava, K.; Greenwood, H.; Carr, A.

    2013-12-13

    The Renewable Energy Atlas (Atlas) of the United States is a compilation of geospatial data focused on renewable energy resources, federal land ownership, and base map reference information. This report explains how to add the Atlas to your computer and install the associated software. The report also includes: ? A description of each of the components of the Atlas; ? Lists of the Geographic Information System (GIS) database content and sources; and ? A brief introduction to the major renewable energy technologies. The Atlas includes the following: ? A GIS database organized as a set of Environmental Systems Research Institute (ESRI) ArcGIS Personal GeoDatabases, and ? ESRI ArcReader and ArcGIS project files providing an interactive map visualization and analysis interface.

  8. The Next Generation ATLAS Production System

    E-Print Network [OSTI]

    Borodin, Mikhail; The ATLAS collaboration; Golubkov, Dmitry; Klimentov, Alexei; Maeno, Tadashi; Mashinistov, Ruslan; Vaniachine, Alexandre

    2015-01-01

    The ATLAS experiment at LHC data processing and simulation grows continuously, as more data and more use cases emerge. For data processing the ATLAS experiment adopted the data transformation approach, where software applications transform the input data into outputs. In the ATLAS production system, each data transformation is represented by a task, a collection of many jobs, dynamically submitted by the ATLAS workload management system (PanDA/JEDI) and executed on the Grid, clouds and supercomputers. Patterns in ATLAS data transformation workflows composed of many tasks provided a scalable production system framework for template definitions of the many-tasks workflows. User interface and system logic of these workflows are being implemented in the Database Engine for Tasks (DEFT). Such development required using modern computing technologies and approaches. We report technical details of this development: database implementation, server logic and Web user interface technologies.

  9. Study on Alternative Cargo Launch Options from the Lunar Surface

    SciTech Connect (OSTI)

    Cheryl A. Blomberg; Zamir A. Zulkefli; Spencer W. Rich; Steven D. Howe

    2013-07-01

    In the future, there will be a need for constant cargo launches from Earth to Mars in order to build, and then sustain, a Martian base. Currently, chemical rockets are used for space launches. These are expensive and heavy due to the amount of necessary propellant. Nuclear thermal rockets (NTRs) are the next step in rocket design. Another alternative is to create a launcher on the lunar surface that uses magnetic levitation to launch cargo to Mars in order to minimize the amount of necessary propellant per mission. This paper investigates using nuclear power for six different cargo launching alternatives, as well as the orbital mechanics involved in launching cargo to a Martian base from the moon. Each alternative is compared to the other alternative launchers, as well as compared to using an NTR instead. This comparison is done on the basis of mass that must be shipped from Earth, the amount of necessary propellant, and the number of equivalent NTR launches. Of the options, a lunar coil launcher had a ship mass that is 12.7% less than the next best option and 17 NTR equivalent launches, making it the best of the presented six options.

  10. Carbon Storage Atlas - Fifth Edition (Atlas V) (2015)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from thecarbon captureCarbon Storage Atlas - Fifth

  11. Early Top Physics with ATLAS

    E-Print Network [OSTI]

    J. Schieck

    2009-01-12

    The ATLAS detector is one of the two multi-purpose experiments located at the Large Hadron Collider (LHC) at CERN and is expected to collect first collision data in summer 2009. Due to the large top-quark production cross-section the LHC will function as a top-quark factory allowing to measure top-quark properties even at initial luminosities. We present some recently-performed studies, focussing on measurements of the top pair and single top production cross-sections with the first fb-1 of data. The potential for the measurement of other top-quark properties like the mass will be also briefly discussed.

  12. ATLAS 25th Anniversary Celebration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow,ARM: ThreeATHENA could reduce ATLAS th

  13. ATLAS Science and Technology Review

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow,ARM: ThreeATHENA could reduce ATLAS thth

  14. MHK Atlas | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation, search Name: Lyon-Lincoln Electric CoopMAPSAMHK Atlas

  15. Modeling dispersions in initial conditions for air-launched rockets and their effect on vehicle performance

    E-Print Network [OSTI]

    Beerer, Ingrid Mary

    2013-01-01

    Growing interest in air-launched rockets as a method for lofting satellites into orbit motivates the need to investigate the unique challenges that air launch presents. This thesis explores how uncertainties in an air-launched ...

  16. GE launches 'STEM empowers OK' initiative in Oklahoma City |...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    GE, OCAST and OSSM Partner to Launch "STEM Empowers OK" Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new...

  17. DOE Launches the Advanced Research Projects Agency-Energy, or...

    Broader source: Energy.gov (indexed) [DOE]

    President Barack Obama announced the launch of the Advanced Research Projects Agency-Energy (ARPA-E) on April 27 as part of a sweeping announcement about federal investment in...

  18. Designing a flexible supply chain for new product launch

    E-Print Network [OSTI]

    Ha, Wei-Kwan Benjamin

    2005-01-01

    This thesis examines how companies tactically design flexible supply chains for new product launches. The research focus is on different strategies and tactics used by original equipment manufacturers to improve supply ...

  19. EFRCs Launched | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications History Contact BES Home 08.06.09 EFRCs Launched Print Text Size: A A A Subscribe...

  20. Departments of Energy and Defense Launch ENERGY STAR® Operation...

    Broader source: Energy.gov (indexed) [DOE]

    CAMP LEJEUNE, NC - U.S. Secretary of Energy Samuel W. Bodman on Earth Day launched a joint Department of Energy (DOE) and Defense campaign to challenge military bases nationwide to...

  1. Energy Department Launches SunShot Prize Competition to Install...

    Office of Environmental Management (EM)

    SunShot Prize Competition to Install Solar Energy Systems at a Fraction of Today's Price Energy Department Launches SunShot Prize Competition to Install Solar Energy Systems at a...

  2. Caribbean LNG project marks progress; LNG tanker launched

    SciTech Connect (OSTI)

    1997-10-20

    World LNG trade continues to expand as construction of a major LNG project in the Caribbean hits full stride this fall and another LNG carrier was launched earlier this year. Engineering is nearly complete and construction is nearing midway on Trinidad`s Atlantic LNG. In Japan, NKK Corp. launched another LNG tanker that employs the membrane-storage system. The 50-mile pipeline to move natural gas to the Atlantic LNG facility is also on track for completion by October 1998.

  3. National Training Center (NTC) Launches a New DOE-Wide Voluntary...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    National Training Center (NTC) Launches a New DOE-Wide Voluntary Training Reciprocity and Collaboration Initiative National Training Center (NTC) Launches a New DOE-Wide Voluntary...

  4. Experience with C++ Code Quality in ATLAS

    E-Print Network [OSTI]

    Roe, Shaun; The ATLAS collaboration; Snyder, Scott; Martin-Haugh, Stewart; Obreshkov, Emil; Stewart, Graeme

    2015-01-01

    An explanation of tools used for code quality checking in Atlas offline software, including results and responses is given. The principle tools covered are: Coverity, cppcheck, 'include what you use', Undefined Behaviour Sanitizer

  5. The High Resolution IRAS Galaxy Atlas

    E-Print Network [OSTI]

    Yu Cao; Susan Terebey; Thomas A. Prince; Charles A. Beichman

    1997-06-02

    An atlas of the Galactic plane (-4.7 deg < b < 4.7 deg) plus the molecular clouds in Orion, Rho Oph, and Taurus-Auriga has been produced at 60 and 100 micron from IRAS data. The Atlas consists of resolution-enhanced coadded images having 1 arcmin -- 2 arcmin resolution as well as coadded images at the native IRAS resolution. The IRAS Galaxy Atlas, together with the DRAO HI line / 21 cm continuum and FCRAO CO (1-0) line Galactic plane surveys, both with similar (approx. 1 arcmin) resolution, provide a powerful venue for studying the interstellar medium, star formation and large scale structure in our Galaxy. This paper documents the production and characteristics of the Atlas.

  6. The Global Solar and Wind Atlas: a unique Global Spatial Data Infrastructure for all renewable energy

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    @masdar.ac.ae Nicolas Fichaux International Renewable Energy Agency - IRENA Abu Dhabi United Arab Emirates NFichaux in the field of solar and wind energy. The initiative will be expanded to encompass all renewable energies by 2015, and will be the largest information source on renewable energy potentials ever created. It has

  7. SIMULATING PROTOSTELLAR JETS SIMULTANEOUSLY AT LAUNCHING AND OBSERVATIONAL SCALES

    SciTech Connect (OSTI)

    Ramsey, Jon P.; Clarke, David A. [Institute for Computational Astrophysics, Department of Astronomy and Physics, Saint Mary's University, Halifax, Nova Scotia B3H 3C3 (Canada)

    2011-02-10

    We present the first 2.5-dimensional magnetohydrodynamic (MHD) simulations of protostellar jets that include both the region in which the jet is launched magnetocentrifugally at scale lengths <0.1 AU and where the propagating jet is observed at scale lengths >10{sup 3} AU. These simulations, performed with the new adaptive mesh refinement MHD code AZEuS, reveal interesting relationships between conditions at the disk surface, such as the magnetic field strength, and direct observables such as proper motion, jet rotation, jet radius, and mass flux. By comparing these quantities with observed values, we present direct numerical evidence that the magnetocentrifugal launching mechanism is capable, by itself, of launching realistic protostellar jets.

  8. WIND ATLAS FOR EGYPT: MEASUREMENTS, MICRO-AND MESOSCALE MODELLING

    E-Print Network [OSTI]

    WIND ATLAS FOR EGYPT: MEASUREMENTS, MICRO- AND MESOSCALE MODELLING Niels G. Mortensen1 , Jens atlas based on long-term reanalysis data and a mesoscale model (KAMM). The mean absolute error comparing atlas based on long-term reanalysis data and a mesoscale model, KAMM. The observations have been

  9. ATLAS ATLAS ATLAS ATLAS

    E-Print Network [OSTI]

    Gan, K. K.

    Silicon lid v­groove for fibre alignment 45 0 cut for light reflection passive alignment features ffl Silicon carrier cut outs for silicon tiles passive alignment features ffl Silicon tiles alignment marks encouragement, modifications ffl produce a few working packages in­house in the next few weeks ffl investigate

  10. Radiation Damage Monitoring in the ATLAS Pixel Detector1 Sally Seidel, on behalf of the ATLAS Collaborationa,

    E-Print Network [OSTI]

    Seidel, Sally

    Radiation Damage Monitoring in the ATLAS Pixel Detector1 Sally Seidel, on behalf of the ATLAS; radiation damage; silicon10 1. Introduction11 The innermost detection system of the ATLAS Detector [1 to respond to these changes, the radiation damage sustained by detector22 elements must be monitored.23

  11. ATLAS Distributed Data Analysis: challenges and performance

    E-Print Network [OSTI]

    Fassi, Farida; The ATLAS collaboration

    2015-01-01

    In the LHC operations era the key goal is to analyse the results of the collisions of high-energy particles as a way of probing the fundamental forces of nature. The ATLAS experiment at the LHC at CERN is recording and simulating several 10's of PetaBytes of data per year. The ATLAS Computing Model was designed around the concepts of Grid Computing. Large data volumes from the detectors and simulations require a large number of CPUs and storage space for data processing. To cope with this challenge a global network known as the Worldwide LHC Computing Grid (WLCG) was built. This is the most sophisticated data taking and analysis system ever built. ATLAS accumulated more than 140 PB of data between 2009 and 2014. To analyse these data ATLAS developed, deployed and now operates a mature and stable distributed analysis (DA) service on the WLCG. The service is actively used: more than half a million user jobs run daily on DA resources, submitted by more than 1500 ATLAS physicists. A significant reliability of the...

  12. ATLAS Distributed Data Analysis: performance and challenges

    E-Print Network [OSTI]

    Fassi, Farida; The ATLAS collaboration

    2015-01-01

    In the LHC operations era the key goal is to analyse the results of the collisions of high-energy particles as a way of probing the fundamental forces of nature. The ATLAS experiment at the LHC at CERN is recording and simulating several 10's of PetaBytes of data per year. The ATLAS Computing Model was designed around the concepts of Grid Computing. Large data volumes from the detectors and simulations require a large number of CPUs and storage space for data processing. To cope with this challenge a global network known as the Worldwide LHC Computing Grid (WLCG) was built. This is the most sophisticated data taking and analysis system ever built. ATLAS accumulated more than 140 PB of data between 2009 and 2014. To analyse these data ATLAS developed, deployed and now operates a mature and stable distributed analysis (DA) service on the WLCG. The service is actively used: more than half a million user jobs run daily on DA resources, submitted by more than 1500 ATLAS physicists. A significant reliability of the...

  13. Renewable energy atlas of the United States.

    SciTech Connect (OSTI)

    Kuiper, J.A.; Hlava, K.Greenwood, H.; Carr, A.

    2012-05-01

    The Renewable Energy Atlas (Atlas) of the United States is a compilation of geospatial data focused on renewable energy resources, federal land ownership, and base map reference information. It is designed for the U.S. Department of Agriculture Forest Service (USFS) and other federal land management agencies to evaluate existing and proposed renewable energy projects. Much of the content of the Atlas was compiled at Argonne National Laboratory (Argonne) to support recent and current energy-related Environmental Impact Statements and studies, including the following projects: (1) West-wide Energy Corridor Programmatic Environmental Impact Statement (PEIS) (BLM 2008); (2) Draft PEIS for Solar Energy Development in Six Southwestern States (DOE/BLM 2010); (3) Supplement to the Draft PEIS for Solar Energy Development in Six Southwestern States (DOE/BLM 2011); (4) Upper Great Plains Wind Energy PEIS (WAPA/USFWS 2012, in progress); and (5) Energy Transport Corridors: The Potential Role of Federal Lands in States Identified by the Energy Policy Act of 2005, Section 368(b) (in progress). This report explains how to add the Atlas to your computer and install the associated software; describes each of the components of the Atlas; lists the Geographic Information System (GIS) database content and sources; and provides a brief introduction to the major renewable energy technologies.

  14. http://launch.cs.ualberta.ca Department of Computing Science

    E-Print Network [OSTI]

    Machel, Hans

    http://launch.cs.ualberta.ca Department of Computing Science 2-32 Athabasca Hall University of Computing Science at the University of Alberta offers students the chance to explore their passion having personalized attention from their camp instructors. All Computing Science Summer Camps run from 9

  15. National Aeronautics and Space Administration Space Launch System

    E-Print Network [OSTI]

    Waliser, Duane E.

    engine. #12;The B-2 test stand at NASA's Stennis Space Center in Mississippi--originally built to test cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle's RS-25 engines. SLS is an advanced, heavy-lift launch vehicle that will provide an entirely new capability for science and human exploration

  16. No. 445 March 2015NEWSLETTER LMS 150TH ANNIVERSARY LAUNCH

    E-Print Network [OSTI]

    Abrahams, I. David

    No. 445 March 2015NEWSLETTER LMS 150TH ANNIVERSARY LAUNCH EMS Presidential Toast SOCIETY MEETINGS AND EVENTS · 16-20March:LMSInvitedLectures, MichaelShapiro(MSU),Durham · Wednesday1April:LMS150th-17April:WomeninMathsEvent,Oxford page 12 · Saturday9May:LMS-BSHMDeMorganDay,London page 5 · Friday3July

  17. NASA, Orbital Launch Antares Rocket Hearing a Speck of Dirt

    E-Print Network [OSTI]

    Christian, Eric

    NASA, Orbital Launch Antares Rocket Pg 3 Hearing a Speck of Dirt Pg 4 Experiment Examining a SLICE of the Interstellar Medium Pg 9 National Aeronautics and Space Administration www.nasa.gov Volume 9 Issue 5 May 2013. "Today's successful test marks another significant milestone in NASA's plan to rely on American companies

  18. LAUNCH A PARTNERSHIP WITH UofT ENGINEERING

    E-Print Network [OSTI]

    Toronto, University of

    LAUNCH A PARTNERSHIP WITH UofT ENGINEERING TODAY U of T Engineering is partnering with industry of T Engineering delivers solutions to help you succeed. We have a strong track record -- of success OF THE VICE-DEAN, RESEARCH FACULTY OF APPLIED SCIENCE & ENGINEERING UNIVERSITY OF TORONTO 416-946-3038 | vdr

  19. Idaho Site Launches Corrective Actions Before Restarting Waste Treatment Facility

    Broader source: Energy.gov [DOE]

    IDAHO FALLS, Idaho – The Idaho site and its cleanup contractor have launched a series of corrective actions they will complete before safely resuming startup operations at the Integrated Waste Treatment Unit (IWTU) following an incident in June that caused the new waste treatment facility to shut down.

  20. Executive Summary of Initiative Launching a Re-envisioning Initiative

    E-Print Network [OSTI]

    California at Berkeley, University of

    these public services 1 Message from the University Librarian about the SEL Chemistry Closure, http://blogs.library1 Executive Summary of Initiative Launching a Re-envisioning Initiative The UC Berkeley Library has embarked upon a process to re-envision library services that will result in a new service model

  1. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Rathbun, Julie A.

    into the solar system ­ finding potential resources, develop- ing new technologies, and discovering answersNational Aeronautics and Space Administration NASAfacts space launch system Building America's Next to reach further into our solar system. However, if needed, SLS will support backup trans- portation

  2. NASA Launches ATREX Space Network to Begin New Design Phase

    E-Print Network [OSTI]

    Christian, Eric

    Design Phase - 8 Dual Frequency Radar Arrives at Goddard - 9 Goddard Community Visitor Center Hosts TitanNASA Launches ATREX Pg 3 Space Network to Begin New Design Phase Pg 8 Visitor Center Hosts Titan://www.nasa.gov/centers/goddard/news/goddard-view.html Managing Editor: Trusilla Steele Editor: John M. Putman News items for publication in Goddard View must

  3. The Evolution of Cloud Computing in ATLAS

    E-Print Network [OSTI]

    Taylor, Ryan P; The ATLAS collaboration; Brasolin, Franco; Cordeiro, Cristovao; Desmarais, Ron; Field, Laurence; Gable, Ian; Giordano, Domenico; Di Girolamo, Alessandro; Hover, John; Leblanc, Matthew Edgar; Love, Peter; Paterson, Michael; Sobie, Randall; Zaytsev, Alexandr

    2015-01-01

    The ATLAS experiment has successfully incorporated cloud computing technology and cloud resources into its primarily grid-based model of distributed computing. Cloud R&D activities continue to mature and transition into stable production systems, while ongoing evolutionary changes are still needed to adapt and refine the approaches used, in response to changes in prevailing cloud technology. In addition, completely new developments are needed to handle emerging requirements. This paper describes the overall evolution of cloud computing in ATLAS. The current status of the virtual machine (VM) management systems used for harnessing infrastructure as a service (IaaS) resources are discussed. Monitoring and accounting systems tailored for clouds are needed to complete the integration of cloud resources within ATLAS' distributed computing framework. We are developing and deploying new solutions to address the challenge of operation in a geographically distributed multi-cloud scenario, including a system for ma...

  4. The Evolution of Cloud Computing in ATLAS

    E-Print Network [OSTI]

    Taylor, Ryan P.; The ATLAS collaboration; Love, Peter; Leblanc, Matthew Edgar; Di Girolamo, Alessandro; Paterson, Michael; Gable, Ian; Sobie, Randall; Field, Laurence

    2015-01-01

    The ATLAS experiment has successfully incorporated cloud computing technology and cloud resources into its primarily grid-based model of distributed computing. Cloud R&D activities continue to mature and transition into stable production systems, while ongoing evolutionary changes are still needed to adapt and refine the approaches used, in response to changes in prevailing cloud technology. In addition, completely new developments are needed to handle emerging requirements. This work will describe the overall evolution of cloud computing in ATLAS. The current status of the VM management systems used for harnessing IAAS resources will be discussed. Monitoring and accounting systems tailored for clouds are needed to complete the integration of cloud resources within ATLAS' distributed computing framework. We are developing and deploying new solutions to address the challenge of operation in a geographically distributed multi-cloud scenario, including a system for managing VM images across multiple clouds, ...

  5. Triggering events with GPU at ATLAS

    E-Print Network [OSTI]

    Kama, Sami; The ATLAS collaboration

    2015-01-01

    The growing complexity of events produced in LHC collisions demands more and more computing power both for the on line selection and for the offline reconstruction of events. In recent years, the explosive performance growth of massively parallel processors like Graphical Processing Units both in computing power and in low energy consumption, make GPU extremely attractive for using them in a complex high energy experiment like ATLAS. Together with the optimization of reconstruction algorithms exploiting this new massively parallel paradigm, a small scale prototype of the full ATLAS High Level Trigger exploiting GPU has been implemented. We discuss the integration procedure of this prototype, the achieved performance and the prospects for the future.

  6. Atlas of major Appalachian basin gas plays

    SciTech Connect (OSTI)

    Aminian, K.; Avary, K.L.; Baranoski, M.T.; Flaherty, K.; Humphreys, M.; Smosna, R.A.

    1995-06-01

    This regional study of gas reservoirs in the Appalachian basin has four main objectives: to organize all of the -as reservoirs in the Appalachian basin into unique plays based on common age, lithology, trap type and other geologic similarities; to write, illustrate and publish an atlas of major gas plays; to prepare and submit a digital data base of geologic, engineering and reservoir parameters for each gas field; and technology transfer to the oil and gas industry during the preparation of the atlas and data base.

  7. United States Atlas of Renewable Resources

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Atlas is an interactive application of the renewable energy resources in the contiguous United States, Alaska and Hawaii. It illustrates the geographic distribution of wind, solar, geothermal, and biomass resources, as well as other pertinent information such as transportation network and administrative boundaries.[Copied from http://www.nrel.gov/gis/maps.html

  8. ATLAS e-News 1 November 2010

    E-Print Network [OSTI]

    Dettweiler, Michael

    the outside', even your close family and friends, what it means to be a working particle physicist ­ what of science education, scientific research, policy-making and curriculum development. The new initiative collaborations. Over the next three years, Learning with ATLAS@CERN will instigate a gearshift by actually

  9. DOE Launches High-Tech Research Buoys to Advance U.S. Offshore...

    Energy Savers [EERE]

    DOE Launches High-Tech Research Buoys to Advance U.S. Offshore Wind Development DOE Launches High-Tech Research Buoys to Advance U.S. Offshore Wind Development May 18, 2015 -...

  10. Designing sustainable heavy lift launch vehicle architectures adaptability, lock-in, and system evolution

    E-Print Network [OSTI]

    Silver, Matthew Robin

    2005-01-01

    Long term human space exploration depends on the development of a sustainable heavy lift launch vehicle (HLLV). But what exactly is sustainability in the context of launch systems and how can it addressed in the design ...

  11. U-Launch Winner Secures $2.4M Investment for Building Energy...

    Office of Environmental Management (EM)

    U-Launch Winner Secures 2.4M Investment for Building Energy Performance Software U-Launch Winner Secures 2.4M Investment for Building Energy Performance Software December 14,...

  12. Federal Energy Management Program Launches New Training Series

    Office of Energy Efficiency and Renewable Energy (EERE)

    With a footprint that includes 350,000 buildings, 600,000 fleet vehicles, and $445 billion spent annually on goods and services, the federal government’s actions to reduce pollution, support renewable energy and operate more efficiently can make a significant impact on national emissions. That's part of the overall goal of a new certificate training series from the Energy Department's Federal Energy Management Program (FEMP) being launched to help with education, workforce development and cut energy use in the public and private sectors.

  13. Energy Department Launches Alternative Fueling Station Locator App |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 Infographic courtesy ofDepartment ofDepartment of Energy Launches

  14. Sandia Energy - Launch of Solar Testing Site in Vermont

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &Water Power ProgramLarge EddyAvailable forLaunch of

  15. Launch of the Grid Modernization Laboratory Consortium | Department of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and- EnergyNews » LatestEnergy Launch of

  16. Launching STEM Careers through Exposure and Exploration | Department of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and- EnergyNews » LatestEnergy Launch

  17. Triggering events with GPUs at ATLAS

    E-Print Network [OSTI]

    Kama, Sami; The ATLAS collaboration

    2015-01-01

    The growing complexity of events produced in LHC collisions demands more and more computing power both for the online selection and for the offline reconstruction of events. In recent years, the explosive performance growth of massively parallel processors like Graphics Processing Units~(GPU) both in computing power and in low energy consumption, make GPU extremely attractive for using them in a complex high energy experiment like ATLAS. Together with the optimization of reconstruction algorithms this new massively parallel paradigm is exploited. For this purpose a small scale prototype of the full ATLAS High Level Trigger involving GPU has been implemented. We discuss the integration procedure of this prototype, the achieved performance and the prospects for the future

  18. ATLAS Distributed Computing in LHC Run2

    E-Print Network [OSTI]

    Campana, Simone; The ATLAS collaboration

    2015-01-01

    The ATLAS Distributed Computing infrastructure has evolved after the first period of LHC data taking in order to cope with the challenges of the upcoming LHC Run2. An increased data rate and computing demands of the Monte-Carlo simulation, as well as new approaches to ATLAS analysis, dictated a more dynamic workload management system (ProdSys2) and data management system (Rucio), overcoming the boundaries imposed by the design of the old computing model. In particular, the commissioning of new central computing system components was the core part of the migration toward the flexible computing model. The flexible computing utilization exploring the opportunistic resources such as HPC, cloud, and volunteer computing is embedded in the new computing model, the data access mechanisms have been enhanced with the remote access, and the network topology and performance is deeply integrated into the core of the system. Moreover a new data management strategy, based on defined lifetime for each dataset, has been defin...

  19. The ATLAS Data Management Software Engineering Process

    E-Print Network [OSTI]

    Lassnig, M; The ATLAS collaboration; Stewart, G A; Barisits, M; Beermann, T; Vigne, R; Serfon, C; Goossens, L; Nairz, A; Molfetas, A

    2014-01-01

    Rucio is the next-generation data management system of the ATLAS experiment. The software engineering process to develop Rucio is fundamentally different to existing software development approaches in the ATLAS distributed computing community. Based on a conceptual design document, development takes place using peer-reviewed code in a test-driven environment. The main objectives are to ensure that every engineer understands the details of the full project, even components usually not touched by them, that the design and architecture are coherent, that temporary contributors can be productive without delay, that programming mistakes are prevented before being committed to the source code, and that the source is always in a fully functioning state. This contribution will illustrate the workflows and products used, and demonstrate the typical development cycle of a component from inception to deployment within this software engineering process. Next to the technological advantages, this contribution will also hi...

  20. The ATLAS Data Management Software Engineering Process

    E-Print Network [OSTI]

    Lassnig, M; The ATLAS collaboration; Stewart, G A; Barisits, M; Beermann, T; Vigne, R; Serfon, C; Goossens, L; Nairz, A

    2013-01-01

    Rucio is the next-generation data management system of the ATLAS experiment. The software engineering process to develop Rucio is fundamentally different to existing software development approaches in the ATLAS distributed computing community. Based on a conceptual design document, development takes place using peer-reviewed code in a test-driven environment. The main objectives are to ensure that every engineer understands the details of the full project, even components usually not touched by them, that the design and architecture are coherent, that temporary contributors can be productive without delay, that programming mistakes are prevented before being committed to the source code, and that the source is always in a fully functioning state. This contribution will illustrate the workflows and products used, and demonstrate the typical development cycle of a component from inception to deployment within this software engineering process. Next to the technological advantages, this contribution will also hi...

  1. Optimizing the ATLAS code with different profilers

    E-Print Network [OSTI]

    Kama, S; The ATLAS collaboration

    2013-01-01

    After the current maintenance period, the LHC will provide higher energy collisions with increased luminosity. In order to keep up with these higher rates, ATLAS software needs to speed up substantially. However, ATLAS code is composed of approximately 4M lines, written by many different programmers with different backgrounds, which makes code optimisation a challenge. To help with this effort different profiling tools and techniques are being used. These include well known tools, such as the Valgrind suite and Intel Amplifier; less common tools like PIN, PAPI, and GOODA; as well as techniques such as library interposing. In this talk we will mainly focus on PIN tools and GOODA. PIN is a dynamic binary instrumentation tool which can obtain statistics such as call counts, instruction counts and interrogate functions' arguments. It has been used to obtain CLHEP Matrix profiles, operations and vector sizes for linear algebra calculations which has provided the insight necessary to achieve significant performance...

  2. Overview of ATLAS Standard Model Measurements

    E-Print Network [OSTI]

    Buttinger, William; The ATLAS collaboration

    2015-01-01

    The precise measurement of known Standard Model processes is an important part of the ATLAS physics programme. A wide spectrum of final states is covered ranging from the measurement of the total proton-proton cross section down to very rare processes like the production of same-sign W pairs. These measurements serve to constrain phenomenological models of the strong interaction, provide precision tests of perturbative QCD calculations up to the next-to-next-to-leading order, improve our knowledge on the proton structure, measure fundamental Standard Model parameters to high precision or test the Electroweak gauge structure, providing model-independent constraints on new physics. Recent highlights of Run-1 measurements are reported, including new results on multi-differential jet and photon production, precision measurements with single W and Z bosons and multiboson production. The ATLAS Standard model group is also committed to perform several measurements with the data collected in the early Run 2 of the LH...

  3. The ATLAS Data Quality Defect Database System

    E-Print Network [OSTI]

    T. Golling; H. S. Hayward; P. U. E. Onyisi; H. J. Stelzer; P. Waller

    2012-05-14

    The ATLAS experiment at the Large Hadron Collider has implemented a new system for recording information on detector status and data quality, and for transmitting this information to users performing physics analysis. This system revolves around the concept of "defects," which are well-defined, fine-grained, unambiguous occurrences affecting the quality of recorded data. The motivation, implementation, and operation of this system is described.

  4. Review of the ATLAS Forward Measurements

    E-Print Network [OSTI]

    Gach, Grzegorz Pawel; The ATLAS collaboration

    2015-01-01

    A review of ATLAS forward measurements to be presented at Workshop on Forward Physics and High-Energy Scattering at ZERO Degrees in Nagoya. The following analyses are discussed: - Measurement of the Inelastic Proton-Proton Cross Section at 7 and 13 TeV - Rapidity Gap Cross Sections - Measurements of Jet Vetoes and Azimuthal Decorrelations in Dijet Events Produced - Dijet Production in 7 TeV pp Collisions with Large Rapidity Gaps

  5. Recent Higgs results from the ATLAS experiment

    SciTech Connect (OSTI)

    Brendlinger, Kurt; Collaboration: ATLAS Collaboration

    2014-06-24

    This paper presents recent results on the Higgs boson from the ATLAS experiment at the Large Hadron Collider. The Collaboration reports on measurements of the signal strength, couplings, and spin of the Higgs in several decay channels. We find all measurements to be consistent with Standard Model predictions. The Higgs branching fraction to invisible particles is constrained and no evidence of physics beyond the Standard Model is found.

  6. Optical Link of the Atlas Pixel Detector

    E-Print Network [OSTI]

    K. K. Gan

    2007-12-06

    The on-detector optical link of the ATLAS pixel detector contains radiation-hard receiver chips to decode bi-phase marked signals received on PIN arrays and data transmitter chips to drive VCSEL arrays. The components are mounted on hybrid boards (opto-boards). We present results from the irradiation studies with 24 GeV protons up to 32 Mrad (1.2 x 10^15 p/cm^2) and the experience from the production.

  7. Template:AtlasTabs | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013) | Open Energy InformationEnergyAtlasTabs Jump to:

  8. TOWARDS A NATIONAL ATLAS -GEO WEB SERVICE Bormy Chanthong (Royal University of Phnom Penh)

    E-Print Network [OSTI]

    Köbben, Barend

    TOWARDS A NATIONAL ATLAS - GEO WEB SERVICE Bormy Chanthong (Royal University of Phnom Penh) Drs. B is to formulate and design a conceptual model of the National Atlas - Geo Web service. The National Atlas - Geo Web service is designed as a loosely coupled system. As an interoperable node, the National Atlas

  9. RisR1252(EN) The Numerical Wind Atlas

    E-Print Network [OSTI]

    Risø­R­1252(EN) The Numerical Wind Atlas -- the KAMM/WAsP Method Helmut P. Frank, Ole Rathmann The method of combining the Karlsruhe Atmospheric Mesoscale Model, KAMM, with the Wind Atlas Analysis and Application Program, WAsP, to make local predictions of the wind resource is presented. It combines

  10. Quo Vadis, Atlas-Based Segmentation? Torsten Rohlfing1

    E-Print Network [OSTI]

    Menzel, Randolf - Institut für Biologie

    ¨at Berlin, Berlin, Germany 4 Department of Neurosurgery and Computer Science Department, Stanford University in J. Suri, D. L. Wilson, and S. Laxminarayan (eds.), The Handbook of Medical Image Analysis to Atlas: Image Acquisition and Processing . . . . . . . 3 11.3 Fundamentals of Atlas-Based Segmentation

  11. IRENA Renewable Energy Learning Partnership (IRELP) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on Openei | Open Energy2010) |OutlookINDEX

  12. International Renewable Energy Agency (IRENA) Feed | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on OpeneiAlbanian CentreHoldingsFund forGreenInformation

  13. Neurogenomics and the Allen Brain Atlas

    E-Print Network [OSTI]

    Boguski, Mark S.

    " coined by T. Roderick ­ Gene + Chromosome + "ics" = Genomics · 1990 Human Genome Project launched · 1998 Human Genome Project accelerated · 2000 "Draft" sequence available in June · 2001 Historic of the genome project Lessons Promises S. Tilghman, Genome Res. 6:773, 1996 #12;Lessons learned, promises kept

  14. U.S. and New Zealand Take Steps to Launch International Partnership...

    Office of Environmental Management (EM)

    first EDIN Steering Committee meeting, which will take place in late August. State of Hawaii Governor Linda Lingle also attended the EDIN launch and praised the partnership,...

  15. The Office of High Energy Physics Announces the Launch of Its...

    Office of Science (SC) Website

    News & Resources News Archives 2013 The Office of High Energy Physics Announces the Launch of Its New Accelerator R&D Stewardship Webpages High Energy Physics (HEP) HEP...

  16. Webinar: DOE Launches JOBS and Economic Impacts of Fuel Cells (JOBS FC) Analysis Model

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, DOE Launches JOBS and Economic Impacts of Fuel Cells (JOBS FC) Analysis Model, originally presented on May 22, 2012.

  17. ATLAS Run-2 status and performance

    E-Print Network [OSTI]

    Pastore, Francesca; The ATLAS collaboration

    2015-01-01

    During the 2013/2014 shutdown of the LHC the ATLAS detector has been improved. A new silicon pixel detector layer has been installed, and the muon detector coverage has been improved substantially. In addition nearly all other parts of the detector have also been revised to adapt them to the higher pileup conditions or make them more robust in general. This talk will describe these improvements, and how they affect the performance of physics objects. The initial results showing the detector performance as obtained from cosmic runs and/or initial beam data will also be shown.

  18. Astrophysics experiments with radioactive beams at ATLAS

    SciTech Connect (OSTI)

    Back, B. B.; Clark, J. A.; Pardo, R. C.; Rehm, K. E., E-mail: rehm@anl.gov; Savard, G. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)] [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)

    2014-04-15

    Reactions involving short-lived nuclei play an important role in nuclear astrophysics, especially in explosive scenarios which occur in novae, supernovae or X-ray bursts. This article describes the nuclear astrophysics program with radioactive ion beams at the ATLAS accelerator at Argonne National Laboratory. The CARIBU facility as well as recent improvements for the in-flight technique are discussed. New detectors which are important for studies of the rapid proton or the rapid neutron-capture processes are described. At the end we briefly mention plans for future upgrades to enhance the intensity, purity and the range of in-flight and CARIBU beams.

  19. ATLAS measurements of multi-boson production

    E-Print Network [OSTI]

    Christopher Hays; for the ATLAS Collaboration

    2014-10-17

    Measurements of electroweak gauge-boson pair-production in sqrt(s) = 7 and 8 TeV pp collisions at the LHC probe self-couplings and interference effects to an accuracy of O(10%) or better. ATLAS measurements of ZZ and WZ production at both center of mass energies, and of WW, Zgamma and Wgamma production at sqrt(s) = 7 TeV, are presented. Total, fiducial, and differential cross sections are given, along with limits on anomalous triple-gauge couplings.

  20. ATLAS upgrade June09_v3

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden Documentation DataStreamsTotalproposals duenationalMeeting - June 4-5,ATLAS

  1. Global Atlas | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEniaElectric JumpAtlas for Solar and Wind Energy Jump

  2. The European Solar Radiation Atlas 1 Page J., M. Albuisson, L. Wald, 2001. The European solar radiation atlas: a valuable digital tool. Solar Energy,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : solar water heaters, passive solar buildings, photovoltaic cells and biomass production. In each caseThe European Solar Radiation Atlas 1 Page J., M. Albuisson, L. Wald, 2001. The European solar radiation atlas: a valuable digital tool. Solar Energy, 71, 81-83, 2001.1 The European Solar Radiation Atlas

  3. The ATLAS Experiment: Getting Ready for the LHC

    SciTech Connect (OSTI)

    Jenni, Peter (CERN) [CERN

    2006-05-15

    At CERN the Large Hadron Collider (LHC) project is well advanced. First proton-proton collisions at the high-energy frontier are expected for the second half of 2007. In parallel to the collider construction the powerful general-purpose ATLAS detector is being assembled in its underground cavern by a world-wide collaboration. ATLAS will explore new domains of particle physics. After briefly overviewing the LHC construction and installation progress, the status of the ATLAS experiment will be presented, including examples of the exciting prospects for new physics.

  4. AINUR: Atlas of Images of NUclear Rings

    E-Print Network [OSTI]

    Comeron, S; Beckman, J E; Laurikainen, E; Salo, H; Martinez-Valpuesta, I; Buta, R J

    2009-01-01

    We present the most complete atlas of nuclear rings to date. We include 109 rings found in 103 galaxies, six of which are elliptical galaxies, five are highly inclined disc galaxies, 17 are unbarred disc galaxies, and 75 are barred disc galaxies. Star-forming nuclear rings occur in 19% of disc galaxies. We aim to explore possible relationships between the size and morphology of the rings and various galactic parameters. We produce colour index and structure maps, as well as Halpha and Paalpha continuum-subtracted images from HST archival data. We derive ellipticity profiles from H-band 2MASS images in order to detect bars and find their metric parameters. We measure the non-axisymmetric torque parameter, Qg, and search for correlations between bar, ring metric parameters, and Qg. Our atlas of nuclear rings includes star-forming and dust rings. Nuclear rings span a range from a few tens of parsecs to a few kiloparsecs in radius. Star-forming nuclear rings can be found in a wide range of morphological types, fr...

  5. optical links for the atlas pixel detector

    E-Print Network [OSTI]

    Stucci, Stefania Antonia; The ATLAS collaboration

    2015-01-01

    Optical links are necessary to satisfy the high speed readout over long distances for advanced silicon detector systems. We report on the optical readout used in the newly installed central pixel layer (IBL) in the ATLAS experiment. The off detector readout employs commercial optical to analog converters, which were extensively tested for this application. Performance measurements during installation and commissioning will be shown. With the increasing instantaneous luminosity in the next years, the next layers outwards of IBL of the ATLAS Pixel detector (Layer 1 and Layer 2) will reach their bandwidth limits. A plan to increase the bandwidth by upgrading the off detector readout chain is put in place. The plan also involves new optical readout components, in particular the optical receivers, for which commercial units cannot be used and a new design has been made. The latter allows for a wider operational range in term of data frequency and light input power to match the on-detector sending units on the pres...

  6. 2011 Asia Value Advisors. All rights reserved Launching Your Social Business

    E-Print Network [OSTI]

    create social value / impact ? ¨ How do I launch a social business ? #12;© 2011 Asia Value Advisors. All Impact Creation #12;© 2011 Asia Value Advisors. All rights reserved Social Issues (Systematic Approach me ? ¨ How do I create social value / impact ? ¨ How do I launch a social business ? #12;© 2011 Asia

  7. LEEDCo awarded $4 million to launch offshore wind development on Lake Erie

    E-Print Network [OSTI]

    Rollins, Andrew M.

    LEEDCo awarded $4 million to launch offshore wind development on Lake Erie By Teresa Dixon Murray in the United States, the Lake Erie Energy Development Corp. of Cleveland will launch an offshore wind, Democrat of Ohio, who has pushed for such alternative energy projects for years, said offshore wind could

  8. Radiological Contingency Planning for the Mars Science Laboratory Launch

    SciTech Connect (OSTI)

    Paul P. Guss

    2008-04-01

    This paper describes the contingency planning for the launch of the Mars Science Laboratory scheduled for the 21-day window beginning on September 15, 2009. National Security Technologies, LLC (NSTec), based in Las Vegas, Nevada, will support the U.S. Department of Energy (DOE) in its role for managing the overall radiological contingency planning support effort. This paper will focus on new technologies that NSTec’s Remote Sensing Laboratory (RSL) is developing to enhance the overall response capability that would be required for a highly unlikely anomaly. This paper presents recent advances in collecting and collating data transmitted from deployed teams and sensors. RSL is responsible to prepare the contingency planning for a range of areas from monitoring and assessment, sample collection and control, contaminated material release criteria, data management, reporting, recording, and even communications. The tools RSL has available to support these efforts will be reported. The data platform RSL will provide shall also be compatible with integration of assets and field data acquired with other DOE, National Space and Aeronautics and Space Administration (NASA), state, and local resources, personnel, and equipment. This paper also outlines the organizational structure for response elements in radiological contingency planning.

  9. Radiological Contingency Planning for the Mars Science Laboratory Launch

    SciTech Connect (OSTI)

    Paul Guss, Robert Augdahl, Bill Nickels, Cassandra Zellers

    2008-04-16

    This paper describes the contingency planning for the launch of the Mars Science Laboratory scheduled for the 21-day window beginning on September 15, 2009. National Security Technologies, LLC (NSTec), based in Las Vegas, Nevada, will support the U.S. Department of Energy (DOE) in its role for managing the overall radiological contingency planning support effort. This paper will focus on new technologies that NSTec’s Remote Sensing Laboratory (RSL) is developing to enhance the overall response capability that would be required for a highly unlikely anomaly. This paper presents recent advances in collecting and collating data transmitted from deployed teams and sensors. RSL is responsible to prepare the contingency planning for a range of areas from monitoring and assessment, sample collection and control, contaminated material release criteria, data management, reporting, recording, and even communications. The tools RSL has available to support these efforts will be reported. The data platform RSL will provide shall also be compatible with integration of assets and field data acquired with other DOE, National Aeronautics and Space Administration, state, and local resources, personnel, and equipment. This paper also outlines the organizational structure for response elements in radiological contingency planning.

  10. An energy atlas of five Central American countries. Un atlas energetico de cinco paises Centroamericanos

    SciTech Connect (OSTI)

    Trocki, L.; Newman, C.K.; Gurule, F.; Aragon, P.C.; Peck, C.

    1988-08-01

    In a series of maps and figures, this atlas summarizes what is known about the energy resources and how these resources and oil imports supply the energy needs of five Central American countries: Guatemala, El Salvador, Honduras, Costa Rica, and Panama. The main exploited energy resources are firewood, hydroelectric energy, bagasse from sugar cane residues, and geothermal energy. Limited oil exploration in the region has uncovered modest oil resources only in Guatemala. Peat and small coal deposits are also known to exist but are not presently being exploited. After the description of energy resources, this atlas describes energy supply and demand patterns in each country. It concludes with a description of socioeconomic data that strongly affect energy demand. 4 refs.

  11. Utility Software for ATLAS TDAQ: Summer student project report

    E-Print Network [OSTI]

    Zardilis, Argyris

    2013-01-01

    This is a summer student project report detailing two application developed. One of them aggregates information published by applications in the ATLAS TDAQ environment and the other automatically creates configuration databases describing the system, its components and their interactions.

  12. The Cancer Genome Atlas Pan-Cancer analysis project

    E-Print Network [OSTI]

    Lander, Eric S.

    The Cancer Genome Atlas (TCGA) Research Network has profiled and analyzed large numbers of human tumors to discover molecular aberrations at the DNA, RNA, protein and epigenetic levels. The resulting rich data provide a ...

  13. Quarkonium production and polarisation with early data at ATLAS

    E-Print Network [OSTI]

    Darren D. Price

    2008-08-25

    One of the first physics results to come out of ATLAS will be an analysis of J/psi and Upsilon production at 14 TeV. I give an overview of the motivation for looking at the theoretical model underlying quarkonium production, ATLAS expected performance and rates for quarkonium reconstruction and ability to separate out various proposed production models with a view to improving our understanding of QCD.

  14. Accueil > Blog > La Suisse sort un nouveau bijou d'atlas La Suisse sort un nouveau bijou d'atlas

    E-Print Network [OSTI]

    Giger, Christine

    Accueil > Blog > La Suisse sort un nouveau bijou d'atlas La Suisse sort un nouveau bijou d désignées par leur nom. Source 20 Minutes Tweeter ce billet Cette entrée a été publiée dans Blogging, Infos

  15. A New ATLAS Muon CSC Readout System with System on Chip Technology...

    Office of Scientific and Technical Information (OSTI)

    A New ATLAS Muon CSC Readout System with System on Chip Technology on ATCA Platform Citation Details In-Document Search Title: A New ATLAS Muon CSC Readout System with System on...

  16. Evolution of the ATLAS Metadata Interface (AMI)

    E-Print Network [OSTI]

    Odier, Jerome; The ATLAS collaboration; Fulachier, Jerome; Lambert, Fabian

    2015-01-01

    The ATLAS Metadata Interface (AMI) can be considered to be a mature application because it has existed for at least 10 years. Over the years, the number of users and the number of functions provided for these users has increased. It has been necessary to adapt the hardware infrastructure in a seamless way so that the Quality of Service remains high. We will describe the evolution of the application from the initial one, using single server with a MySQL backend database, to the current state, where we use a cluster of Virtual Machines on the French Tier 1 Cloud at Lyon, an ORACLE database backend also at Lyon, with replication to CERN using ORACLE streams behind a back-up server.

  17. Performance of the ATLAS Tile calorimeter

    E-Print Network [OSTI]

    Bertoli, Gabriele; The ATLAS collaboration

    2015-01-01

    The Tile Calorimeter (TileCal) of the ATLAS experiment at the LHC is the central hadronic calorimeter designed for energy reconstruction of hadrons, jets, tau­particles and missing transverse energy. TileCal is a scintillator­steel sampling calorimeter and it covers the region of pseudorapidity energies ranging from ~30 MeV to ~2 TeV. The read­out system is responsible for reconstructing the data in real­time. The digitized signals are reconstructed with the Optimal Filtering algorithm, which computes for each channel the signal amplitude, time and quality factor at the required high rate. Each stage of the signal production from scintillation light to the signal reconstruc...

  18. Performance of the ATLAS Tile Calorimeter

    E-Print Network [OSTI]

    Solodkov, Alexander; The ATLAS collaboration

    2015-01-01

    The ATLAS Tile hadronic calorimeter (TileCal) provides highly-segmented energy measurements of incoming particles. It is a key detector for the measurement of hadrons, jets, tau leptons and missing transverse energy. It is also useful for identification and reconstruction of muons due to good signal to noise ratio. The calorimeter consists of thin steel plates and 460,000 scintillating tiles configured into 5000 cells, each viewed by two photomultipliers. The calorimeter response and its readout electronics is monitored to better than 1% using radioactive source, laser and charge injection systems. The calibration and performance of the calorimeter have been established through test beam measurements, cosmic ray muons and the large sample of muons and single hadrons from proton-proton collisions acquired in 2011 and 2012. The results demonstrate that the Tile Calorimeter has performed well within the design requirements and it has given essential contribution to reconstructed objects and physics results.

  19. Top Quark Production Measurements at ATLAS

    E-Print Network [OSTI]

    Robert Calkins; for the ATLAS Collaboration

    2011-10-05

    An overview of top quark production measurements using the ATLAS detector at the LHC is presented. Using 35 pb^-1 of data, we measured the ttbar cross-section in the lepton+jets channel to 13% precision and set limits on the cross-section for the all hadronic decay channel. The measurement in the dilepton channel was performed using 0.70 fb^-1 of data and was combined with the lepton+jets channel result for our most precise ttbar cross-section measurement of \\sigma(ttbar+X) =176 +- 5(stat) +13 -10 (syst) +-7(lumi). Single top production was also measured in the t-channel using 0.70 fb^-1 of data.

  20. Probing QCD with jets, photons and weak bosons at the LHC with ATLAS

    SciTech Connect (OSTI)

    Cooper, Ben [University College London, London (United Kingdom); Collaboration: ATLAS Collaboration

    2012-10-23

    A summary of ATLAS measurements that probe 'hard' QCD interactions in the protonproton collisions of the LHC are presented.

  1. Experimental techniques for subnanosecond resolution of laser-launched plates and impact studies

    SciTech Connect (OSTI)

    Paisley, D.L.; Warnes, R.H.; Stahl, D.B.

    1994-09-01

    Miniature laser-launched plates have applications in shock wave physics, studying dynamic properties of materials and can be used to generate experimental data in a manner similar to a laboratory gas gun for one-dimensional impact experiments. Laser-launched plates have the advantage of small size, low kinetic energy, and can be launched with ubiquitous laboratory lasers. Because of the small size and high accelerations (10{sup 7}--10{sup 10} g`s), improved temporal resolution and optical non-contact methods to collect data are required. Traditional mechanical in-situ gauges would significantly impair the data quality and do not have the required time response.

  2. HIGH SPATIAL RESOLUTION SOLAR ATLAS IN PROVENCE-ALPES-CTE D'AZUR

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , realized the Solar Atlas project thanks to the support and funding of local and regional organizationsHIGH SPATIAL RESOLUTION SOLAR ATLAS IN PROVENCE-ALPES-CÔTE D'AZUR Philippe Blanc 1 , Bella Espinar) 1. Introduction Most existing solar atlases cover a continent or a country with a spatial resolution

  3. A Nuclear Physics Program at the ATLAS Experiment at the CERN Large Hadron Collider

    E-Print Network [OSTI]

    S. Aronson; K. Assamagan; H. Gordon; M. Leite; M. Levine; P. Nevski; H. Takai; S. White; B. Cole; J. L. Nagle

    2002-12-13

    The ATLAS collaboration has significant interest in the physics of ultra-relativistic heavy ion collisions. We submitted a Letter of Intent to the United States Department of Energy in March 2002. The following document is a slightly modified version of that LOI. More details are available at: http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/SM/ions

  4. The KAMM/WAsP Numerical Wind Atlas A powerful ingredient for wind energy planning

    E-Print Network [OSTI]

    The KAMM/WAsP Numerical Wind Atlas A powerful ingredient for wind energy planning J. Badger, N.G. Mortensen, J.C. Hansen Wind Energy Department Risø National Laboratory Great Wall World Renewable Energy Forum Beijing, 23-27 October 2006 #12;Wind Farm Planning National Wind Atlas Environmental Atlases Maps

  5. U.S. Department of Energy Launches New Website for Asset Revitalizatio...

    Office of Environmental Management (EM)

    Revitalization Initiative (ARI) website. WASHINGTON, D.C. - Today, the U.S.Department of Energy (DOE) launched a website for the Asset Revitalization Initiative (ARI), a DOE-wide...

  6. Endeavour Launch 3: The Trip of a Lifetime | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    on the bus was this little guy: When all the guests had shown up, Sandi handed everyone a cool NASA "Launch Guest" button, then announced that we were going to start driving over...

  7. The development and implementation of process control strategy on a vehicle launch

    E-Print Network [OSTI]

    Lindell, Heather M. (Heather Marie)

    2005-01-01

    This thesis delves into the strategic and organizational challenges of implementing process control plans for a vehicle launch. The author explores the development and implementation of process control plans employing lean ...

  8. Deutsche Telekom launches new integrated location-based services in selected markets across Europe

    E-Print Network [OSTI]

    Deutschmann, Rainer

    Deutsche Telekom launches new integrated location-based services in selected markets across Europe Telekom announces a range of innovative location-based services in selected markets across Europe

  9. Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics

    SciTech Connect (OSTI)

    Aad, G.; Abat, E.; Abbott, B.; Abdallah, J.; Abdelalim, A.A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Acharya, Bobby Samir; Adams, D.L.; Addy, T.N.; Adorisio, C.; Adragna, P.; Adye, T.; Aguilar-Saavedra, J.A.; Aharrouche, M.; Ahlen, S.P.; Ahles, F.; Ahmad, A.; /SUNY, Albany /Alberta U. /Ankara U. /Annecy, LAPP /Argonne /Arizona U. /Texas U., Arlington /Athens U. /Natl. Tech. U., Athens /Baku, Inst. Phys. /Barcelona, IFAE /Belgrade U. /VINCA Inst. Nucl. Sci., Belgrade /Bergen U. /LBL, Berkeley /Humboldt U., Berlin /Bern U., LHEP /Birmingham U. /Bogazici U. /INFN, Bologna /Bologna U.

    2011-11-28

    The Large Hadron Collider (LHC) at CERN promises a major step forward in the understanding of the fundamental nature of matter. The ATLAS experiment is a general-purpose detector for the LHC, whose design was guided by the need to accommodate the wide spectrum of possible physics signatures. The major remit of the ATLAS experiment is the exploration of the TeV mass scale where groundbreaking discoveries are expected. In the focus are the investigation of the electroweak symmetry breaking and linked to this the search for the Higgs boson as well as the search for Physics beyond the Standard Model. In this report a detailed examination of the expected performance of the ATLAS detector is provided, with a major aim being to investigate the experimental sensitivity to a wide range of measurements and potential observations of new physical processes. An earlier summary of the expected capabilities of ATLAS was compiled in 1999 [1]. A survey of physics capabilities of the CMS detector was published in [2]. The design of the ATLAS detector has now been finalised, and its construction and installation have been completed [3]. An extensive test-beam programme was undertaken. Furthermore, the simulation and reconstruction software code and frameworks have been completely rewritten. Revisions incorporated reflect improved detector modelling as well as major technical changes to the software technology. Greatly improved understanding of calibration and alignment techniques, and their practical impact on performance, is now in place. The studies reported here are based on full simulations of the ATLAS detector response. A variety of event generators were employed. The simulation and reconstruction of these large event samples thus provided an important operational test of the new ATLAS software system. In addition, the processing was distributed world-wide over the ATLAS Grid facilities and hence provided an important test of the ATLAS computing system - this is the origin of the expression 'CSC studies' ('computing system commissioning'), which is occasionally referred to in these volumes. The work reported does generally assume that the detector is fully operational, and in this sense represents an idealised detector: establishing the best performance of the ATLAS detector with LHC proton-proton collisions is a challenging task for the future. The results summarised here therefore represent the best estimate of ATLAS capabilities before real operational experience of the full detector with beam. Unless otherwise stated, simulations also do not include the effect of additional interactions in the same or other bunch-crossings, and the effect of neutron background is neglected. Thus simulations correspond to the low-luminosity performance of the ATLAS detector. This report is broadly divided into two parts: firstly the performance for identification of physics objects is examined in detail, followed by a detailed assessment of the performance of the trigger system. This part is subdivided into chapters surveying the capabilities for charged particle tracking, each of electron/photon, muon and tau identification, jet and missing transverse energy reconstruction, b-tagging algorithms and performance, and finally the trigger system performance. In each chapter of the report, there is a further subdivision into shorter notes describing different aspects studied. The second major subdivision of the report addresses physics measurement capabilities, and new physics search sensitivities. Individual chapters in this part discuss ATLAS physics capabilities in Standard Model QCD and electroweak processes, in the top quark sector, in b-physics, in searches for Higgs bosons, supersymmetry searches, and finally searches for other new particles predicted in more exotic models.

  10. BioPower Atlas and BioFuels Atlas | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece:BajoBelpower SrlHydroelectricBioCleanBioPowerAtlas

  11. Scalable Database Access Technologies for ATLAS Distributed Computing

    E-Print Network [OSTI]

    A. Vaniachine; for the ATLAS Collaboration

    2009-10-02

    ATLAS event data processing requires access to non-event data (detector conditions, calibrations, etc.) stored in relational databases. The database-resident data are crucial for the event data reconstruction processing steps and often required for user analysis. A main focus of ATLAS database operations is on the worldwide distribution of the Conditions DB data, which are necessary for every ATLAS data processing job. Since Conditions DB access is critical for operations with real data, we have developed the system where a different technology can be used as a redundant backup. Redundant database operations infrastructure fully satisfies the requirements of ATLAS reprocessing, which has been proven on a scale of one billion database queries during two reprocessing campaigns of 0.5 PB of single-beam and cosmics data on the Grid. To collect experience and provide input for a best choice of technologies, several promising options for efficient database access in user analysis were evaluated successfully. We present ATLAS experience with scalable database access technologies and describe our approach for prevention of database access bottlenecks in a Grid computing environment.

  12. DAQ hardware and software development for the ATLAS Pixel Detector

    E-Print Network [OSTI]

    Stramaglia, Maria Elena; The ATLAS collaboration

    2015-01-01

    In 2014, the Pixel Detector of the ATLAS experiment has been extended by about 12 million pixels thanks to the installation of the Insertable B-Layer (IBL). Data-taking and tuning procedures have been implemented along with newly designed read-out hardware to support high bandwidth for data readout and calibration. The hardware is supported by an embedded software stack running on the read-out boards. The same boards will be used to upgrade the read-out bandwidth for the two outermost layers of the ATLAS Pixel Barrel (54 million pixels). We present the IBL read-out hardware and the supporting software architecture used to calibrate and operate the 4-layer ATLAS Pixel detector. We discuss the technical implementations and status for data taking, validation of the DAQ system in recent cosmic ray data taking, in-situ calibrations, and results from additional tests in preparation for Run 2 at the LHC.

  13. Atlas of solar hidden photon emission

    E-Print Network [OSTI]

    Javier Redondo

    2015-01-28

    Hidden photons, gauge bosons of a U(1) symmetry of a hidden sector, can constitute the dark matter of the universe and a smoking gun for large volume compactifications of string theory. In the sub-eV mass range, a possible discovery experiment consists on searching the copious flux of these particles emitted from the Sun in a helioscope setup \\`a la Sikivie. In this paper, we compute the flux of transversely polarised HPs from the Sun, a necessary ingredient for interpreting such experiments. We provide a detailed exposition of photon-HP oscillations in inhomogenous media, with special focus on resonance oscillations, which play a leading role in many cases. The region of the Sun emitting HPs resonantly is a thin spherical shell for which we justify an averaged-emission formula and which implies a distinctive morphology of the angular distribution of HPs on Earth in many cases. Low mass HPs with energies in the visible and IR have resonances very close to the photosphere where the solar plasma is not fully ionised and requires building a detailed model of solar refraction and absorption. We present results for a broad range of HP masses (from 0-1 keV) and energies (from the IR to the X-ray range), the most complete atlas of solar HP emission to date.

  14. ATLAS - LHC Run 2 jet performance

    E-Print Network [OSTI]

    Varouchas, Dimitris; The ATLAS collaboration

    2015-01-01

    Jet energy scale systematic uncertainties and jet cleaning for early 2015 data analyses Many searches and measurements using early 2015 data rely on the accurate determination of the jet energy measurement and the rejection of jets arising from non collision backgrounds and detector faults. In this talk, the procedure used to establish the systematic uncertainties on the jet energy scale and resolutions for 2015 data analysis will be described. The uncertainties will be compared to the uncertainties achieved for 2012 data analyses. In addition, variables related to the presence of beam backgrounds and detector imperfections will be shown, comparing them in early data and MC simulations. Based on these studies, selection cuts to reject these backgrounds will be defined and their efficiency to select signal and background jets studied in data. Inputs to jet reconstruction and boosted object tagging with the ATLAS detector at sqrt(s)=13 TeV The LHC has recently concluded a 2-year-long shutdown delivering once mo...

  15. The ATLAS Higgs Machine Learning Challenge

    E-Print Network [OSTI]

    Cowan, Glen; The ATLAS collaboration; Bourdarios, Claire

    2015-01-01

    High Energy Physics has been using Machine Learning techniques (commonly known as Multivariate Analysis) since the 1990s with Artificial Neural Net and more recently with Boosted Decision Trees, Random Forest etc. Meanwhile, Machine Learning has become a full blown field of computer science. With the emergence of Big Data, data scientists are developing new Machine Learning algorithms to extract meaning from large heterogeneous data. HEP has exciting and difficult problems like the extraction of the Higgs boson signal, and at the same time data scientists have advanced algorithms: the goal of the HiggsML project was to bring the two together by a “challenge”: participants from all over the world and any scientific background could compete online to obtain the best Higgs to tau tau signal significance on a set of ATLAS fully simulated Monte Carlo signal and background. Instead of HEP physicists browsing through machine learning papers and trying to infer which new algorithms might be useful for HEP, then c...

  16. Higgs Boson & Flavor at the ATLAS & CMS Experiments

    E-Print Network [OSTI]

    Okawa, Hideki; The ATLAS collaboration

    2015-01-01

    The ATLAS and CMS Collaborations have discovered a Higgs boson in 2012. Remaining questions are to understand the property of the Higgs sector with precision, and to search for signs of physics beyond the Standard Model. Flavor studies and search for rare decays of the Higgs boson are promising probes to search for new physics. Related studies beyond the Higgs sector are also mentioned. This talk presents an overview of the results of such studies at the ATLAS and CMS experiments in LHC Run-1.

  17. The IAG solar flux atlas: Accurate wavelengths and absolute convective blueshift in standard solar spectra

    E-Print Network [OSTI]

    Reiners, Ansgar; Lemke, Ulrike; Hinrichs, Johannes; Reinsch, Klaus

    2015-01-01

    We present a new solar flux atlas with the aim to understand wavelength precision and accuracy in solar benchmark data. The atlas covers the wavelength range 405--2300 nm and was observed at the Institut f\\"ur Astrophysik, G\\"ottingen (IAG) with a Fourier Transform Spectrograph. In contrast to other FTS atlases, the entire visible wavelength range was observed simultaneously using only one spectrograph setting. We compare the wavelength solution of the new atlas to the Kitt Peak solar flux atlases and to the HARPS frequency-comb calibrated solar atlas. Comparison reveals systematics in the two Kitt Peak FTS atlases resulting from their wavelength scale construction, and shows consistency between the IAG and the HARPS atlas. We conclude that the IAG atlas is precise and accurate on the order of $\\pm 10$ m s$^{-1}$ in the wavelength range 405--1065 nm while the Kitt Peak atlases show deviations as large as several ten to 100 m s$^{-1}$. We determine absolute convective blueshift across the spectrum from the IAG...

  18. Alpha channeling with high-field launch of lower hybrid waves

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ochs, I. E.; Bertelli, N.; Fisch, N. J.

    2015-11-04

    Although lower hybrid waves are effective at driving currents in present-day tokamaks, they are expected to interact strongly with high-energy particles in extrapolating to reactors. In the presence of a radial alpha particle birth gradient, this interaction can take the form of wave amplification rather than damping. While it is known that this amplification more easily occurs when launching from the tokamak high-field side, the extent of this amplification has not been made quantitative. Here, by tracing rays launched from the high- field-side of a tokamak, the required radial gradients to achieve amplification are calculated for a temperature and densitymore »regime consistent with a hot-ion-mode fusion reactor. As a result, these simulations, while valid only in the linear regime of wave amplification, nonetheless illustrate the possibilities for wave amplification using high-field launch of the lower hybrid wave.« less

  19. Dynamical Mechanism of Two-Dimensional Plasmon Launching by Swift Electrons

    E-Print Network [OSTI]

    Xiao Lin; Xihang Shi; Fei Gao; Ido Kaminer; Zhaoju Yang; Zhen Gao; Hrvoje Buljan; John D. Joannopoulos; Marin Solja?i?; Hongsheng Chen; Baile Zhang

    2015-07-30

    Launching of surface plasmons by swift electrons has long been utilized to investigate plasmonic properties of ultrathin, or two-dimensional (2D), electron systems, including graphene plasmons recently. However, spatio-temporal dynamics of this process has never been clearly revealed. This is because the impact of an electron will generate not only plasmons, but also photons, demanding both space and time. Here we address this issue within the framework of classical electromagnetics by showing the dynamical process of 2D plasmon launching by swift electrons on graphene. The launching of 2D plasmons on graphene is not immediate, but is delayed after a hydrodynamic splashing-like process, which occurs during the formation time of transition radiation caused by the electron's impact. This newly revealed process also implies that all previous estimates on the yields of graphene plasmons in electron-energy-loss-spectroscopy have been overestimated.

  20. BIPOLAR JETS LAUNCHED FROM ACCRETION DISKS. II. THE FORMATION OF ASYMMETRIC JETS AND COUNTER JETS

    SciTech Connect (OSTI)

    Fendt, Christian; Sheikhnezami, Somayeh E-mail: nezami@mpia.de

    2013-09-01

    We investigate the jet launching from accretion disks, in particular the formation of intrinsically asymmetric jet/counter jet systems. We perform axisymmetric MHD simulations of the disk-jet structure on a bipolar computational domain covering both hemispheres. We apply various models such as asymmetric disks with (initially) different scale heights in each hemisphere, symmetric disks into which a local disturbance is injected, and jets launched into an asymmetric disk corona. We consider both a standard global magnetic diffusivity distribution and a novel local diffusivity model. Typical disk evolution first shows substantial disk warping and then results in asymmetric outflows with a 10%-30% mass flux difference. We find that the magnetic diffusivity profile is essential for establishing a long-term outflow asymmetry. We conclude that bipolar asymmetry in protostellar and extragalactic jets can indeed be generated intrinsically and maintained over a long time by disk asymmetries and the standard jet launching mechanism.

  1. Alpha Channeling with High-field Launch of Lower Hybrid Waves

    E-Print Network [OSTI]

    Ochs, Ian E; Fisch, Nathaniel J

    2015-01-01

    Although lower hybrid waves are effective at driving currents in present-day tokamaks, they are expected to interact strongly with high-energy particles in extrapolating to reactors. In the presence of a radial alpha particle birth gradient, this interaction can take the form of wave amplification rather than damping. While it is known that this amplification more easily occurs when launching from the tokamak high-field side, the extent of this amplification has not been made quantitative. Here, by tracing rays launched from the high- field-side of a tokamak, the required radial gradients to achieve amplification are calculated for a temperature and density regime consistent with a hot-ion-mode fusion reactor. These simulations, while valid only in the linear regime of wave amplification, nonetheless illustrate the possibilities for wave amplification using high-field launch of the lower hybrid wave.

  2. Measurement of the Z??? cross section with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    The Z??? cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the ? leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis ...

  3. Charged Higgs boson searches with the ATLAS detector

    E-Print Network [OSTI]

    Gilles, Geoffrey; The ATLAS collaboration

    2015-01-01

    Charged Higgs bosons, H+, are predicted by many models with an extended Higgs sector. This presentation reports ATLAS studies and results of searches for charged Higgs bosons in various final states. Exclusion limits are given and interpreted in the context of the Minimal Supersymmetric extension of the Standard Model.

  4. Solar Atlas for the Mediterranean Carsten Hoyer-Klick

    E-Print Network [OSTI]

    Boyer, Edmond

    Solar Atlas for the Mediterranean Carsten Hoyer-Klick 1 , Lucien Wald 2 , Lionel Menard 2 Transvalor, Sophia Antipolis, France 4 GeoModel Solar, Bratislava, Slovak Republic, 5 Joint Research Center The solar resource is the "fuel" of solar energy applications and its availability is a key economic

  5. BRAIN ATLASES AND REGISTRATION Arthur W. Toga and Paul Thompson

    E-Print Network [OSTI]

    Thompson, Paul

    1 BRAIN ATLASES AND REGISTRATION Arthur W. Toga and Paul Thompson Laboratory of Neuro Imaging, Dept. of Neurology, Division of Brain Mapping, UCLA School of Medicine, Los Angeles, CA A Book Chapter for: Handbook and Stroke and the National Institute of Mental Health (NINDS/NIMH NS38753), and by a Human Brain Project

  6. Agreements --Africa 27 28 Atlas of International Freshwater Agreements

    E-Print Network [OSTI]

    Wolf, Aaron

    Agreements -- Africa 27 AFRICA #12;28 Atlas of International Freshwater Agreements Congo of the Niger; and 6) rules for future occupation of the coast of the African continent #12;Agreements -- Africa Great Britain and France #12;Agreements -- Africa 31 Gash Total area: 40,000 km2 Area of Basin

  7. Review of ATLAS results on MPI, soft QCD and diffraction

    E-Print Network [OSTI]

    Staszewski, Rafal; The ATLAS collaboration

    2015-01-01

    The most recent ATLAS measurements on multiple parton interactions, soft QCD and diffraction are presented. The measurements of underlying event in jet and Z bozon events are discussed. Then, the the total cross section measurement with the ALFA detectors is described.

  8. MAPPING NEURODEGENERATION USING MULTI-ATLAS FLUID IMAGE ALIGNMENT

    E-Print Network [OSTI]

    Thompson, Paul

    MAPPING NEURODEGENERATION USING MULTI-ATLAS FLUID IMAGE ALIGNMENT Yi-Yu Chou1 , Natasha Leporé1 , Xue Hua1 , Arthur W. Toga1 , Paul M. Thompson1 and the Alzheimer's Disease Neuroimaging Initiative 1 morphometry [3], and automated hippocampal mapping using adaptive boosting [4]. #12;References: [1] Chou YY et

  9. Agreements --Asia 51 52 Atlas of International Freshwater Agreements

    E-Print Network [OSTI]

    Wolf, Aaron

    Agreements -- Asia 51 ASIA #12;52 Atlas of International Freshwater Agreements Amur River. Photo credit: Mikhail A. Yatskov. Amur* Total area: 2,085,900 km2 Area of Basin in Country Countries km2 and the Upper Amur River #12;Agreements -- Asia 53 An Nahr Al Kabir Total area: 1,300 km2 Area of Basin

  10. Photon and di-photon production at ATLAS

    E-Print Network [OSTI]

    Marco Delmastro

    2011-11-09

    The latest ATLAS measurements of the cross section for the inclusive production of isolated prompt photons in $pp$ collisions at a centre-of-mass energy $\\sqrt{s}$ = 7 TeV at the LHC are presented, as well as the measurement of the di-photon production cross section.

  11. East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests Campaign

    E-Print Network [OSTI]

    East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests non-violent, creative confrontation to expose global environmental problems, and to force solutions Law Enforcement and Governance (FLEG) to put words into action and take steps to seriously address

  12. Magneto-Centrifugal Launching of Jets from Accretion Disks. II: Inner Disk-Driven Winds

    E-Print Network [OSTI]

    Ruben Krasnopolsky; Zhi-Yun Li; Roger D. Blandford

    2003-06-25

    We follow numerically the time evolution of axisymmetric outflows driven magneto-centrifugally from the inner portion of accretion disks, from their launching surface to large, observable distances. Special attention is paid to the collimation of part of the outflow into a dense, narrow jet around the rotation axis, after a steady state has been reached. For parameters typical of T Tauri stars, we define a fiducial ``jet'' as outlined by the contour of constant density at 10^4 cm^{-3}. We find that the jet, so defined, appears nearly cylindrical well above the disk, in agreement with previous asymptotic analyses. Closer to the equatorial plane, the density contour can either bulge outwards or pinch inwards, depending on the conditions at the launching surface, particularly the mass flux distribution. We find that even though a dense, jet-like feature is always formed around the axis, there is no guarantee that the high-density axial jet would dominate the more tenuous, wide-angle part of the wind. Specifically, on the 100 AU scale, resolvable by HST and ground-based adaptive optics for nearby T Tauri winds, the fraction of the wind mass flux enclosed by the fiducial jet can vary substantially, again depending on the launching conditions. We show two examples in which the fraction is ~20% and ~45%. These dependences may provide a way to constrain the conditions at the launching surface, which are poorly known at present.

  13. Simultaneous velocity interferometry and electronic streak photography of laser-launched plates

    SciTech Connect (OSTI)

    Paisley, D.L.; Stahl, D.B.; Garcia, I.A.

    1991-01-01

    Laser-launched, miniature, pseudo-one-dimensional flyer plates are evaluated by three distinct optical techniques that may be incorporated into an optical diagnostic system to give a complete understanding of the plate performance. These techniques are: velocity interferometry, streak photography, and pulsed laser stereo photography. 2 refs., 5 figs.

  14. Adding STARFire Analysis Layers to Google Earth through a KML Network Link 1) Launch Google Earth

    E-Print Network [OSTI]

    Adding STARFire Analysis Layers to Google Earth through a KML Network Link 1) Launch Google Earth 2) The network link will be added in the Places control within Google Earth. Select the node level in the tree layers for viewing within Google Earth. Double clicking on a layer will zoom you to the extent

  15. The World Is Waiting HMS launches transformative $750 million fundraising campaign

    E-Print Network [OSTI]

    Corey, David P.

    The World Is Waiting HMS launches transformative $750 million fundraising campaign Harvard Medical of the largest biomedical research community in the world.Together with our 16 renowned affiliated hospitals and research institutions, we are making breakthroughs that have a tangible impact on how the world understands

  16. DOE to Launch Collaborative Effort with Industry to Improve Natural Gas Systems

    Broader source: Energy.gov [DOE]

    DOE will launch a collaborative effort with industry to evaluate and scope high-impact manufacturing R&D to improve natural gas systems efficiency and leak reduction. The goal of this effort is to establish an advanced manufacturing initiative. AMO will lead this effort.

  17. 2A New Belt for the Van Allen Belts! Soon after launch, NASA's Van Allen

    E-Print Network [OSTI]

    2A New Belt for the Van Allen Belts! Soon after launch, NASA's Van Allen Probes detected a new Third Belt in the Van Allen Radiation Belts that encircle Earth. Located between the Inner and Outer Belts, which have been known to scientists for decades, the third belt is very temporary. It only

  18. Launched a field test site dedicated to Armillaria root rot research next to the

    E-Print Network [OSTI]

    · Launched a field test site dedicated to Armillaria root rot research next to the MAES Northwest a dedicated test site near Traverse City -- the heart of Michigan's cherry industry. The new site will make. The dedicated test site is criti- cal because the disease is slow to develop and requires years of con- tinuous

  19. Measurements of the properties of the Higgs boson using the ATLAS Detector

    E-Print Network [OSTI]

    Queitsch-maitland, Michaela; The ATLAS collaboration

    2015-01-01

    A review of Run 1 results on the mass, spin CP properties, and differential cross section  measurements of the Higgs boson using the ATLAS detector will be presented.

  20. ATLAS/BNL Physicist Marc-Andre Pleier Explains the Higgs Mechanism

    SciTech Connect (OSTI)

    Pleier,Marc-Andre

    2013-10-07

    ATLAS/BNL Physicist Marc-Andre Pleier explains his role in analyzing data from the Large Hadron Collider and the search for the Higgs boson

  1. ATLAS/BNL Physicist Marc-Andre Pleier Explains the Higgs Mechanism

    ScienceCinema (OSTI)

    Pleier,Marc-Andre

    2014-06-04

    ATLAS/BNL Physicist Marc-Andre Pleier explains his role in analyzing data from the Large Hadron Collider and the search for the Higgs boson

  2. TransAtlas and BioPower Tools | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    transatlasandbiopowertools.pdf More Documents & Publications Web Mapping and Online GIS Applications for Renewable Energy Geospatial Technology Summit BioFuels Atlas...

  3. Vector and Scalar Bosons at DØ and ATLAS

    SciTech Connect (OSTI)

    Lammers, Sabine Sabine

    2014-09-26

    Vector Boson Fusion (VBF) has never been measured in hadron collisions, but it is one of the most sensitive modes for low mass Standard Model Higgs production at ATLAS. The objective of this proposal is to measure VBF production of W and Z bosons at the DØ Experiment taking place at the Tevatron Collider near Chicago, Illinois, and at the ATLAS Experiment, running at the Large Hadron Collider in Geneva, Switzerland. The framework developed in these measurements will be used to discover and study the Higgs Boson produced through the same mechanism (VBF) at ATLAS. The 10 f b?1 dataset recently collected by the DØ experiment provides a unique opportunity to observe evidence of VBF production of W Bosons, which will provide the required theoretical knowledge - VBF cross sections - and experimental knowledge - tuning of measurement techniques - on which to base the VBF measurements at the LHC. At the time of this writing, the ATLAS experiment has recorded 5 fb?1 of data at ?s = 7 TeV, and expects to collect at least another 5 in 2012. Assuming Standard Model cross sections, this dataset will allow for the observation of VBF production of W, Z and Higgs bosons. The major challenges for the first observation of VBF interactions are: developing highly optimized forward jet identification algorithms, and accurately modeling both rates and kinematics of background processes. With the research program outlined in this grant proposal, I plan to address each of these areas, paving the way for VBF observation. The concentration on VBF production for the duration of this grant will be at ATLAS where the anticipated high pileup rates necessitates a cleaner signal. My past experience with forward jet identification at the ZEUS experiment, and with W+(n)Jets measurements at DØ , puts me in a unique position to lead this effort. The proposed program will have a dual focus: on DØ where the VBF analysis effort is mature and efforts of a postdoc will be required to bring the VBF W analysis to a paper, and at ATLAS where a graduate student will begin the effort. I therefore request funding for a student and a postdoc, as well as summer support for myself, for the four year duration of the grant proposal. I also request travel funds to facilitate interactions with my group, presentation at conferences, and a modest amount of money to purchase computing resources.

  4. Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W??? and Z??? Cross Sections

    E-Print Network [OSTI]

    Taylor, Frank E.

    A QCD analysis is reported of ATLAS data on inclusive W[superscript ±] and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the ...

  5. Measurement of the properties of the Higgs boson at ATLAS

    SciTech Connect (OSTI)

    Bristow, Timothy; Collaboration: ATLAS Collaboration

    2014-03-05

    An update on the Higgs boson search in the decay channels H???, H?ZZ{sup (*)}?4l, H?WW{sup (*)}?lvlv, H??{sup +}?{sup ?} and H?bb{sup ¯} at the ATLAS detector is presented. Proton-proton collision data recorded by the ATLAS experiment corresponding to an integrated luminosity of up to 25/fb at centre-of-mass energies of 7 and 8 TeV are used for these results. The latest combined and individual channel measurements of the mass, signal strength, spin and parity, coupling constants and Higgs boson production are reported. Results on the measurements of the properties of the Higgs boson are all consistent with the Standard Model.

  6. The ATLAS Event Service: A New Approach to Event Processing

    E-Print Network [OSTI]

    Calafiura, Paolo; The ATLAS collaboration; Guan, Wen; Maeno, Tadashi; Nilsson, Paul; Oleynik, Danila; Panitkin, Sergey; Tsulaia, Vakhtang; van Gemmeren, Peter; Wenaus, Torre

    2015-01-01

    The ATLAS Event Service (ES) implements a new fine grained approach to HEP event processing, designed to be agile and efficient in exploiting transient, short-lived resources such as HPC hole-filling, spot market commercial clouds, and volunteer computing. Input and output control and data flows, bookkeeping, monitoring, and data storage are all managed at the event level in an implementation capable of supporting ATLAS-scale distributed processing throughputs (about 4M CPU-hours/day). Input data flows utilize remote data repositories with no data locality or pre­staging requirements, minimizing the use of costly storage in favor of strongly leveraging powerful networks. Object stores provide a highly scalable means of remotely storing the quasi-continuous, fine grained outputs that give ES based applications a very light data footprint on a processing resource, and ensure negligible losses should the resource suddenly vanish. We will describe the motivations for the ES system, its unique features and capabi...

  7. Sharing ATLAS data and research with young students

    E-Print Network [OSTI]

    Pedersen, Maiken; The ATLAS collaboration; Bugge, Magnar Kopangen

    2015-01-01

    In recent years the International Masterclasses (IMC) featured the use of real experimental data as produced by the Large Hadron Collider (LHC) and collected by the detectors. We present ATLAS-based educational material using these data allowing high-school students to learn about properties of known particles and search for new phenomena. The ambition to bring to the “classrooms” important LHC discoveries is realised using the recent discovery of the Higgs boson. Approximately 10% of the ATLAS discovery data are made available for students to search for the Higgs boson: 2 fb?1 at 8 TeV for the Z path, and 1 fb?1 at 7 TeV for the W path, in the 2014 version of IMC. The Higgs study samples constitute one third of the total sample including Z, W and other low mass resonances. The educational material is tuned and expanded to follow LHC “heartbeats”.

  8. Experimental Tests of Neutron Shielding for the ATLAS Forward Region

    E-Print Network [OSTI]

    Pospísil, S; Cechák, T; Cermák, P; Jakubek, J; Kluson, J; Konícek, J; Kubasta, J; Linhart, V; Sinor, M; Leroy, C; Dolezal, Z; Leitner, R; Lukianov, G A; Soustruznik, K; Lokajícek, M; Némécek, S; Pálla, G; Sodomka, J

    1999-01-01

    Experimental tests devoted to the optimization of the neutron shielding for the ATLAS forward region were performed at the CERN-PS with a 4 GeV/c proton beam. Spectra of fast neutrons, slow neutrons and gamma rays escaping a block of iron (40$\\times$40$\\times$80 cm$^3$) shielded with different types of neutron and gamma shields (pure polyethylene - PE, borated polyethylene - BPE, lithium filled polyethylene - LiPE, lead, iron) were measured by means of plastic scintillators, a Bonner spectrometer, a HPGe detector and a slow neutron detector. Effectiveness of different types of shielding agaisnt neutrons and $\\gamma$-rays were compared. The idea of a segmented outer layer shielding (iron, BPE, iron, LiPE) for the ATLAS Forward Region was also tested.

  9. The ATLAS Trigger System: Ready for Run 2

    E-Print Network [OSTI]

    Czodrowski, Patrick; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger system has been used successfully for data collection in the 2009-2013 Run 1 operation cycle of the CERN Large Hadron Collider (LHC) at center-of-mass energies of up to 8 TeV. With the restart of the LHC for the new Run 2 data-taking period at 13 TeV, the trigger rates are expected to rise by approximately a factor of 5. This presentation gave a brief overview of the upgrades to the ATLAS trigger system that have been implemented during the LHC shutdown period in order to deal with the increased trigger rates while efficiently selecting the physics processes of interest. These upgrades include changes to the L1 calorimeter trigger, the introduction of a new L1 topological trigger module, improvements in the L1 muon system, and the merging of the previously two-level HLT system into a single processing farm.

  10. Improved ATLAS HammerCloud Monitoring for local Site Administration

    E-Print Network [OSTI]

    Boehler, Michael; The ATLAS collaboration; Hoenig, Friedrich; Legger, Federica; Sciacca, Francesco Giovanni; Mancinelli, Valentina

    2015-01-01

    Every day hundreds of tests are run on the Worldwide LHC Computing Grid for the ATLAS, and CMS experiments in order to evaluate the performance and reliability of the different computing sites. All this activity is steered, controlled, and monitored by the HammerCloud testing infrastructure. Sites with failing functionality tests are auto-excluded from the ATLAS computing grid, therefore it is essential to provide a detailed and well organized web interface for the local site administrators such that they can easily spot and promptly solve site issues. Additional functionality has been developed to extract and visualize the most relevant information. The site administrators can now be pointed easily to major site issues which lead to site blacklisting as well as possible minor issues that are usually not conspicuous enough to warrant the blacklisting of a specific site, but can still cause undesired effects such as a non-negligible job failure rate. This paper summarizes the different developments and optimiz...

  11. Improved ATLAS HammerCloud Monitoring for local Site Administration

    E-Print Network [OSTI]

    Boehler, Michael; The ATLAS collaboration; Hoenig, Friedrich; Legger, Federica

    2015-01-01

    Every day hundreds of tests are run on the Worldwide LHC Computing Grid for the ATLAS, CMS, and LHCb experiments in order to evaluate the performance and reliability of the different computing sites. All this activity is steered, controlled, and monitored by the HammerCloud testing infrastructure. Sites with failing functionality tests are auto-excluded from the ATLAS computing grid, therefore it is essential to provide a detailed and well organized web interface for the local site administrators such that they can easily spot and promptly solve site issues. Additional functionalities have been developed to extract and visualize the most relevant information. The site administrators can now be pointed easily to major site issues which lead to site blacklisting as well as possible minor issues that are usually not conspicuous enough to warrant the blacklisting of a specific site, but can still cause undesired effects such as a non-negligible job failure rate. This contribution summarizes the different developm...

  12. Preparation of Northern Mid-Continent Petroleum Atlas

    SciTech Connect (OSTI)

    Gerhard, Lee C.; Carr, Timothy R.; Watney, W. Lynn

    2003-02-24

    This report covers the fourth year of the Digital Petroleum Atlas (DPA) Project. The DPA is a longterm effort to develop a new methodology for efficient and timely access to the latest petroleum data and technology for the domestic oil and gas industry, research organizations and local governmental units. The DPA is a new and evolving approach to generating and publishing petroleum reservoir, field, play and basin studies.

  13. SUSY searches at the LHC with the ATLAS experiment

    ScienceCinema (OSTI)

    None

    2011-04-25

    First ATLAS searches for signals of Supersymmetry in proton-proton collisions at the LHC are presented. These searches are performed in various channels containing different lepton and jet multiplicities in the final states; the full data sample recorded in the 2010 LHC run, corresponding to an integrated luminosity of 35 pb-1, has been analysed. Limits on squarks and gluins are the most stringent to date.

  14. Combined Higgs Boson Property Measurements using the ATLAS Detector

    E-Print Network [OSTI]

    Rados, Petar Kevin; The ATLAS collaboration

    2015-01-01

    The combined measurements of the properties of the Higgs boson using the ATLAS detector and up to 25 fb-1 of 7 TeV and 8 TeV pp collision data collected in 2011 and 2012, are discussed. The results are obtained combining all channels measured in run 1. They include the mass, strengths of production and decay modes, couplings to fermions and bosons, spin and CP properties.

  15. Electrons in ATLAS: from Run1 to Run2

    E-Print Network [OSTI]

    Ezhilov, Alexey; The ATLAS collaboration

    2015-01-01

    An excellent performance of the electron reconstruction, identification and calibration is of vital importance both for precision measurements as well as for searches for new physics. This poster will present the techniques used for the reconstruction, identification and calibration of electrons in ATLAS, and will show the performance obtained at the end of Run1. If available, it will also present first results from Run2.

  16. Study of Vector Boson Fusion Higgs in Atlas-LHC

    E-Print Network [OSTI]

    Dimitris Varouchas

    2008-05-26

    Within the framework of Standard Model, the production mode of Higgs boson through the fusion of the vector bosons $W$ or $Z$ (Vector Boson Fusion) is one of the most important production mechanisms, providing a specific detection signature. A detailed study regarding this issue is being undergone for ATLAS detector in LHC and some general features of this analysis are being presented in this note emphasizing in the study of Central Jet Veto.

  17. Operation of the Upgraded ATLAS Level-1 Central Trigger System

    E-Print Network [OSTI]

    Glatzer, Julian Maximilian Volker; The ATLAS collaboration

    2015-01-01

    The ATLAS Level-1 Central Trigger (L1CT) system is a central part of ATLAS data-taking and has undergone a major upgrade for Run 2 of the LHC, in order to cope with the expected increase of instantaneous luminosity of a factor of 2 with respect to Run 1. The upgraded hardware offers more flexibility in the trigger decisions due to the double amount of trigger inputs and usable trigger channels. It also provides an interface to the new topological trigger system. Operationally - particularly useful for commissioning, calibration and test runs - it allows concurrent running of up to 3 different sub-detector combinations. In this contribution, we give an overview of the operational software framework of the L1CT system with particular emphasis of the configuration, controls and monitoring aspects. The software framework allows a consistent configuration with respect to the ATLAS experiment and the LHC machine, upstream and downstream trigger processors, and the data acquisition. Trigger and dead-time rates are m...

  18. Operation of the Upgraded ATLAS Level-1 Central Trigger System

    E-Print Network [OSTI]

    Glatzer, Julian Maximilian Volker; The ATLAS collaboration

    2015-01-01

    The ATLAS Level-1 Central Trigger (L1CT) system is a central part of ATLAS data-taking and has undergone a major upgrade for Run 2 of the LHC, in order to cope with the expected increase of instantaneous luminosity of a factor of 2 with respect to Run 1. The upgraded hardware offers more flexibility in the trigger decisions due to the double amount of trigger inputs and usable trigger channels. It also provides an interface to the new topological trigger system. Operationally - particularly useful for commissioning, calibration and test runs - it allows concurrent running of up to 3 different subdetector combinations. An overview of the operational software framework of the L1CT system with particular emphasis of the configuration, controls and monitoring aspects is given. The software framework allows a consistent configuration with respect to the ATLAS experiment and the LHC machine, upstream and downstream trigger processors, and the data acquisition. Trigger and dead-time rates are monitored coherently at...

  19. ATLAS Muon Spectrometer Upgrades for the High Luminosity LHC

    E-Print Network [OSTI]

    Valderanis, Chrysostomos; The ATLAS collaboration

    2015-01-01

    ATLAS Muon Spectrometer Upgrades for the High Luminosity LHC The luminosity of the LHC will increase up to 2x10^34 cm-2s-1 after the long shutdown in 2019 (phase-1 upgrade) and up to 7x10^34 cm-2s-1 after the long shutdown in 2025 (phase-2 upgrade). In order to cope with the increased particle fluxes, upgrades are envisioned for the ATLAS muon spectrometer. At phase-1, the current innermost stations of the ATLAS muon endcap tracking system (the Small Wheels) will be upgraded with 2x4-layer modules of Micromega detectors, sandwiched by two 4 layer modules of small strip Thin Gap Chambers on either side. Each 4-layer module of the so-called New Small Wheels covers a surface area of approximately 2 to 3 m2 for a total active area of 1200 m2 each for the two technologies. On such large area detectors, the mechanical precision (30 \\mu m along the precision coordinate and 80 \\mu m along the beam) is a key point and must be controlled and monitored along the process of construction and integration. The design and re...

  20. A Fast Hardware Tracker for the ATLAS Trigger System

    E-Print Network [OSTI]

    Mark S. Neubauer; for the ATLAS Collaboration

    2011-10-10

    In hadron collider experiments, triggering the detector to store interesting events for offline analysis is a challenge due to the high rates and multiplicities of particles produced. Maintaining high trigger efficiency for the physics we are most interested in while at the same time suppressing high rate physics from inclusive QCD processes is a difficult but important problem. It is essential that the trigger system be flexible and robust, with sufficient redundancy and operating margin. Providing high quality track reconstruction over the full ATLAS detector by the start of processing at LVL2 is an important element to achieve these needs. As the instantaneous luminosity increases, the computational load on the LVL2 system will significantly increase due to the need for more sophisticated algorithms to suppress backgrounds. The Fast Tracker (FTK) is a proposed upgrade to the ATLAS trigger system. It is designed to enable early rejection of background events and thus leave more LVL2 execution time by moving track reconstruction into a hardware system that takes massively parallel processing to the extreme. The FTK system completes global track reconstruction with near offline resolution shortly after the start of LVL2 processing by rapidly finding and fitting tracks in the inner detector for events passing LVL1 using pattern recognition from a large, pre-computed bank of possible hit patterns. We describe the FTK system design and expected performance in the areas of b-tagging, {\\tau}-tagging, and lepton isolation which play and important role in the ATLAS physics program.

  1. ATLAS TDAQ System Administration: evolution and re-design

    E-Print Network [OSTI]

    Ballestrero, Sergio; The ATLAS collaboration; Brasolin, Franco; Contescu, Alexandru Cristian; Dubrov, Sergei; Fazio, Daniel; Korol, Aleksandr; Lee, Christopher Jon; Scannicchio, Diana; Twomey, Matthew Shaun

    2015-01-01

    The ATLAS Trigger and Data Acquisition (TDAQ) system is responsible for the online processing of live data, streaming from the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. The online farm is composed of $\\sim 3000$ servers, processing the data readout from $\\sim 100$ million detector channels through multiple trigger levels. During the two years of the first Long Shutdown (LS1) there has been a tremendous amount of work done by the ATLAS TDAQ System Administrators, implementing numerous new software applications, upgrading the OS and the hardware, changing some design philosophies and exploiting the High Level Trigger farm with different purposes. The OS version has been upgraded to SLC6; for the largest part of the farm, which is composed by net booted nodes, this required a completely new design of the net booting system. In parallel, the migration to Puppet of the Configuration Management systems has been completed for both net booted and local booted hosts; the Post-Boot Scripts system and...

  2. Wind Atlas for Egypt A national database for wind resource assessment and

    E-Print Network [OSTI]

    Wind Atlas for Egypt A national database for wind resource assessment and wind power planning Niels G. Mortensen Wind Energy Department Risø National Laboratory MENAREC 3, Cairo, Egypt 12 June 2006 #12;Acknowledgements The "Wind Atlas for Egypt" is the result of a comprehensive team effort! · New

  3. POSTURE MATCHING AND ELASTIC REGISTRATION OF A MOUSE ATLAS TO SURFACE TOPOGRAPHY RANGE DATA

    E-Print Network [OSTI]

    Leahy, Richard M.

    -imaged mouse based only on the atlas data and the measured surface topography of the iPOSTURE MATCHING AND ELASTIC REGISTRATION OF A MOUSE ATLAS TO SURFACE TOPOGRAPHY RANGE DATA A. A Laboratory of Neuro Imaging, UCLA School of Medicine, Los Angeles, CA 90095, USA, 2 Department of Biomedical

  4. Integrating Brain Data Spatially: Spatial Data Infrastructure and Atlas Environment for Online

    E-Print Network [OSTI]

    Gupta, Amarnath

    Integrating Brain Data Spatially: Spatial Data Infrastructure and Atlas Environment for Online Federation and Analysis of Brain Images Ilya Zaslavsky1 , Haiyun He2 , Joshua Tran1 , Maryann E. Martone2 Numerous digital atlases of the brain have been developed for different species through the efforts

  5. NOAA Technical Memorandum OAR PMEL-121 ATLAS Module Temperature Bias Due to Solar

    E-Print Network [OSTI]

    NOAA Technical Memorandum OAR PMEL-121 ATLAS Module Temperature Bias Due to Solar Heating P.N. A. . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Temperature time series from a 1 m Seacat, NX Modules at 1 m and 10 m, and downwelling solar values for a given day. . 6 #12;iv Contents #12;ATLAS Module Temperature Bias Due to Solar Heating P.N. A

  6. THE UK ENERGY RESEARCH ATLAS: A TOOL FOR PRIORITISING AND PLANNING Prof Jim Skea

    E-Print Network [OSTI]

    THE UK ENERGY RESEARCH ATLAS: A TOOL FOR PRIORITISING AND PLANNING ENERGY R&D Prof Jim Skea UK Energy Research Centre1 ABSTRACT The UK Energy Research Centre has created an innovative "Energy Research Atlas" which maps out energy-related research, development and demonstration (RD&D) activities

  7. A Distributed Biomarker Atlas for Lung Research aiding the Discovery and Early Detection of Cancer Biomarkers

    E-Print Network [OSTI]

    Mattmann, Chris

    A Distributed Biomarker Atlas for Lung Research aiding the Discovery and Early Detection of Cancer Atlas software system that allows a researcher to correlate lung cancer patients with similar characteristics around regions of the lung in which their sample specimens including multiple types

  8. RICE UNIVERSITY Building a 3D Atlas of the Mouse Brain

    E-Print Network [OSTI]

    Ju, Tao

    RICE UNIVERSITY Building a 3D Atlas of the Mouse Brain by Tao Ju A Thesis Submitted in Partial, Texas April, 2005 #12;Building a 3D Atlas of the Mouse Brain Tao Ju Abstract Building and studying 3D representations of anatomical structures, such as the brain, plays an important role in modern biology and medical

  9. stellar populations of early-type galaxies in the ATLAS^^sample

    E-Print Network [OSTI]

    Bureau, Martin

    , F-69230 Saint Genis Laval; CNRS, UMR 5574; ENS de Lyon, France ^LaboratoireAIM, CEA-SaclaylDSM/IRFU/SAp the ATLAS^^ project and our first results on the stellar populations of galaxies in the ATLAS^^ sample based Early-type galaxies (ETGs) are stellar systems with no evidence of spiral arms and in many cases

  10. Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data

    E-Print Network [OSTI]

    Heinemann, Detlev

    (DEWI), Ebertstraße 96, D-26382 Wilhelmshaven, Germany Abstract The practice of using the European Wind Atlas and Wind Atlas Analysis and Application Programm (WAsP) for estimating the wind energy potential. This paper presents an objective approach to assess the wind energy potential which needs no assignment

  11. Building Plug-and-Play Smart Homes Using the Atlas Platform1

    E-Print Network [OSTI]

    Helal, Abdelsalam

    Building Plug-and-Play Smart Homes Using the Atlas Platform1 Raja Bose, Jeffrey King, Steven and describes how to use and program Atlas to build a smart space. The paper also presents several use cases, hme, helal}@cise.ufl.edu Abstract. Pervasive computing environments such as smart homes require

  12. Leakage radiation microscopy of surface plasmons launched by a nanodiamond-based tip

    E-Print Network [OSTI]

    Mollet, O; Drezet, A; Huant, S; 10.1016/j.diamond.2011.05.012

    2011-01-01

    Leakage-radiation microscopy of a thin gold film demonstrates the ability of an ensemble of fluorescent diamond nanoparticles attached onto the apex of an optical tip to serve as an efficient near-field surface-plasmon polariton launcher. The implementation of the nanodiamond-based tip in a near-field scanning optical microscope will allow for an accurate control on the launching position, thereby opening the way to scanning plasmonics.

  13. Launching the Next Wave of Clean Fossil Energy Innovation | Department of

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPA PublicLED ADOPTION REPORTLand and FacilityEnergy Launching

  14. Qualitative risk assessment of Sandia`s rocket preparation and launch facility at Barking Sands, Kauai

    SciTech Connect (OSTI)

    Mahn, J.A.

    1997-12-31

    This paper demonstrates the application of a qualitative methodology for performing risk assessments using the consequence and probability binning criteria of DOE Order 5481.1B. The particular application that is the subject of this paper is a facility risk assessment conducted for Sandia National Laboratories` Kauai Test Facility (KTF). The KTF is a rocket preparation and launch facility operated by Sandia National Laboratories for the Department of Energy and is located on the US Navy`s Pacific Missile Range Facility (PMRF) at Barking Sands on the western side of the island of Kauai, Hawaii. The KTF consists of an administrative compound and main launch facility located on the north end of the PMRF, as well as the small Kokole Point launch facility located on the south end of the PMRF. It is classified as a moderate hazard facility in accordance with DOE Order 5481.1B. As such, its authorization basis for operations necessitates a safety/risk assessment. This paper briefly addresses the hazards associated with KTF operations and the accidents selected for evaluation, introduces the principal elements of the accident assessment methodology, presents analysis details for two of the selected accidents, and provides a summary of results for all of the accidents evaluated.

  15. Optimization of warehouse operations and transport risk mitigation for disposable bioreactor bags to support launch of Amgen Singapore Manufacturing

    E-Print Network [OSTI]

    Yang, Maxine

    2015-01-01

    A strategic imperative for Amgen is to increase the number of patients that have access to the company's lifesaving medicines. As part of this goal, Amgen is launching a new manufacturing site in Singapore (ASM). Reliability ...

  16. Method and system for determining the torque required to launch a vehicle having a hybrid drive-train

    DOE Patents [OSTI]

    Hughes, Douglas A.

    2006-04-04

    A method and system are provided for determining the torque required to launch a vehicle having a hybrid drive-train that includes at least two independently operable prime movers. The method includes the steps of determining the value of at least one control parameter indicative of a vehicle operating condition, determining the torque required to launch the vehicle from the at least one determined control parameter, comparing the torque available from the prime movers to the torque required to launch the vehicle, and controlling operation of the prime movers to launch the vehicle in response to the comparing step. The system of the present invention includes a control unit configured to perform the steps of the method outlined above.

  17. NationalAsthmaControlInitiative The National Heart, Lung, and Blood Institute Launches New Effort to Put

    E-Print Network [OSTI]

    Shen, Jun

    NationalAsthmaControlInitiative The National Heart, Lung, and Blood Institute Launches New Effort and Prevention Program (NAEPP), coordinated by the National Heart, Lung, and Blood Institute (NHLBI). The NACI

  18. FELIX: the detector readout upgrade of the ATLAS experiment

    E-Print Network [OSTI]

    Ryu, Soo; The ATLAS collaboration

    2015-01-01

    After the Phase-I upgrade and onward, the Front-End Link eXchange(FELIX) system will be the interface between the readout system and the detector front-end electronics and trigger electronics at the ATLAS experiment. FELIX will function as a gateway to a commodity switched network which will use standard technologies (Ethernet or Infiniband) to communicate with data collecting and processing components. In this talk the system architecture of FELIX will be described and the testing results of the FELIX demonstrator will be presented

  19. Creating A Galactic Plane Atlas With Amazon Web Services

    E-Print Network [OSTI]

    Berriman, G Bruce; Good, John; Juve, Gideon; Kinney, Jamie; Merrihew, Ann; Rynge, Mats

    2013-01-01

    This paper describes by example how astronomers can use cloud-computing resources offered by Amazon Web Services (AWS) to create new datasets at scale. We have created from existing surveys an atlas of the Galactic Plane at 16 wavelengths from 1 {\\mu}m to 24 {\\mu}m with pixels co-registered at spatial sampling of 1 arcsec. We explain how open source tools support management and operation of a virtual cluster on AWS platforms to process data at scale, and describe the technical issues that users will need to consider, such as optimization of resources, resource costs, and management of virtual machine instances.

  20. Radiation damage monitoring of the ATLAS pixel detector

    E-Print Network [OSTI]

    Seidel, Sally; The ATLAS collaboration

    2015-01-01

    A measurement has been made of the radiation damage incurred by the ATLAS Pixel Detector barrel silicon modules from the beginning of operations through the end of 2012. This translates to hadronic fluence received over the full period of operation at energies up to and including 8 TeV. The measurement is based on a per-module record of the silicon sensor leakage current. The results are presented as a function of integrated luminosity and compared to predictions by the Hamburg Model. This information can be used to predict limits on the lifetime of the Pixel Detector due to current, for various operating scenarios.

  1. METALLURGICAL CHARACTERIZATION OF ATLAS CYLINDRICALLY CONVERGENT SPALLATION EXPERIMENTS.

    SciTech Connect (OSTI)

    Thissell, W. R.; Cerreta, E. K.; Anderson, W. A.; Atchison, W. A.; Cochrane, J. C.; Kaul, Ann M.; Keinigs, R. K.; Ladish, J. S.; Lindemuth, I. R.; Oro, D. M.; Paisley, D.; G. Rodriguez,; Salazar, M. A.; Stokes, J. L.; Taylor, A. J.; Tonks, D. L.

    2003-07-18

    The microstructural distribution and nature of damage from three different cylindrically convergent spallation experiments performed on the pulsed power machine named Atlas are presented. Longitudinal momentum trapping was used to minimize the influence of release waves and thereby decrease the dimensionality of the experiments. Two of the experiments involved soft capture of the spalled piece. The material used is a proprietary directionally cast Al alloy with a mostly equiaxed grain morphology and essentially random texture in the region of spallation. The damage was most distributed in the lowest impact velocity shot and became progressively more narrow with increasing impact velocity. The effectiveness of the momentum trap design increased with increasing impact velocity.

  2. Evolution of the Architecture of the ATLAS Metadata Interface (AMI)

    E-Print Network [OSTI]

    Odier, Jerome; The ATLAS collaboration; Fulachier, Jerome; Lambert, Fabian

    2015-01-01

    The ATLAS Metadata Interface (AMI) is now a mature application. Over the years, the number of users and the number of provided functions has dramatically increased. It is necessary to adapt the hardware infrastructure in a seamless way so that the quality of service remains high. We describe the evolution from the beginning of the application life, using one server with a MySQL backend database, to the current state in which a cluster of virtual machines on the French Tier 1 cloud at Lyon, an Oracle database also at Lyon, with replication to Oracle at CERN and a back-up server are used.

  3. Top quark pair production cross section at LHC in ATLAS

    E-Print Network [OSTI]

    John David Morris

    2014-10-24

    Measurements of the top quark production cross section in proton-proton collisions with the ATLAS detector at the Large Hadron Collider are presented. The measurements require no, one or two electrons or muons in the final state (single lepton, dilepton, hadronic channel). In addition, the decay modes with tau leptons are tested (channels with tau leptons). The main focus is on measurements of differential spectra of $t\\bar{t}$ final states, in particular, measurements that are able to constrain the modelling of additional parton radiation like the jet multiplicity distribution.

  4. Searches for 3rd generation partners in ATLAS and CMS

    E-Print Network [OSTI]

    Tripiana, Martin; The ATLAS collaboration

    2015-01-01

    Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Top or bottom squarks with masses of a few hundred GeV can also give rise to large direct pair production rates at the LHC. The talk presents recent ATLAS and CMS results from searches for direct stop and sbottom pair production, using 20/fb of 8 TeV pp collision data, and prospects for 13 TeV Run-2 data are also included.

  5. Argonne Physics Division - ATLAS - PAC December 14-15, 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D SFederal8823 RevisionApril 22-23, 2011 ATLAS PAC

  6. Argonne Physics Division - ATLAS - PAC December 14-15, 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D SFederal8823 RevisionApril 22-23, 2011 ATLAS PACNovember

  7. Argonne Physics Division - ATLAS - PAC January 13-14, 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D SFederal8823 RevisionApril 22-23, 2011 ATLAS

  8. Global Atlas for Solar and Wind Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEniaElectric JumpAtlas for Solar and Wind Energy Jump to:

  9. Wind Energy Atlas of Brazil | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to: navigation, search Name: Wilson andAmerica IncAtlas of

  10. ATLAS diboson excesses from the stealth doublet model (Journal Article) |

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby a contractor ofvarDOE PAGES ATLAS diboson excesses from

  11. European Atlas of Soil Biodiversity | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop,Erosion Flume Jump to:EthanolEudoraAtlas of Soil

  12. Wind Energy Resource Atlas of Armenia (CD-ROM)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA?Resource Atlas of Armenia (CD-ROM)

  13. Wind Energy Resource Atlas of the Dominican Republic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA?Resource Atlas of Armenia

  14. ATLAS Enhanced Capabilities and Questions | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3 Racetracks25CommunicationAPBFARPA-e OPENASAP &ATLAS

  15. Laser/matter interactions by laser-launched plates and direct laser shocks

    SciTech Connect (OSTI)

    Paisley, Dennis L.; Swift, D. C.; Kopp, R. A.; Montgomery, D. S.; Johnson, R. P.; Munson, C. P.; Letzring, S. A.; Niemczura, J. G.

    2003-01-01

    Explosives, gas guns, laser-launched flyer plates, and direct laser-irradiation can be used to generate shocks and high-stress in materials. Each method has a unique diameter and thickness of shock that can be generated. In past years, small laboratory lasers have been used to launch flyer plates 2 - 200-pm thick to terminal velocities 0.1 to 5 k d s . Over the past few years we have been using our TRIDENT laser facility (1kJ in 0.2 to 2ps) to accelerate larger diameter (8 mm) and thicker (0.1 - 1.5 mm) flyer plates. These larger diameters and thicker one-dimensional plates more closely compliment traditional experimental methods such as gas guns. The 8-mm diameter and 1-mm thick flyer plates can impart shocks in metals for constitutive dynamic property measurements. The versatility of laser-driven plates permits spatial and temporal profiles of the flyer plate impact on sample targets. LASNEX models and parameters of the laser drive can be used to optimize optical coupling efficiency. The flyer plate launch, acceleration, terminal velocity, and, depending on the experiment, flyer plate impact on to target materials are recorded using point-interferometry (VISAR), and line-imaging interferometry. These high speed optical and laser experimental methods will be described along with ancillary methods, and material data. Constitutive properties of bulk materials, rate effects, and grain size and/or orientation have been studied for several metals including copper, beryllium, gold, and some alloys.

  16. The C-RORC PCIe Card and its Application in the ALICE and ATLAS Experiments

    E-Print Network [OSTI]

    Engel, H; Costa, F; Crone, G J; Eschweiler, D; Francis, D; Green, B; Joos, M; Kebschull, U; Kiss, T; Kugel, A; Panduro Vasquez, J G; Soos, C; Teixeira-Dias, P; Tremblet, L; Vande Vyvre, P; Vandelli, W; Vermeulen, J C; Werner, P; Wickens, F J

    2015-01-01

    The ALICE and ATLAS DAQ systems read out detector data via point-to-point serial links into custom hardware modules, the ALICE RORC and ATLAS ROBIN. To meet the increase in operational requirements both experiments are replacing their respective modules with a new common module, the C-RORC. This card, developed by ALICE, implements a PCIe Gen 2 x8 interface and interfaces to twelve optical links via three QSFP transceivers. This paper presents the design of the C-RORC, its performance and its application in the ALICE and ATLAS experiments.

  17. First Results from the Online Radiation Dose Monitoring System in ATLAS experiment

    E-Print Network [OSTI]

    Mandi?, I; The ATLAS collaboration; Deliyergiyev, M; Gorišek, A; Kramberger, G; Mikuž, M; Franz, S; Hartert, J; Dawson, I; Miyagawa, P S; Nicolas, L

    2011-01-01

    High radiation doses which will accumulate in components of ATLAS experiment during data taking will cause damage to detectors and readout electronics. It is therefore important to continuously monitor the doses to estimate the level of degradation caused by radiation. Online radiation monitoring system measures ionizing dose in SiO2 and fluences of 1-MeV(Si) equivalent neutrons and thermal neutrons at several locations in ATLAS detector. In this paper measurements collected during two years of ATLAS data taking are presented and compared to predictions from radiation background simulations.

  18. A Fast hardware tracker for the ATLAS Trigger

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. To achieve high background rejection while maintaining good efficiency for interesting physics signals, sophisticated algorithms are needed which require extensive use of tracking information. The Fast TracKer (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform track-finding at 100 kHz and based on a mixture of advanced technologies. Modern, powerful Field Programmable Gate Arrays (FPGA) form an important part of the system architecture, and the combinatorial problem of pattern recognition is solved by ~8000 standard-cell ASICs named Associative Memories. The availability of the tracking and subsequent vertex information within a short latency ensures robust selections and allows improved trigger performance for the most difficult sign...

  19. A Fast hardware Tracker for the ATLAS Trigger system

    E-Print Network [OSTI]

    Pandini, Carlo Enrico; The ATLAS collaboration

    2015-01-01

    The trigger system at the ATLAS experiment is designed to lower the event rate occurring from the nominal bunch crossing at 40 MHz to about 1 kHz for a designed LHC luminosity of 10$^{34}$ cm$^{-2}$ s$^{-1}$. After a very successful data taking run the LHC is expected to run starting in 2015 with much higher instantaneous luminosities and this will increase the load on the High Level Trigger system. More sophisticated algorithms will be needed to achieve higher background rejection while maintaining good efficiency for interesting physics signals, which requires a more extensive use of tracking information. The Fast Tracker (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to perform full-scan track-finding at the event rate of 100 kHz. FTK is a dedicated processor based on a mixture of advanced technologies. Modern, powerful, Field Programmable Gate Arrays form an important part of the system architecture, and the combinatorial problem of pattern r...

  20. ATLAS experimental equipment. November 1983 workshop and present status

    SciTech Connect (OSTI)

    Not Available

    1984-01-01

    The latest workshop was held in November 1983 with the purpose of presenting an overview of the experimental stations planned for ATLAS, describing the current status of each individual apparatus, soliciting final input on devices of the first phase (i.e. on those that will be ready when beams from ATLAS become available in late Spring of 1985), and discussing and collecting new ideas on equipment for the second phase. There were short presentations on the status of the various projects followed by informal discussions. The presentations mainly concentrated on new equipment for target area III, but included some descriptions of current apparatus in target area II that might also be of interest for experiments with the higher-energy beams available in area III. The meeting was well attended with approx. 50 scientists, approximately half of them from institutions outside Argonne. The present proceedings summarize the presentations and discussions of this one-day meeting. In addition we take the opportunity to include information about developments since this meeting and an update of the current status of the various experimental stations. We would like to emphasize again that outside-user input is extremely welcome.

  1. Cryogenic Characteristics of the ATLAS Barrel Toroid Superconducting Magnet

    E-Print Network [OSTI]

    Pengo, R; Delruelle, N; Pezzetti, M; Pirotte, O; Passardi, Giorgio; Dudarev, A; ten Kate, H

    2008-01-01

    ATLAS, one of the experiments of the LHC accelerator under commissioning at CERN, is equipped with a large superconducting magnet the Barrel Toroid (BT) that has been tested at nominal current (20500 A). The BT is composed of eight race-track superconducting coils (each one weights about 45 tons) forming the biggest air core toroidal magnet ever built. By means of a large throughput centrifugal pump, a forced flow (about 10 liter/second at 4.5 K) provides the indirect cooling of the coils in parallel. The paper describes the results of the measurements carried out on the complete cryogenic system assembled in the ATLAS cavern situated 100 m below the ground level. The measurements include, among other ones, the static heat loads, i.e., with no or constant current in the magnet, and the dynamic ones, since additional heat losses are produced, during the current ramp-up or slow dump, by eddy currents induced on the coil casing.

  2. Real-Time Flavor Tagging Algorithms in ATLAS

    E-Print Network [OSTI]

    Hetherly, Jeffrey Wayne; The ATLAS collaboration; Zivkovic, Lidija

    2015-01-01

    In high-energy physics experiments, online selection is crucial to select interesting collisions from the large data volume. ATLAS b-jet triggers are designed to identify heavy-flavour content in real-time and provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets, while retaining a high efficiency on selecting b-jets and maintaining affordable trigger rates without raising jet energy thresholds. This results in a challenging computing task, as tracks and their corresponding vertices must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly adverse pile-up conditions. We present an overview of the ATLAS strategy for online b-jet selection for the LHC Run 2, including the use of novel methods and sophisticated algorithms designed to face the above mentioned challenges. A f...

  3. The ATLAS Trigger System: Ready for Run-2

    E-Print Network [OSTI]

    Maeda, Junpei; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware Level-1 (L1) and a software based high-level trigger (HLT) that reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of a few hundred Hz. During the next data-taking period starting in 2015 (Run-2) the LHC will operate at a centre-of-mass energy of about 13 TeV resulting in roughly five times higher trigger rates. We will briefly review the ATLAS trigger system upgrades that were implemented during the shutdown, allowing us to cope with the increased trigger rates while maintaining or even improving our efficiency to select relevant physics processes. This includes changes to the L1 calorimeter and muon trigger system, the introduction of a new L1 topological trigger module and the merging of the previously two-level HLT system into a single event filter fa...

  4. The ATLAS Trigger System - Ready for Run-2

    E-Print Network [OSTI]

    Backes, Moritz; The ATLAS collaboration

    2015-01-01

    The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware based Level-1 (L1) and a software based high-level trigger (HLT) that reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of a few hundred Hz. During the course of the ongoing Run-2 data-taking campaign at 13 TeV centre-of-mass energy the trigger rates will be approximately 5 times higher compared to Run-1. In these proceedings we briefly review the ATLAS trigger system upgrades that were implemented during the shutdown, allowing us to cope with the increased trigger rates while maintaining or even improving our efficiency to select relevant physics processes. This includes changes to the L1 calorimeter and muon trigger system, the introduction of a new L1 topological trigger subsystem and the merging of the previously two-level HLT system into a single ev...

  5. Design and performance of the ATLAS jet trigger system

    E-Print Network [OSTI]

    Tavares Delgado, Ademar; The ATLAS collaboration

    2015-01-01

    The CERN Large Hadron Collider is the biggest and most powerful particle collider made by man. It produces up to 40 million proton-proton collisions per second at unprecedented energies to explore the fundamental laws and properties of Nature. The ATLAS experiment is one of the detectors that analyse and record these collisions. It generates a huge data volume that has to be reduced before it can be permanently stored. The event selection is made by the ATLAS trigger system, which reduces the data volume by a factor of 10^{5}. The trigger system has to be highly configurable in order to adapt to changing running conditions and maximize the physics output whilst keeping the output rate under control. A particularly interesting pattern generated during collisions consists of a collimated spray of particles, known as a hadronic jet. To retain the interesting jets and efficiently reject the overwhelming background, optimal jet energy resolution is needed. Therefore the Jet trigger software requires CPU-intensive ...

  6. ATLAS Jet Trigger Update for the LHC Run II

    E-Print Network [OSTI]

    Tavares Delgado, Ademar; The ATLAS collaboration

    2015-01-01

    The CERN Large Hadron Collider is the biggest and most powerful particle collider ever built. It produces up to 40 million proton-proton collisions per second at unprecedented energies to explore the fundamental laws and properties of Nature. The ATLAS experiment is one of the detectors that analyses and records these collisions. It generates dozens of GB/s of data that has to be reduced before it can be permanently stored, the event selection is made by the ATLAS trigger system, which reduces the data volume by a factor of 10^5 . The trigger system has to be highly configurable in order to adapt to changing running conditions and maximize the physics output whilst keeping the output rate under control. A particularly interesting pattern generated during collisions consists of a collimated spray of particles, known as a hadronic jet. To retain the interesting jets and efficiently reject the overwhelming background, optimal jet energy resolution is needed. Therefore the Jet trigger software requires CPU-intens...

  7. Potential optimisation of the ATLAS reconstruction geometry description.

    E-Print Network [OSTI]

    Andrews, Holly

    2015-01-01

    The offline reconstruction software of high energy physics experiments often uses a simplified geometry and material model in order to speed up the process of material effect integration within the event reconstruction. This geometry model is also often used for fast simulation purposes, in ATLAS for the fast track simulation FATRAS. As part of a 12 week summer project undertaken at CERN, the use of material property maps within the FATRAS software were explored. A new material properties map was developed that relies on less data storage, allowing for a higher level of geometric properties to be stored over a greater range of the geometry. This is done by compressing to an acceptable memory level. A new manipulator tool was also created that is able to correct the quantity of material assigned to individual layers within the tracking geometry via an array of scaling factors for each layer, which leads to more accuracy in reconstruction parameters. This new tool has been developed within the ATLAS offline fra...

  8. Launching Cosmic ray-driven Outflows from the magnetized interstellar medium

    E-Print Network [OSTI]

    Girichidis, Philipp; Walch, Stefanie; Hanasz, Michal; Mac Low, Mordecai-Mark; Ostriker, Jeremiah P; Gatto, Andrea; Peters, Thomas; Wünsch, Richard; Glover, Simon C O; Klessen, Ralf S; Clark, Paul C; Baczynski, Christian

    2015-01-01

    We present a hydrodynamical simulation of the turbulent, magnetized, supernova-driven interstellar medium (ISM) in a stratified box that dynamically couples the injection and evolution of cosmic rays (CRs) and a self-consistent evolution of the chemical composition. CRs are treated as a relativistic fluid in the advection-diffusion approximation. The thermodynamic evolution of the gas is computed using a chemical network that follows the abundances of H+, H, H2, CO, C+, and free electrons and includes (self-)shielding of the gas and dust. We find that CRs perceptibly thicken the disk with the heights of 90% (70%) enclosed mass reaching ~1.5 kpc (~0.2 kpc). The simulations indicate that CRs alone can launch and sustain strong outflows of atomic and ionized gas with mass loading factors of order unity, even in solar neighbourhood conditions and with a CR energy injection per supernova (SN) of 10^50 erg, 10% of the fiducial thermal energy of a SN. The CR-driven outflows have moderate launching velocities close t...

  9. Method And Apparatus For Launching Microwave Energy Into A Plasma Processing Chamber

    DOE Patents [OSTI]

    DOUGHTY, FRANK C.; [et al

    2001-05-01

    A method and apparatus for launching microwave energy to a plasma processing chamber in which the required magnetic field is generated by a permanent magnet structure and the permanent magnet material effectively comprises one or more surfaces of the waveguide structure. The waveguide structure functions as an impedance matching device and controls the field pattern of the launched microwave field to create a uniform plasma. The waveguide launcher may comprise a rectangular waveguide, a circular waveguide, or a coaxial waveguide with permanent magnet material forming the sidewalls of the guide and a magnetization pattern which produces the required microwave electron cyclotron resonance magnetic field, a uniform field absorption pattern, and a rapid decay of the fields away from the resonance zone. In addition, the incorporation of permanent magnet material as a portion of the waveguide structure places the magnetic material in close proximity to the vacuum chamber, allowing for a precisely controlled magnetic field configuration, and a reduction of the amount of permanent magnet material required.

  10. Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC

    E-Print Network [OSTI]

    Taylor, Frank E.

    Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this Letter a search is performed at the ATLAS experiment for ...

  11. Sujet de thse Approche discrte pour la constitution d'un atlas statistique de formes

    E-Print Network [OSTI]

    Wolf, Christian

    'analyse de dos scoliotiques. [1] Two dimensional discrete statistical shape models construction. B Boukhriss morphing: Application to medical atlas construction. B Boukhriss, S Miguet, L Tougne. JETIM, Algeria 2006

  12. Search for a high mass neutral Higgs boson using the ATLAS detector

    E-Print Network [OSTI]

    Cree, Graham; The ATLAS collaboration

    2015-01-01

    The results of searches for high mass Higgs bosons decaying to diboson (ZZ,WW,yy) final states by the ATLAS experiment are reported. In absence of the presence of a signal in the data, exclusion limits are presented.

  13. Minimum Bias Measurements with the ATLAS Detector at the CERN Large Hadron Collider

    E-Print Network [OSTI]

    Leyton, Michael A.

    2009-01-01

    Pixel DCS Hardware. Technical Report ATL-IP- CD-0002, CERN,ATLAS Pixel Detector. Technical Report ATL-IP-QA-0026, CERN,Switzerland, 1998. Technical Report BIBLIOGRAPHY [10] LHCb

  14. Publishing history and development of school atlases and British geography, c.1870–c.1930 

    E-Print Network [OSTI]

    McDougall, Julie

    2013-07-01

    My concern in this thesis is with the production of British school atlases between 1870 and 1930. I interpret this particular genre of map and book through the rich resource of the Bartholomew Archive, which holds the ...

  15. "Vision and love!": encoding jouissance in Shelley's Alastor, "The Witch of Atlas", and Epipsychidion 

    E-Print Network [OSTI]

    Gladden, Samuel Lyndon

    1992-01-01

    "VISION AND LOVE!": ENCODING JOUISSANCE IN SHELLEY' S ALASTOR, "THE WITCH OF ATLAS, " AND EPIPS3'CHIDIOlV A Thesis by SAMUEL LYNDON GLADDEN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF ARTS August 1992 Major Subject: English "VISION AND LOVE!": ENCODING JOUISSANCE IN SHELLEY' S ALASTOR, "THE WITCH OF ATLAS, " AND EPIPSYCHIDION A Thesis by SAMUEL LYNDON GLADDEN Approved as to style and content...

  16. ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD

    E-Print Network [OSTI]

    Fukunaga, Chikara

    ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD Version 0 June,2000 1 Hi-pT ASIC Design in every block. There may be, therefore, maximum six hi-pT tracks found by a chip if each chip find-Packard G-link protocol. #12;ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD Version 0 June,2000 2

  17. Discovery Potential of the Standard Model Higgs Boson Through H -> WW Decay Mode with the ATLAS Detector at LHC

    E-Print Network [OSTI]

    Hai-Jun Yang; for the ATLAS Collaboration

    2009-10-01

    We report results of a study of the Standard Model Higgs boson discovery potential through the W-pair leptonic decay modes with the ATLAS detector at LHC at 14 TeV center-of-mass energy. We used MC samples with full detector simulation and reconstruction of the ATLAS experiment to estimate the ATLAS detection sensitivity for the reaction of pp -> H -> WW -> e\

  18. Dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job

    DOE Patents [OSTI]

    Budnik, Thomas A. (Rochester, MN); Knudson, Brant L. (Rochester, MN); Megerian, Mark G. (Rochester, MN); Miller, Samuel J. (Rochester, MN); Stockdell, William M. (Byron, MN)

    2012-03-20

    Methods, systems, and products for dynamically reassigning a connected node to a block of compute nodes for re-launching a failed job that include: identifying that a job failed to execute on the block of compute nodes because connectivity failed between a compute node assigned as at least one of the connected nodes for the block of compute nodes and its supporting I/O node; and re-launching the job, including selecting an alternative connected node that is actively coupled for data communications with an active I/O node; and assigning the alternative connected node as the connected node for the block of compute nodes running the re-launched job.

  19. Wind energy resource atlas. Volume 7. The south central region

    SciTech Connect (OSTI)

    Edwards, R.L.; Graves, L.F.; Sprankle, A.C.; Elliott, D.L.; Barchet, W.R.; George, R.L.

    1981-03-01

    This atlas of the south central region combines seven collections of wind resource data: one for the region, and one for each of the six states (Arkansas, Kansas, Louisiana, Missouri, Oklahoma, and Texas). At the state level, features of the climate, topography, and wind resource are discussed in greater detail than that provided in the regional discussion, and the data locations on which the assessment is based are mapped. Variations, over several time scales, in the wind resource at selected stations in each state are shown on graphs of monthly average and interannual wind speed and power, and hourly average wind speed for each season. Other graphs present speed, direction, and duration frequencies of the wind at these locations.

  20. The ATLAS Data Flow System for Run 2

    E-Print Network [OSTI]

    Kazarov, Andrei; The ATLAS collaboration

    2015-01-01

    After its first shutdown, the LHC will provide pp collisions with increased luminosity and energy. In the ATLAS experiment, the Trigger and Data Acquisition (TDAQ) system has been upgraded to deal with the increased event rates. The Data Flow (DF) element of the TDAQ is a distributed hardware and software system responsible for buffering and transporting event data from the readout system to the High Level Trigger (HLT) and to the event storage. The DF has been reshaped in order to profit from the technological progress and to maximize the flexibility and efficiency of the data selection process. The updated DF is radically different from the previous implementation both in terms of architecture and expected performance. The pre-existing two level software filtering, known as L2 and the Event Filter, and the Event Building are now merged into a single process, performing incremental data collection and analysis. This design has many advantages, among which are: the radical simplification of the architecture, ...

  1. ATLAS DISCOVERY POTENTIAL FOR A HEAVY CHARGED HIGGS BOSON.

    SciTech Connect (OSTI)

    ASSAMAGAN,K.A.; COADOU,Y.; DEANDREA,A.

    2002-02-01

    The sensitivity of the ATLAS detector to the discovery of a heavy charged Higgs boson is presented. Assuming a heavy SUSY spectrum, the most promising channels above the top quark mass are H{sup {+-}} {yields} tb and h{sup {+-}} {yields} {tau}{sup {+-}}{nu}{sub {tau}} which provide coverage in the low and high tan {beta} regions up to {approx} 600 GeV. The achievable precisions on the charged Higgs mass and tan {beta} determination are also discussed. The H{sup {+-}} {yields} W{sup {+-}}h{sup 0} channel, though restricted to a small MSSM parameter space, shows a viable signal in NMSSM where the parameter space is less constrained. The observation of the channel H{sup -} {yields} {tau}{sub L}{sup -} {nu}{sub {tau}} + c.c. may constitute a distinctive evidence for models with singlet neutrinos in large extra dimensions.

  2. Calibration Analysis Software for the ATLAS Pixel Detector

    E-Print Network [OSTI]

    Stramaglia, Maria Elena; The ATLAS collaboration

    2015-01-01

    The calibration of the ATLAS Pixel detector at LHC fulfils two main purposes: to tune the front-end configuration parameters for establishing the best operational settings and to measure the tuning performance through a subset of scans. An analysis framework has been set up in order to take actions on the detector given the outcome of a calibration scan (e.g. to create a mask for disabling noisy pixels). The software framework to control all aspects of the Pixel detector scans and analyses is called Calibration Console. The introduction of a new layer, equipped with new Front End-I4 Chips, required an update the Console architecture. It now handles scans and scans analyses applied together to chips with different characteristics. An overview of the newly developed Calibration Analysis Software will be presented, together with some preliminary result.

  3. Wind energy resource atlas. Volume 10. Alaska region

    SciTech Connect (OSTI)

    Wise, J.L.; Wentink, T. Jr.; Becker, R. Jr.; Comiskey, A.L.; Elliott, D.L.; Barchet, W.R.; George, R.L.

    1980-12-01

    This atlas of the wind energy resource is composed of introductory and background information, a regional summary of the wind resource, and assessments of the wind resource in each subregion of Alaska. Background is presented on how the wind resource is assessed and on how the results of the assessment should be interpreted. A description of the wind resource on a state scale is given. The results of the wind energy assessments for each subregion are assembled into an overview and summary of the various features of the Alaska wind energy resource. An outline to the descriptions of the wind resource given for each subregion is included. Assessments for individual subregions are presented as separate chapters. The subregion wind energy resources are described in greater detail than is the Alaska wind energy resource, and features of selected stations are discussed. This preface outlines the use and interpretation of the information found in the subregion chapters.

  4. b-Tagging Algorithms and their Performance at ATLAS

    E-Print Network [OSTI]

    Marc Lehmacher

    2008-11-04

    The ability to identify jets containing B hadrons is important for the high-pT physics program of a general-purpose experiment such as ATLAS. b-tagging is in particular useful for selecting very pure top quark samples, for studying standard model or supersymmetric Higgs bosons which couple preferably to heavy objects, for vetoing backgrounds for several physics channels and finally for searching for new physics beyond the standard model like supersymmetric particles or heavy gauge bosons. After a review of the algorithms used to identify b-jets, their anticipated performance is discussed as well as the impact of selected critical ingredients such as residual misalignments in the tracker. The prospects to measure the b-tagging performance in the first few hundreds pb-1 of data with di-jet events as well as ttbar events are presented. Finally three different physics use cases of b-tagging are summarised.

  5. ATLAS strip detector upgrade for the HL-LHC

    E-Print Network [OSTI]

    Liang, Zhijun; The ATLAS collaboration

    2015-01-01

    From 2024, the HL-LHC will provide unprecedented pp luminosities to ATLAS, resulting in an additional integrated luminosity of around 2500 fb?1 over ten years. To withstand the much harsher radiation and occupancy conditions of the HL-LHC necessitates a complete replacement of the present Inner detector. The new all-silicon tracker design is driven by the performance requirements that cannot be met by the present Inner detector. The sensors are of finer granularity than the existing tracker, to meet the challenges of very high pile-up and to be able to reconstruct tracks in the core of multi-TeV jets. In addition, the replacement tracker has to be much more radiation hard and the readout links need to provide much greater bandwidth. Present ideas and solutions for the strip detector and current research and development program will be discussed in this talk.

  6. New physics searches with B mesons at the ATLAS experiment

    E-Print Network [OSTI]

    Nooney, Tamsin; The ATLAS collaboration

    2015-01-01

    The large amount of Heavy Flavour data collected by the ATLAS experiment is potentially sensitive to New Physics, which may be found in the mixing of B meson states, or through processes that are naturally suppressed in the Standard Model. We present the most recent results on the measurement of the decay of the $B_{s}$ into $J/\\psi$ $\\phi$ based on full data collected in LHC Run-1 and with updated flavour tagging improving the accuracy in the CP-violating phase $\\phi_{s}$. We also present the measurement of the decay time difference in the $B_{d}$ system. The most recent results on the search for the rare decay $B_{s}$ ($B^{0}$) $\\rightarrow$ $\\mu^{+}$ $\\mu^{-}$ are presented as well as results on the angular distribution parameters $A_{FB}$ and $F_{L}$ describing the decay $B_{d}$ $\\rightarrow$ $K^{*}\\mu^{+}\\mu^{-}$ $\\rightarrow$ $K^{+}\\pi^{-} \\mu^{+} \\mu^{-}$.

  7. 2TeV Higgs boson and ATLAS diboson excess

    E-Print Network [OSTI]

    Chen, Chuan-Hung

    2015-01-01

    Diboson resonance with mass around 2 TeV in the dijet invariant mass spectrum is reported by ATLAS experiment in proton-proton collisions at $\\sqrt{s}=8$ TeV. We propose that the candidate of resonance is a heavy neutral Higgs $H^0$ or charged Higgs $H^\\pm$ and use the extended two-Higgs-doublet (THD) to demonstrate the potentiality. We find that the large Yukawa coupling to the first generation of quarks can be realized in THD and the required value for producing the right resonance production cross section is of ${\\cal O}(0.06-0.2)$. Besides $WW/ZZ$ channels, we find that if the mass of pseudoscalar $A^0$ satisfies the jet mass tagging condition $|m_j - m_{Z/W}|< 13$ GeV, the diboson excess could be also caused by $ZA^0$ or $WA^0$ channel.

  8. Measurement of Single-top Quark Production with ATLAS Data

    E-Print Network [OSTI]

    J. L. Holzbauer; for the ATLAS Collaboration

    2011-11-14

    Single-top production processes have been studied using 0.7 fb-1 of data from 7 TeV center-of-mass energy proton-proton collisions collected with the ATLAS detector at the LHC. Single-top is electroweak top production and the standard model includes three production modes. Each contains a Wtb vertex, allowing the possibility of a direct measurement of the CKM matrix element |Vtb|. Single-top could also be sensitive to new physics, such as flavor changing neutral currents or heavy W' bosons. Using cut-based selections, a limit of production and production. For the t-channel measurement, both cut-based and neural network analyses are performed and the cross-section is measured to be 90 +32 -22 pb, where 65 +28 -19 pb is expected according to standard model.

  9. Wind energy resource atlas. Volume 2. The North Central Region

    SciTech Connect (OSTI)

    Freeman, D.L.; Hadley, D.L.; Elliott, D.L.; Barchet, W.R.; George, R.L.

    1981-02-01

    The North Central atlas assimilates six collections of wind resource data: one for the region and one for each of the five states that compose the North Central region (Iowa, Minnesota, Nebraska, North Dakota, and South Dakota). At the state level, features of the climate, topography and wind resource are discussed in greater detail than is provided in the regional discussion, and that data locations on which the assessment is based are mapped. Variations, over several time scales, in the wind resource at selected stations in each state are shown on graphs of monthly average and international wind speed and power, and hourly average wind speed for each season. Other graphs present speed direction and duration frequencies of the wind at these locations.

  10. Megaparsec relativistic jets launched from an accreting supermassive black hole in an extreme spiral galaxy

    SciTech Connect (OSTI)

    Bagchi, Joydeep; Vivek, M.; Srianand, Raghunathan; Gopal-Krishna; Vikram, Vinu; Hota, Ananda; Biju, K. G.; Sirothia, S. K.; Jacob, Joe

    2014-06-20

    The radio galaxy phenomenon is directly connected to mass-accreting, spinning supermassive black holes found in the active galactic nuclei. It is still unclear how the collimated jets of relativistic plasma on hundreds to thousands of kiloparsec scales form and why they are nearly always launched from the nuclei of bulge-dominated elliptical galaxies and not flat spirals. Here we present the discovery of the giant radio source J2345–0449 (z = 0.0755), a clear and extremely rare counterexample where relativistic jets are ejected from a luminous and massive spiral galaxy on a scale of ?1.6 Mpc, the largest known so far. Extreme physical properties observed for this bulgeless spiral host, such as its high optical and infrared luminosity, large dynamical mass, rapid disk rotation, and episodic jet activity, are possibly the results of its unusual formation history, which has also assembled, via gas accretion from a disk, its central black hole of mass >2 × 10{sup 8} M {sub ?}. The very high mid-IR luminosity of the galaxy suggests that it is actively forming stars and still building a massive disk. We argue that the launch of these powerful jets is facilitated by an advection-dominated, magnetized accretion flow at a low Eddington rate onto this unusually massive (for a bulgeless disk galaxy) and possibly fast spinning central black hole. Therefore, J2345–0449 is an extremely rare, unusual galactic system whose properties challenge the standard paradigms for black hole growth and the formation of relativistic jets in disk galaxies. Thus, it provides fundamental insight into accretion disk-relativistic jet coupling processes.

  11. Evaluation of atlas-based auto-segmentation software in prostate cancer patients

    SciTech Connect (OSTI)

    Greenham, Stuart; Dean, Jenna; Fu, Cheuk Kuen Kenneth; Goman, Joanne; Mulligan, Jeremy; Tune, Deanna; Sampson, David; Westhuyzen, Justin; McKay, Michael

    2014-09-15

    The performance and limitations of an atlas-based auto-segmentation software package (ABAS; Elekta Inc.) was evaluated using male pelvic anatomy as the area of interest. Contours from 10 prostate patients were selected to create atlases in ABAS. The contoured regions of interest were created manually to align with published guidelines and included the prostate, bladder, rectum, femoral heads and external patient contour. Twenty-four clinically treated prostate patients were auto-contoured using a randomised selection of two, four, six, eight or ten atlases. The concordance between the manually drawn and computer-generated contours were evaluated statistically using Pearson's product–moment correlation coefficient (r) and clinically in a validated qualitative evaluation. In the latter evaluation, six radiation therapists classified the degree of agreement for each structure using seven clinically appropriate categories. The ABAS software generated clinically acceptable contours for the bladder, rectum, femoral heads and external patient contour. For these structures, ABAS-generated volumes were highly correlated with ‘as treated’ volumes, manually drawn; for four atlases, for example, bladder r = 0.988 (P < 0.001), rectum r = 0.739 (P < 0.001) and left femoral head r = 0.560 (P < 0.001). Poorest results were seen for the prostate (r = 0.401, P < 0.05) (four atlases); however this was attributed to the comparison prostate volume being contoured on magnetic resonance imaging (MRI) rather than computed tomography (CT) data. For all structures, increasing the number of atlases did not consistently improve accuracy. ABAS-generated contours are clinically useful for a range of structures in the male pelvis. Clinically appropriate volumes were created, but editing of some contours was inevitably required. The ideal number of atlases to improve generated automatic contours is yet to be determined.

  12. Launching applications on compute and service processors running under different operating systems in scalable network of processor boards with routers

    DOE Patents [OSTI]

    Tomkins, James L. (Albuquerque, NM); Camp, William J. (Albuquerque, NM)

    2009-03-17

    A multiple processor computing apparatus includes a physical interconnect structure that is flexibly configurable to support selective segregation of classified and unclassified users. The physical interconnect structure also permits easy physical scalability of the computing apparatus. The computing apparatus can include an emulator which permits applications from the same job to be launched on processors that use different operating systems.

  13. COPYRIGHT 2005 SCIENTIFIC AMERICAN, INC. When the World Wide Web launched in 1993, it seemed to catch on and

    E-Print Network [OSTI]

    Church, George M.

    COPYRIGHT 2005 SCIENTIFIC AMERICAN, INC. #12;When the World Wide Web launched in 1993, it seemed revolution, which may be in SCIENTIFIC AMERICAN 47 Genomesfor ALLNext-generation technologies that make is now By George M.Church COPYRIGHT 2005 SCIENTIFIC AMERICAN, INC. #12;48 SCIENTIFIC AMERICAN JANUARY

  14. T-Mobile Germany launches mobile social web services on web'n'walk Feb 12, 2008

    E-Print Network [OSTI]

    Deutschmann, Rainer

    T-Mobile Germany launches mobile social web services on web'n'walk portal Feb 12, 2008 · Agreements services T-Mobile International will extend its open mobile internet experience web'n'walk with unlimited choose from a wide range of Internet services, such as eBay, Amazon and web mail services, and integrate

  15. GREEN PROGRAM This summer GREEN is launching a new program in Iceland, the "greenest" country in the

    E-Print Network [OSTI]

    Dawson, Jeff W.

    academic credit upon completion of the 10-day program. The GREEN Program enhances your understandingGREEN PROGRAM This summer GREEN is launching a new program in Iceland, the "greenest" country will receive the hands-on experience you need to accelerate your career. The GREEN Program is a short

  16. PPPL3252 Preprint: June 1997, UC420, 427 Role of Plasma Edge in the Direct Launch Ion

    E-Print Network [OSTI]

    installed in Tokamak Fusion Test Reactor (TFTR) to test a concept of generating sheared flow 2 in order efficiency for the core deposition. In order to launch IBW, it is necessary to first couple to cold plasma that it is difficult to couple directly. There are two cold plasma waves which can couple directly to IBW, namely

  17. PPPL-3252 -Preprint: June 1997, UC-420, 427 Role of Plasma Edge in the Direct Launch Ion

    E-Print Network [OSTI]

    in Tokamak Fusion Test Reactor (TFTR) to test a concept of generating sheared flow2 in order to trigger efficiency for the core deposition. In order to launch IBW, it is necessary to first couple to cold plasma that it is difficult to couple directly. There are two cold plasma waves which can couple directly to IBW, namely

  18. The Earth-Life Science Institute (ELSI) was launched on December 7, 2012 after being selected by the Ministry of

    E-Print Network [OSTI]

    The Earth-Life Science Institute (ELSI) was launched on December 7, 2012 after being selected; Ehime University, Japan Aerospace Exploration Agency (JAXA) and Japan Agency for Marine-Earth Science"origin and evolution of life"and the"origin and evolution of the Earth" through the interdisciplinary collaboration

  19. The Department of Psychology has a new look! On August 10th, the Department of Psychology launched seven new

    E-Print Network [OSTI]

    Hopfinger, Joseph B.

    The Department of Psychology has a new look! On August 10th, the Department of Psychology launched seven new websites, including a webpage for the Behavioral Neuroscience, Clinical Psychology, Cognitive Psychology, Developmental Psychology, Quantitative Psychology, and Social Psychology programs. UNC Opens New

  20. Study of the performance of the MicroMegas chambers for the ATLAS Muon Spectrometer Upgrade

    E-Print Network [OSTI]

    Vanadia, Marco; The ATLAS collaboration

    2015-01-01

    Micromegas (MICRO MEsh GAseous Structure) chambers are Micro-Pattern Gaseous Detectors designed to provide a high spatial resolution in highly irradiated environments. In 2007 an ambitious long-term R&D activity was started in the context of the ATLAS experiment, at CERN: the Muon ATLAS Micromegas Activity (MAMMA). After years of tests on prototypes and technology breakthroughs, Micromegas chambers were chosen as tracking detectors for an upgrade of the ATLAS Muon Spectrometer. These novel detectors will be installed in 2018 and 2019 during the second long shutdown of the Large Hadron Collider, and will serve as precision detectors in the innermost part of the ATLAS Muon Spectrometer. Eight layers of Micromegas modules of unprecedented size, up to 3 $\\rm{{m^2}}$, will cover a surface of 150 $\\rm{{m^2}}$ for a total active area of about 1200 $\\rm{{m^2}}$. This upgrade will be crucial to ensure high quality performance for the ATLAS Muon Spectrometer in view of the third run of the Large Hadron Collider and...

  1. gLExec Integration with the ATLAS PanDA Workload Management System

    E-Print Network [OSTI]

    Karavakis, Edward; The ATLAS collaboration; Campana, Simone; De, Kaushik; Di Girolamo, Alessandro; Litmaath, Maarten; Maeno, Tadashi; Medrano Llamas, Ramon; Nilsson, Paul; Wenaus, Torre

    2015-01-01

    The ATLAS Experiment at the Large Hadron Collider has collected data during Run 1 and is ready to collect data in Run 2. The ATLAS data are distributed, processed and analysed at more than 130 grid and cloud sites across the world. At any given time, there are more than 150,000 concurrent jobs running and about a million jobs are submitted on a daily basis on behalf of thousands of physicists within the ATLAS collaboration. The Production and Distributed Analysis (PanDA) workload management system has proved to be a key component of ATLAS and plays a crucial role in the success of the large-scale distributed computing as it is the sole system for distributed processing of Grid jobs across the collaboration since October 2007. ATLAS user jobs are executed on worker nodes by pilots sent to the sites by pilot factories. This pilot architecture has greatly improved job reliability and although it has clear advantages, such as making the working environment homogeneous by hiding any potential heterogeneities, the ...

  2. Room temperature negative differential resistance in molecular Irena Kratochvilova,*a

    E-Print Network [OSTI]

    of a polycarbonate membrane was first coated with a 100 nm layer of Au by thermal evaporation. This conductive layer seals the pores on one side of the membrane and serves as a cathode on which to electroplate metal. The membrane was then placed on a conductive Ag plate or an Au coated glass slide, such that the Au coated side

  3. Subcritical scattering from buried elastic shells Irena Lucifredi and Henrik Schmidt

    E-Print Network [OSTI]

    Schmidt, Henrik

    of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Received 5 July by traditional high-frequency sonars due to their insignificant bottom penetration. Further, even a high grazing ocean waveguide, incorporating all multiple scattering between the object and the seabed. Among

  4. PREPARATION OF NORTHERN MID-CONTINENT PETROLEUM ATLAS

    SciTech Connect (OSTI)

    Lee C. Gerhard; Timothy R. Carr

    2005-03-28

    Report covers the fifth year of the Digital Petroleum Atlas (DPA) Project. To the present day, the DPA remains a long-term effort to develop new methodologies for efficient and timely access to the latest petroleum data and technology for the domestic oil and gas industry, research organizations and local governmental units. The DPA is an evolving approach to generating and publishing petroleum reservoir, field, play and basin studies. Atlas products are integrated with the Kansas Geological Survey web site and are available for every field in Kansas (6,395 fields in Kansas), anywhere in the world using a standard point-and-click world-wide-web interface (http://www.kgs.ku.edu/PRS/petroIndex.html). In order to provide efficient transfer of the technology for client-defined solutions, all information and technology in the DPA can be accessed, manipulated and downloaded. The DPA increases and improves online access from data through to ''final publication''. Until recently the petroleum atlas circulated like all scholarly information, through personal exchanges, subscriptions, and libraries. Today, digital scientific information is becoming the norm. The result--a dramatic increase in the international and disciplinary scope of information exchange in the petroleum industry. Digital communication has made traditional collaborative activity more informal, intimate, instantaneous, and continuous. At the present the DPA provides worldwide access to constantly increasing data and interpreted information. For example, data from each of over 300,000 oil and gas wells in Kansas are being accessed online for projects in locations from Chanute, Kansas, to Houston, Texas, to Berlin, Germany. Programs developed through the DPA provide oil and gas operators and the public tools to make exploration and development decisions using production data, interpreted well logs, and real-time mapped petroleum information. The DPA provides online access to digital versions of published bulletins, maps, and reports. Through the DPA, we provide online tools that permit colleagues and customers to better query, interpret, map, and display the latest information and research results in earth science databases that could be scattered anywhere in the world. These ''published'' products are living, created on demand, customized to best address a specific natural resource question, and access data that is continuously updated and improved. The DPA has significantly altered the relationship between research results, data access, the transfer of technology, and our relationship with our clients. The fifth year of the project moved forward to expand the development and integration of relational databases into the DPA. The result is that most of the pages in the DPA are generated on demand using online clients. Previously completed products, such as field and basin studies, are automatically updated with the latest production and well data. Raster images such has completion reports are scanned and uploaded into relational databases and can be used for efficient construction of larger scale studies. Content of the DPA has increased to cover every field in Kansas. The DPA Project continues to provide improved access to a ''published'' product and ongoing technology transfer activity. The DPA is widely used by oil and gas producers and other groups interested in natural resources.

  5. The Acceleration Mechanism of Resistive MHD Jets Launched from Accretion Disks

    E-Print Network [OSTI]

    T. Kuwabara; K. Shibata; T. Kudoh; R. Matsumoto

    2004-11-26

    We analyzed the results of non-linear resistive magnetohydrodynamical (MHD) simulations of jet formation to study the acceleration mechanism of axisymmetric, resistive MHD jets. The initial state is a constant angular momentum, polytropic torus threaded by weak uniform vertical magnetic fields. The time evolution of the torus is simulated by applying the CIP-MOCCT scheme extended for resistive MHD equations. We carried out simulations up to 50 rotation period at the innermost radius of the disk created by accretion from the torus. The acceleration forces and the characteristics of resistive jets were studied by computing forces acting on Lagrangian test particles. Since the angle between the rotation axis of the disk and magnetic field lines is smaller in resistive models than in ideal MHD models, magnetocentrifugal acceleration is smaller. The effective potential along a magnetic field line has maximum around $z \\sim 0.5r_0$ in resistive models, where $r_0$ is the radius where the density of the initial torus is maximum. Jets are launched after the disk material is lifted to this height by pressure gradient force. Even in this case, the main acceleration force around the slow magnetosonic point is the magnetocentrifugal force. The power of the resistive MHD jet is comparable to the mechanical energy liberated in the disk by mass accretion. Joule heating is not essential for the formation of jets.

  6. Laser-launched flyer plate and confined laser ablation for shock wave loading: Validation and applications

    SciTech Connect (OSTI)

    Paisley, Dennis L.; Luo Shengnian; Greenfield, Scott R.; Koskelo, Aaron C.

    2008-02-15

    We present validation and some applications of two laser-driven shock wave loading techniques: laser-launched flyer plate and confined laser ablation. We characterize the flyer plate during flight and the dynamically loaded target with temporally and spatially resolved diagnostics. With transient imaging displacement interferometry, we demonstrate that the planarity (bow and tilt) of the loading induced by a spatially shaped laser pulse is within 2-7 mrad (with an average of 4{+-}1 mrad), similar to that in conventional techniques including gas gun loading. Plasma heating of target is negligible, in particular, when a plasma shield is adopted. For flyer plate loading, supported shock waves can be achieved. Temporal shaping of the drive pulse in confined laser ablation allows for flexible loading, e.g., quasi-isentropic, Taylor-wave, and off-Hugoniot loading. These techniques can be utilized to investigate such dynamic responses of materials as Hugoniot elastic limit, plasticity, spall, shock roughness, equation of state, phase transition, and metallurgical characteristics of shock-recovered samples.

  7. An asymmetric jet-launching model for the protoplanetary nebula CRL 618

    SciTech Connect (OSTI)

    Velázquez, Pablo F.; Raga, Alejandro C.; Toledo-Roy, Juan C.; Riera, Angels

    2014-10-20

    We propose an asymmetrical jet-ejection mechanism in order to model the mirror symmetry observed in the lobe distribution of some protoplanetary nebulae (pPNs), such as the pPN CRL 618. Three-dimensional hydrodynamical simulations of a precessing jet launched from an orbiting source were carried out, including an alternation in the ejections of the two outflow lobes, depending on which side of the precessing accretion disk is hit by the accretion column from a Roche lobe-filling binary companion. Both synthetic optical emission maps and position-velocity diagrams were obtained from the numerical results with the purpose of carrying out a direct comparison with observations. Depending on the observer's point of view, multipolar morphologies are obtained that exhibit a mirror symmetry at large distances from the central source. The obtained lobe sizes and their spatial distributions are in good agreement with the observed morphology of the pPN CRL 618. We also obtain that the kinematic ages of the fingers are similar to those obtained in the observations.

  8. Alignment of the ATLAS Inner Detector in the LHC Run II

    E-Print Network [OSTI]

    Barranco Navarro, Laura; The ATLAS collaboration

    2015-01-01

    ATLAS physics goals require excellent resolution, unbiased measurement of all charged particle kinematic parameters. These critically depend on the layout and performance of the tracking system and on the quality of its offline alignment. ATLAS is equipped with a tracking system built using different technologies, silicon planar sensors (pixel and micro-strip) and gaseous drift- tubes, all embedded in a 2T solenoidal magnetic field. For the Run II of the LHC, the system was upgraded with the installation of a new pixel layer, the Insertable B-layer (IBL). An outline of the track based alignment approach and its implementation within the ATLAS software will be presented. Special attention will be paid to integration of the IBL into the alignment framework, techniques allowing to identify and eliminate tracking systematics as well as strategies to deal with time-dependent alignment. Performance from the commissioning of Cosmic data and potentially early LHC Run II proton-proton collisions will be discussed.

  9. The Read Out Controller for the ATLAS New Small Wheel

    E-Print Network [OSTI]

    Coliban, Radu Mihai; The ATLAS collaboration; Tulbure, Traian Tiberiu; Ivanovici, Mihail; Martoiu, Victor Sorin; Levinson, Lorne; Vermeulen, Jos

    2015-01-01

    In the upgrade process of the ATLAS detector, the innermost stations of the endcaps (Small Wheels, SW) will be replaced. The New Small Wheel (NSW) will have two chamber technologies, one for the Level-1 trigger function (small-strip Thin Gap Chambers, sTGC) and one primarily dedicated to precision tracking (Micromegas detectors, MM). Custom front-end Application Specific Integrated Circuits (ASICs) will be used to read and filter information from both the sTGC and MM detectors. In the context of the New Small Wheel data path, we designed the Read Out Controller (ROC) ASIC for handling, preprocessing and formatting the data generated by the NSW VMM upstream chips. The ROC will concentrate the data streams from 8 VMMs, filter data based on the BCID and transmit the data to FELIX via the L1DDC. ROC is composed of 8 VMM Capture modules, a cross-bar and 4 SubROC modules. The output data is sent via 4 high-speed e-links.

  10. Highly Parallelized Pattern Matching Execution for the ATLAS Experiment

    E-Print Network [OSTI]

    Citraro, Saverio; The ATLAS collaboration

    2015-01-01

    Abstract– The Associative Memory (AM) system of the Fast Tracker (FTK) processor has been designed to perform pattern matching using as input the data from the silicon tracker in the ATLAS experiment. The AM is the primary component of the FTK system and is designed using ASIC technology (the AM chip) to execute pattern matching with a high degree of parallelism. The FTK system finds track candidates at low resolution that are seeds for a full resolution track fitting. The AM system implementation is named “Serial Link Processor” and is based on an extremely powerful network of 2 Gb/s serial links to sustain a huge traffic of data. This paper reports on the design of the Serial Link Processor consisting of two types of boards, the Little Associative Memory Board (LAMB), a mezzanine where the AM chips are mounted, and the Associative Memory Board (AMB), a 9U VME motherboard which hosts four LAMB daughterboards. We also report on the performance of the prototypes (both hardware and firmware) produced and ...

  11. Commissioning of the Cryogenic System for the ATLAS Superconducting Magnets

    E-Print Network [OSTI]

    Delruelle, N; Bradshaw, T; Haug, F; ten Kate, H H J; Passardi, Giorgio; Pengo, R; Pezzetti, M; Pirotte, O; Rochford, J

    2006-01-01

    The paper describes the test results of the helium cryoplant for the superconducting magnets of the ATLAS particle detector at CERN. It consists of two refrigerators used in common by all the magnets and of two proximity cryogenic systems (PCS) interfacing respectively the toroids and the central solenoid. Emphasis is given to the commissioning of the refrigerators: the main unit of 6 kW equivalent capacity at 4.5 K and the thermal shield refrigerator providing 20 kW between 40 K and 80 K. The first unit is used for refrigeration at 4.5 K and for the cooling of three sets of 20 kA current leads, while the second one provides, in addition to the 20 kW refrigeration of the thermal shields, 60 kW for the cool-down to 100 K of the 660 ton cold mass of the magnets. The tests, carried out with the equipment in the final underground configuration, are extended to the PCS that includes the large liquid helium centrifugal pumps (each providing 1.2 kg/s) for forced-flow cooling of the magnets and the complex distributi...

  12. The ATLAS Data Flow system for the Second LHC Run

    E-Print Network [OSTI]

    Hauser, Reiner; The ATLAS collaboration

    2015-01-01

    After its first shutdown, LHC will provide pp collisions with increased luminosity and energy. In the ATLAS experiment the Trigger and Data Acquisition (TDAQ) system has been upgraded to deal with the increased event rates. The Data Flow (DF) element of the TDAQ is a distributed hardware and software system responsible for buffering and transporting event data from the Readout system to the High Level Trigger (HLT) and to the event storage. The DF has been reshaped in order to profit from the technological progress and to maximize the flexibility and efficiency of the data selection process. The updated DF is radically different from the previous implementation both in terms of architecture and expected performance. The pre-existing two level software filtering, known as L2 and the Event Filter, and the Event Building are now merged into a single process, performing incremental data collection and analysis. This design has many advantages, among which are: the radical simplification of the architecture, the f...

  13. Searches for invisible Higgs boson decays with ATLAS and CMS

    E-Print Network [OSTI]

    Calfayan, Philippe; The ATLAS collaboration

    2015-01-01

    The ATLAS and CMS experiments carried out searches for invisible decays of the Higgs boson. The analyses have been led in final states with missing energy in the transverse plane of the detector, in the case of typical signatures where the Higgs boson is produced in association with an electroweak vector boson, or via gluon-gluon or vector boson fusion. Upper bounds on the branching fraction of a Higgs boson decaying to invisible particles have been derived as function of the assumed mass of the Higgs boson. Additional interpretations have been considered in the context of Higgs-portal models, which resulted in constraints on the production of Dark Matter candidates. The searches are based on the complete datasets from the Run-1 of the Large Hadron Collider, which includes proton-proton collision at a center-of-mass energy of $\\sqrt{s}=7$ or $8\\,\\mathrm{TeV}$, with up to $20\\,\\mathrm{fb}^{-1}$ of integrated luminosity.

  14. ATLAS magnet common cryogenic, vacuum, electrical and control systems

    E-Print Network [OSTI]

    Miele, P; Delruelle, N; Geich-Gimbel, C; Haug, F; Olesen, G; Pengo, R; Sbrissa, E; Tyrvainen, H; ten Kate, H H J

    2004-01-01

    The superconducting Magnet System for the ATLAS detector at the LHC at CERN comprises a Barrel Toroid, two End Cap Toroids and a Central Solenoid with overall dimensions of 20 m diameter by 26 m length and a stored energy of 1.6 GJ. Common proximity cryogenic and electrical systems for the toroids are implemented. The Cryogenic System provides the cooling power for the 3 toroid magnets considered as a single cold mass (600 tons) and for the CS. The 21 kA toroid and the 8 kA solenoid electrical circuits comprise both a switch-mode power supply, two circuit breakers, water cooled bus bars, He cooled current leads and the diode resistor ramp-down unit. The Vacuum System consists of a group of primary rotary pumps and sets of high vacuum diffusion pumps connected to each individual cryostat. The Magnet Safety System guarantees the magnet protection and human safety through slow and fast dump treatment. The Magnet Control System ensures control, regulation and monitoring of the operation of the magnets. The update...

  15. Real-time flavour tagging selection in ATLAS

    E-Print Network [OSTI]

    Bertella, Claudia; The ATLAS collaboration

    2015-01-01

    In high-energy physics experiments, online selection is crucial to identify the few interesting collisions from the large data volume processed. In the overall ATLAS trigger strategy, b-jet triggers are designed to identify heavy-flavor content in real-time and, in particular, provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets from QCD processes, while retaining a high efficiency on selecting jets from beauty, while maintaining affordable trigger rates without raising jet energy thresholds. This maps into a challenging computing task, as charged tracks and their corresponding vertexes must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly harsh pile-up conditions. The performance of b-jet triggers during the LHC Run 1 data-taking campaigns is presented, together wi...

  16. A JEE RESTful service to access Conditions Data in ATLAS

    E-Print Network [OSTI]

    Formica, Andrea; The ATLAS collaboration

    2015-01-01

    Usage of Conditions Data in ATLAS is extensive for offline reconstruction and analysis (e.g.: alignment, calibration, data quality). The system is based on the LCG Conditions Database infrastructure, with read and write access via an ad hoc C++ API (COOL), a system which was developed before Run 1 data taking began. The infrastructure dictates that the data is organized into separate schemata (assigned to subsystems/groups storing distinct and independent sets of conditions), making it difficult to access information from several schemata at the same time. We have thus created PL/SQL functions containing queries to provide content extraction at multi-schema level. The PL/SQL API has been exposed to external clients by means of a Java application providing DB access via RESTful services, deployed inside an application server (JBoss WildFly). The services allow navigation over multiple schemata via simple URLs. The data can be retrieved either in XML or JSON formats, via simple clients (like curl or Web browser...

  17. A JEE RESTful service to access Conditions Data in ATLAS

    E-Print Network [OSTI]

    Formica, Andrea; The ATLAS collaboration

    2015-01-01

    Usage of Conditions Data in ATLAS is extensive for offline reconstruction and analysis (for example: alignment, calibration, data quality). The system is based on the LCG Conditions Database infrastructure, with read and write access via an ad hoc C++ API (COOL), a system which was developed before Run 1 data taking began. The infrastructure dictates that the data is organized into separate schemas (assigned to subsystems/groups storing distinct and independent sets of conditions), making it difficult to access information from several schemas at the same time. We have thus created PL/SQL functions containing queries to provide content extraction at multi-schema level. The PL/SQL API has been exposed to external clients by means of an intermediate java application server (JBoss), where an application delivering access to the DB via RESTful services has been deployed. The services allow navigation over multiple schema content, via simple URLs. The queried data can be retrieved either in XML or JSON formats, vi...

  18. Detection of data taking anomalies for the ATLAS experiment

    E-Print Network [OSTI]

    De Castro Vargas Fernandes, Julio; The ATLAS collaboration; Lehmann Miotto, Giovanna

    2015-01-01

    The physics signals produced by the ATLAS detector at the Large Hadron Collider (LHC) at CERN are acquired and selected by a distributed Trigger and Data AcQuistition (TDAQ) system, comprising a large number of hardware devices and software components. In this work, we focus on the problem of online detection of anomalies along the data taking period. Anomalies, in this context, are defined as an unexpected behaviour of the TDAQ system that result in a loss of data taking efficiency: the causes for those anomalies may come from the TDAQ itself or from external sources. While the TDAQ system operates, it publishes several useful information (trigger rates, dead times, memory usage…). Such information over time creates a set of time series that can be monitored in order to detect (and react to) problems (or anomalies). Here, we approach TDAQ operation monitoring through a data quality perspective, i.e, an anomaly is seen as a loss of quality (an outlier) and it is reported: this information can be used to rea...

  19. Improving Security in the ATLAS PanDA System

    E-Print Network [OSTI]

    Caballero, J; The ATLAS collaboration; Nilsson, P; Stewart, G; Potekhin, M; Wenaus, T

    2011-01-01

    The security challenges faced by users of the grid are considerably different to those faced in previous environments. The adoption of pilot jobs systems by LHC experiments has mitigated many of the problems associated with the inhomogeneities found on the grid and has greatly improved job reliability; however, pilot jobs systems themselves must then address many security issues, including the execution of multiple users' code under a common `grid' identity. In this paper we describe the improvements and evolution of the security model in the ATLAS PanDA (Production and Distributed Analysis) system. We describe the security in the PanDA server which is in place to ensure that only authorized members of the VO are allowed to submit work into the system and that jobs are properly audited and monitored. We discuss the security in place between the pilot code itself and the PanDA server, ensuring that only properly authenticated workload is delivered to the pilot for execution. When the code to be executed is fro...

  20. Real-time flavour tagging selection in ATLAS

    E-Print Network [OSTI]

    Bogavac, Danijela; The ATLAS collaboration

    2015-01-01

    In high-energy physics experiments, online selection is crucial to identify the few interesting collisions from the large data volume processed. In the overall ATLAS trigger strategy, b-jet triggers are designed to identify heavy-flavour content in real-time and, in particular, provide the only option to efficiently record events with fully hadronic final states containing b-jets. In doing so, two different, but related, challenges are faced. The physics goal is to optimise as far as possible the rejection of light jets from multijet processes, while retaining a high efficiency on selecting jets from beauty, and maintaining affordable trigger rates without raising jet energy thresholds. This maps into a challenging computing task, as charged tracks and their corresponding vertexes must be reconstructed and analysed for each jet above the desired threshold, regardless of the increasingly harsh pile-up conditions. The performance of b-jet triggers during the LHC Run 1 data-taking campaigns is presented, togethe...

  1. Surface Ocean CO2 Atlas (SOCAT) gridded data products

    SciTech Connect (OSTI)

    Sabine, Christopher; Hankin, S.; Koyuk, H; Bakker, D C E; Pfeil, B; Olsen, A; Metzl, N; Fassbender, A; Manke, A; Malczyk, J; Akl, J; Alin, S R; Bellerby, R G J; Borges, A; Boutin, J; Cai, W-J; Chavez, F P; Chen, A; Cosa, C; Feely, R A; Gonzalez-Davila, M; Goyet, C; Hardman-Mountford, N; Heinze, C; Hoppema, M; Hunt, C W; Hydes, D; Ishii, M; Johannessen, T; Key, R M; Kortzinger, A; Landschutzer, P; Lauvset, S K; Lefevre, N; Lourantou, A; Mintrop, L; Miyazaki, C; Murata, A; Nakadate, A; Nakano, Y; Nakaoka, S; Nojiri, Y; et al.

    2013-01-01

    A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968 2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have trouble working with millions of measurements, the SOCAT gridded product was generated to provide a robust regularly spaced fCO2 product with minimal spatial and temporal interpolation which should be easier to work with for many applications. Gridded SOCAT is rich with information that has not been fully explored yet, but also contains biases and limitations that the user needs to recognize and address.

  2. Improving the ATLAS physics potential with the Fast Track Trigger System

    E-Print Network [OSTI]

    Cavaliere, Viviana; The ATLAS collaboration

    2015-01-01

    The ATLAS Fast TracKer (FTK) is a custom electronics system that will operate at the full Level-1 accept rate, 100 kHz, to provide high quality tracks as input to the High-Level Trigger. The event reconstruction is performed in hardware, thanks to the massive parallelism of associative memories (AM) and FPGAs. We present the advantages for the physics goals of the ATLAS experiment and the recent results on the design, technological advancements and testing of some of the core components used in the processor.

  3. Search for the Higgs boson in the ttH production channel using the ATLAS detector

    E-Print Network [OSTI]

    Bouffard, Julian; The ATLAS collaboration

    2015-01-01

    Since the discovery of a Higgs boson by the ATLAS and CMS experiments at the LHC, the emphasis has shifted towards measurements of its properties and the search for less sensitive channels in order to determine whether the new particle is the Standard Model (SM) Higgs boson. Of particular importance is the direct observation of the coupling of the Higgs boson to top quarks. In this talk a review of ATLAS results in the search for the Higgs boson in the ttH production mode.

  4. First Results from the Online Radiation Dose Monitoring System in ATLAS experiment

    E-Print Network [OSTI]

    Mandi?, I; The ATLAS collaboration; Deliyergiyev, M; Gorišek, A; Kramberger, G; Mikuž, M; Franz, S; Hartert, J; Dawson, I; Miyagawa, P; Nicolas, L

    2011-01-01

    High radiation doses which will accumulate in components of ATLAS experiment during data taking will causes damage to detectors and readout electronics. It is therefore important to continuously monitor the doses to estimate the level of degradation caused by radiation. Online radiation monitoring system measures ionizing dose in SiO2 , displacement damage in silicon in terms of 1-MeV(Si) equivalent neutron fluence and fluence of thermal neutrons at several locations in ATLAS detector. In this paper design of the system, results of measurements and comparison of measured integrated doses and fluences with predictions from FLUKA simulation will be shown.

  5. Low-complexity atlas-based prostate segmentation by combining global, regional, and local metrics

    SciTech Connect (OSTI)

    Xie, Qiuliang; Ruan, Dan, E-mail: druan@mednet.ucla.edu [The Department of Radiation Oncology, University of California Los Angeles, California 90095 (United States)] [The Department of Radiation Oncology, University of California Los Angeles, California 90095 (United States)

    2014-04-15

    Purpose: To improve the efficiency of atlas-based segmentation without compromising accuracy, and to demonstrate the validity of the proposed method on MRI-based prostate segmentation application. Methods: Accurate and efficient automatic structure segmentation is an important task in medical image processing. Atlas-based methods, as the state-of-the-art, provide good segmentation at the cost of a large number of computationally intensive nonrigid registrations, for anatomical sites/structures that are subject to deformation. In this study, the authors propose to utilize a combination of global, regional, and local metrics to improve the accuracy yet significantly reduce the number of required nonrigid registrations. The authors first perform an affine registration to minimize the global mean squared error (gMSE) to coarsely align each atlas image to the target. Subsequently, atarget-specific regional MSE (rMSE), demonstrated to be a good surrogate for dice similarity coefficient (DSC), is used to select a relevant subset from the training atlas. Only within this subset are nonrigid registrations performed between the training images and the target image, to minimize a weighted combination of gMSE and rMSE. Finally, structure labels are propagated from the selected training samples to the target via the estimated deformation fields, and label fusion is performed based on a weighted combination of rMSE and local MSE (lMSE) discrepancy, with proper total-variation-based spatial regularization. Results: The proposed method was applied to a public database of 30 prostate MR images with expert-segmented structures. The authors’ method, utilizing only eight nonrigid registrations, achieved a performance with a median/mean DSC of over 0.87/0.86, outperforming the state-of-the-art full-fledged atlas-based segmentation approach of which the median/mean DSC was 0.84/0.82 when applying to their data set. Conclusions: The proposed method requires a fixed number of nonrigid registrations, independent of atlas size, providing desirable scalability especially important for a large or growing atlas. When applied to prostate segmentation, the method achieved better performance to the state-of-the-art atlas-based approaches, with significant improvement in computation efficiency. The proposed rationale of utilizing jointly global, regional, and local metrics, based on the information characteristic and surrogate behavior for registration and fusion subtasks, can be extended naturally to similarity metrics beyond MSE, such as correlation or mutual information types.

  6. Construction and test of MDT chambers for the ATLAS muon spectrometer

    E-Print Network [OSTI]

    Bauer, F; Dietl, H; Kroha, H; Lagouri, T; Manz, A; Ostapchuk, A Ya; Richter, R; Schael, S; Chouridou, S; Deile, M; Kortner, O; Staude, A; Ströhmer, R; Trefzger, T M

    2001-01-01

    The Monitored Drift Tube (MDT) chambers for the muon spectrometer of the ATLAS detector at the Large Hadron Collider (LHC) consist of 3-4 layers of pressurized drift tubes on either side ofa space frame carrying an optical monitoring system to correct fordeformations. The full-scale prototype of a large MDT chamber has been constructed with methods suitable for large-scale production. X-ray measurements at CERN showed a positioning accuracy of the sense wires in the chamber of better than the required 20 micrometers (rms). The performance of the chamber was studied in a muon beam at CERN. Chamber production for ATLAS now has started.

  7. Methodology assessment and recommendations for the Mars science laboratory launch safety analysis.

    SciTech Connect (OSTI)

    Sturgis, Beverly Rainwater; Metzinger, Kurt Evan; Powers, Dana Auburn; Atcitty, Christopher B.; Robinson, David B; Hewson, John C.; Bixler, Nathan E.; Dodson, Brian W.; Potter, Donald L.; Kelly, John E.; MacLean, Heather J.; Bergeron, Kenneth Donald; Bessette, Gregory Carl; Lipinski, Ronald J.

    2006-09-01

    The Department of Energy has assigned to Sandia National Laboratories the responsibility of producing a Safety Analysis Report (SAR) for the plutonium-dioxide fueled Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) proposed to be used in the Mars Science Laboratory (MSL) mission. The National Aeronautic and Space Administration (NASA) is anticipating a launch in fall of 2009, and the SAR will play a critical role in the launch approval process. As in past safety evaluations of MMRTG missions, a wide range of potential accident conditions differing widely in probability and seventy must be considered, and the resulting risk to the public will be presented in the form of probability distribution functions of health effects in terms of latent cancer fatalities. The basic descriptions of accident cases will be provided by NASA in the MSL SAR Databook for the mission, and on the basis of these descriptions, Sandia will apply a variety of sophisticated computational simulation tools to evaluate the potential release of plutonium dioxide, its transport to human populations, and the consequent health effects. The first step in carrying out this project is to evaluate the existing computational analysis tools (computer codes) for suitability to the analysis and, when appropriate, to identify areas where modifications or improvements are warranted. The overall calculation of health risks can be divided into three levels of analysis. Level A involves detailed simulations of the interactions of the MMRTG or its components with the broad range of insults (e.g., shrapnel, blast waves, fires) posed by the various accident environments. There are a number of candidate codes for this level; they are typically high resolution computational simulation tools that capture details of each type of interaction and that can predict damage and plutonium dioxide release for a range of choices of controlling parameters. Level B utilizes these detailed results to study many thousands of possible event sequences and to build up a statistical representation of the releases for each accident case. A code to carry out this process will have to be developed or adapted from previous MMRTG missions. Finally, Level C translates the release (or ''source term'') information from Level B into public risk by applying models for atmospheric transport and the health consequences of exposure to the released plutonium dioxide. A number of candidate codes for this level of analysis are available. This report surveys the range of available codes and tools for each of these levels and makes recommendations for which choices are best for the MSL mission. It also identities areas where improvements to the codes are needed. In some cases a second tier of codes may be identified to provide supporting or clarifying insight about particular issues. The main focus of the methodology assessment is to identify a suite of computational tools that can produce a high quality SAR that can be successfully reviewed by external bodies (such as the Interagency Nuclear Safety Review Panel) on the schedule established by NASA and DOE.

  8. An investigation of the effect of a propellant liner in the launch tube of a hypervelocity accelerator 

    E-Print Network [OSTI]

    Schappaugh, Ronald Dean

    1967-01-01

    from a five foot one-eighth inch diameter launch tube. 20 CHAPTER IV EXPERINENTAL FACILITIES AND EQUIPMENT Accelerator To test the effect of a propellant liner, a powder gun accelerator was designed in such a manner to permit coating...'. "" 1 . h 22 entering the tube. 1t was thought that the propellant liner would more readily ignite, if the projectile had an initial velocity when it entered the coated tube. The system was designed so that the pistol could be triggered...

  9. PowerPoint Slide: Launching the Next Phase of the Better Buildings Neighborhood Program, 4/30/2013

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy Bills andOrderNATIONAL CHAIRS MEETING Deer CreekIsland Launching the Next

  10. Midcontinent Interactive Digital Carbon Atlas and Relational Database (MIDCARB)

    SciTech Connect (OSTI)

    Timothy R. Carr; Scott W. White

    2002-06-01

    This annual report describes progress of the project entitled ''Midcontinent Interactive Digital Carbon Atlas and Relational Database (MIDCARB)''. This project, funded by the Department of Energy, is a cooperative project that assembles a consortium of five states (Indiana, Illinois, Kansas, Kentucky and Ohio) to construct an online distributed Relational Database Management System (RDBMS) and Geographic Information System (GIS) covering aspects of carbon dioxide geologic sequestration (http://www.midcarb.org). The system links the five states in the consortium into a coordinated regional database system consisting of datasets useful to industry, regulators and the public. The project is working to provide advanced distributed computing solutions to link database servers across the five states into a single system where data is maintained at the local level but is accessed through a single Web portal and can be queried, assembled, analyzed and displayed. Each individual state has strengths in data gathering, data manipulation and data display, including GIS mapping, custom application development, web development, and database design. Sharing of expertise provides the critical mass of technical expertise to improve CO{sub 2} databases and data access in all states. This project improves the flow of data across servers in the five states and increases the amount and quality of available digital data. The MIDCARB project is developing improved online tools to provide real-time display and analyze CO{sub 2} sequestration data. The system links together data from sources, sinks and transportation within a spatial database that can be queried online. Visualization of high quality and current data can assist decision makers by providing access to common sets of high quality data in a consistent manner.

  11. Alternative glues for the production of ATLAS silicon strip modules for the Phase-II upgrade of the ATLAS Inner Detector

    E-Print Network [OSTI]

    Poley, Luise; Edwards, Sam; Friedrich, Conrad; Gregor, Ingrid; Lacker, Heiko; Pyatt, Simon; Rehnisch, Laura; Sperlich, Dennis; Wilson, John

    2015-01-01

    The Phase-II upgrade of the ATLAS detector for the High Luminosity Large Hadron Collider (HL-LHC) includes the replacement of the current Inner Detector with an all-silicon tracker consisting of pixel and strip detectors. The current Phase-II detector layout requires the construction of 20,000 strip detector modules consisting of sensor, circuit boards and readout chips, which are connected mechanically using adhesives. The adhesive between readout chips and circuit board is a silver epoxy glue as was used in the current ATLAS SemiConductor Tracker (SCT). This glue has several disadvantages, which motivated the search for an alternative. This paper presents a study concerning the use of six ultra-violet (UV) cure glues and a glue pad for use in the assembly of silicon strip detector modules for the ATLAS upgrade. Trials were carried out to determine the ease of use, the thermal conduction and shear strength, thermal cycling, radiation hardness, corrosion resistance and shear strength tests. These investigatio...

  12. Alternative glues for the production of ATLAS silicon strip modules for the Phase-II upgrade of the ATLAS Inner Detector

    E-Print Network [OSTI]

    Luise Poley; Ingo Bloch; Sam Edwards; Conrad Friedrich; Ingrid Gregor; Heiko Lacker; Simon Pyatt; Laura Rehnisch; Dennis Sperlich; John Wilson

    2015-08-25

    The Phase-II upgrade of the ATLAS detector for the High Luminosity Large Hadron Collider (HL-LHC) includes the replacement of the current Inner Detector with an all-silicon tracker consisting of pixel and strip detectors. The current Phase-II detector layout requires the construction of 20,000 strip detector modules consisting of sensor, circuit boards and readout chips, which are connected mechanically using adhesives. The adhesive between readout chips and circuit board is a silver epoxy glue as was used in the current ATLAS SemiConductor Tracker (SCT). This glue has several disadvantages, which motivated the search for an alternative. This paper presents a study concerning the use of six ultra-violet (UV) cure glues and a glue pad for use in the assembly of silicon strip detector modules for the ATLAS upgrade. Trials were carried out to determine the ease of use, the thermal conduction and shear strength, thermal cycling, radiation hardness, corrosion resistance and shear strength tests. These investigations led to the exclusion of three UV cure glues as well as the glue pad. Three UV cure glues were found to be possible better alternatives. Results from electrical tests of first prototype modules constructed using these glues are presented.

  13. Search for massive long-lived highly ionising particles with the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search is made for massive highly ionising particles with lifetimes in excess of 100 ns, with the ATLAS experiment at the Large Hadron Collider, using 3.1 pb[superscript ?1] of pp collision data taken at ?s = 7 TeV. The ...

  14. Observation of an Excited B[± over c] Meson State with the ATLAS Detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search for excited states of the B[± over c] meson is performed using 4.9??fb[superscript ?1] of 7 TeV and 19.2??fb[superscript ?1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is ...

  15. Deep ATLAS radio observations of the CDFS-SWIRE field Ray P. Norris1

    E-Print Network [OSTI]

    Norris, Ray

    1 Deep ATLAS radio observations of the CDFS-SWIRE field Ray P. Norris1 , José Afonso5 , Phil N), which consist of deep radio observations of a 3.7 square degree field surrounding the Chandra Deep Field can only be discovered in wide, deep surveys such as this. Subject headings: Catalogs --- surveys

  16. Search for Magnetic Monopoles in ?s=7??TeV pp Collisions with the ATLAS Detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter presents a search for magnetic monopoles with the ATLAS detector at the CERN Large Hadron Collider using an integrated luminosity of 2.0??fb[superscript -1] of pp collisions recorded at a center-of-mass energy ...

  17. Measurements of the properties of the Higgs boson using the ATLAS Detector

    E-Print Network [OSTI]

    Filipuzzi, Marco; The ATLAS collaboration

    2015-01-01

    A review of the Higgs coupling and spin/CP properties measurements with up to 25 fb-1 of 7 TeV and 8 TeV pp collision data collected by the ATLAS detector in 2011 and 2012 will be presented.

  18. Combination of couplings of the Higgs boson by the ATLAS experiment with Run 1 data

    E-Print Network [OSTI]

    Lu, Nan; The ATLAS collaboration

    2015-01-01

    A review of the Run 1 combination of the mass. coupling, and spin CP properties measurements of the Higgs boson using the ATLAS detector and up to 25 fb-1 of 7 TeV and 8 TeV pp collision data collected in 2011 and 2012 will be presented.

  19. Pipeline for the Creation of Surface-based Averaged Brain Atlases

    E-Print Network [OSTI]

    Menzel, Randolf - Institut für Biologie

    Pipeline for the Creation of Surface-based Averaged Brain Atlases Anja Kuß Hans-Christian Hege from different image modalities and experiments. In this paper we describe a standardized pipeline of individuals. The pipeline consists of the major steps imaging and preprocessing, segmentation, averaging

  20. Preparations for Physics Studies with ATLAS During the First Years of the LHC

    ScienceCinema (OSTI)

    Fabiola Gianotti

    2010-01-08

    I will review the status of the ATLAS detector installation and commissioning, and discuss the preparation for physics with test-beam studies, detailed simulations, and runs with cosmics. I will then show examples of physics opportunities with the first LHC data.   

  1. Prospects for studies of high-energy solar cosmic rays with ATLAS

    E-Print Network [OSTI]

    S. N. Karpov; Z. M. Karpova; V. A. Bednyakov

    2008-11-18

    The ATLAS detector is intended to verify the standard model and to search for new physics at the Large Hadron Collider (LHC, CERN). In addition to this primary goal, it also allows detection of muons of cosmic rays. On the other hand, unusual bursts of the muon intensity, which correlate with powerful solar flares were recorded and investigated earlier at the Baksan Underground Scintillation Telescope (BUST, INR, Russia) in period from 1981 to 2006 (~2.5 solar cycles). The nature of the muon bursts and their probable relation to the solar cosmic rays is still not quite clear. ATLAS has an excellent muon system allowing search for similar muon bursts. Within the next few years, when the LHC and ATLAS should start to operate, an increase in the solar activity is expected in the new 24th cycle. It increases the probability of finding the muon bursts from powerful flares. Hence ATLAS has a good opportunity to verify the relation of muon bursts to the solar cosmic rays.

  2. Search for VH ? leptons + b¯b with the ATLAS experiment at the LHC 

    E-Print Network [OSTI]

    Debenedetti, Chiara

    2014-11-27

    The search for a Higgs boson decaying to a b¯b pair is one of the key analyses ongoing at the ATLAS experiment. Despite being the largest branching ratio decay for a Standard Model Higgs boson, a large dataset is necessary ...

  3. Tests of PoD with ATLAS Prodsys2 and first experience with HTTP Federation

    E-Print Network [OSTI]

    Di Nardo, Roberto; The ATLAS collaboration; Ganis, Gerardo; Antonelli, Mario

    2015-01-01

    During the LHC Run-1, Grid resources in ATLAS have been managed by the PanDA and DQ2 systems. In order to meet the needs for the LHC Run-2, Prodsys2 and Rucio are used as the new ATLAS Workload and Data Management systems. The data are stored under various formats in ROOT files and end-user physicists have the choice to use either the ATHENA framework or directly ROOT. Within the ROOT data analysis framework it is possible to perform analysis of huge sets of ROOT files in parallel with PROOF on clusters of computers (usually organised in analysis facilities) or multi-core machines. In addition, PROOF-on-Demand (PoD) can be used to enable PROOF on top of an existing resource management system. In this work, we present the first performances obtained enabling PROOF-based analysis in the Italian ATLAS Tier-1/Tier-2 sites within the new ATLAS workload system. Benchmark tests of data access with the httpd protocol, using also the httpd redirector, will be shown. We also present results on the startup latency tests...

  4. Tests of PoD with ATLAS Prodsys2 and first experience with HTTP Federation

    E-Print Network [OSTI]

    Di Nardo, Roberto; The ATLAS collaboration; Vilucchi, Elisabetta; Antonelli, Mario

    2015-01-01

    During the LHC Run-1, Grid resources in ATLAS have been managed by the PanDA and DQ2 systems. In order to meet the needs for the LHC Run-2, Prodsys2 and Rucio are used as the new ATLAS Workload and Data Management systems. The data are stored under various formats in ROOT files and end-user physicists have the choice to use either the ATHENA framework or directly ROOT. Within the ROOT data analysis framework it is possible to perform analysis of huge sets of ROOT files in parallel with PROOF on clusters of computers (usually organised in analysis facilities) or multi-core machines. In addition, PROOF-on-Demand (PoD) can be used to enable PROOF on top of an existing resource management system. In this work, we present the first performances obtained enabling PROOF-based analysis at CERN and in some of the Italian ATLAS Tier-2 sites within the new ATLAS workload system. Benchmark tests of data access with the httpd protocol, using also the httpd redirector, will be shown. We also present results on the startup ...

  5. Radiation studies for GaAs in the ATLAS Inner Detector

    E-Print Network [OSTI]

    M. Rogalla; Th. Eich; N. Evans; R. Geppert; R. Goeppert; R. Irsigler; J. Ludwig; K. Runge; Th. Schmid

    1997-01-22

    We estimate the hardness factors and the equivalent 1 MeV neutron fluences for hadrons fluences expected at the GaAs positions wheels in the ATLAS Inner Detector. On this basis the degradation of the GaAs particle detectors made from different substrates as a function of years LHC operation is predicted.

  6. Evaluierung eines FPGA und PCI Bus basierten Auslesespeichers für das Atlas Experiment

    E-Print Network [OSTI]

    Müller, Matthias

    2004-01-01

    This dissertation evaluates a readout buffer system for the ATLAS detector trigger and data acquisition system. ATLAS is a high energy physics experiment at the large hadron collider (LHC) with the aim to reach new frontiers in the investigation of the structure of matter. The high precision ATLAS detector produces a huge amount of data, 40 TByte/s, which is reduced by a three-level trigger system for online event data selection. The readout buffer system acts as a data buffer while the second trigger level computes the trigger decision. ATLAS uses a sequential selection in the level 2 trigger which means that all event data required for the trigger decision is requested from the readout buffer component subsequently. This increases the complexity of the readout buffer device and its output event rate. Furthermore a region-of-interest (RoI) concept limits the amount of data necessary for the processing of one event inside the level 2 processor by defining the detector region with interesting data. Thus, appro...

  7. The ATLAS High Level Trigger Steering Framework and the Trigger Configuration System.

    E-Print Network [OSTI]

    Perez Cavalcanti, Tiago; The ATLAS collaboration

    2011-01-01

    The ATLAS detector system installed in the Large Hadron Collider (LHC) at CERN is designed to study proton-proton and nucleus-nucleus collisions with a maximum centre of mass energy of 14 TeV at a bunch collision rate of 40MHz. In March 2010 the four LHC experiments saw the first proton-proton collisions at 7 TeV. Still within the year a collision rate of nearly 10 MHz is expected. At ATLAS, events of potential interest for ATLAS physics are selected by a three-level trigger system, with a final recording rate of about 200 Hz. The first level (L1) is implemented in custom hardware; the two levels of the high level trigger (HLT) are software triggers, running on large farms of standard computers and network devices. Within the ATLAS physics program more than 500 trigger signatures are defined. The HLT tests each signature on each L1-accepted event; the test outcome is recorded for later analysis. The HLT-Steering is responsible for this. It foremost ensures the independent test of each signature, guarantying u...

  8. Measurement of upsilon production in 7 TeV pp collisions at ATLAS

    E-Print Network [OSTI]

    Taylor, Frank E.

    Using 1.8??fb[superscript -1] of pp collisions at a center-of-mass energy of 7 TeV recorded by the ATLAS detector at the Large Hadron Collider, we present measurements of the production cross sections of ?(1S,2S,3S) mesons. ...

  9. Automated Brain Shift Correction Using A Pre-computed Deformation Atlas

    E-Print Network [OSTI]

    Frey, Pascal

    Automated Brain Shift Correction Using A Pre-computed Deformation Atlas Prashanth Dumpuria Dr. Reid, USA ABSTRACT Compensating for intraoperative brain shift using computational models has shown preoperatively and are combined with the help of a statistical model to predict the intraoperative brain shift

  10. The software of the ATLAS beam pick-up based LHC monitoring system

    E-Print Network [OSTI]

    C. Ohm; T. Pauly

    2009-09-29

    The ATLAS BPTX stations are comprised of electrostatic button pick-up detectors, located 175 m away along the beam pipe on both sides of ATLAS. The pick-ups are installed as a part of the LHC beam instrumentation and used by ATLAS for timing purposes. The signals from the ATLAS BPTX detectors are used both in the trigger system and for a stand-alone monitoring system for the LHC beams and timing signals. The monitoring software measures the phase between collisions and clock with high accuracy in order to guarantee a stable phase relationship for optimal signal sampling in the sub-detector front-end electronics. It also measures the properties of the individual bunches and the structure of the beams. In this paper, the BPTX monitoring software is described, its algorithms explained and a few example monitoring displays shown. In addition, results from the monitoring system during the first period of single beam running in September 2008 are presented.

  11. Evolution of the ReadOut System of the ATLAS experiment

    E-Print Network [OSTI]

    Borga, A; The ATLAS collaboration; Green, B; Kugel, A; Joos, M; Panduro Vazquez, W; Schumacher, J; Teixeira-Dias, P; Tremblet, L; Vandelli, W; Vermeulen, J; Werner, P; Wickens, F

    2014-01-01

    The ReadOut System (ROS) is a central and essential part of the ATLAS DAQ system. It receives and buffers data of events accepted by the first-level trigger from all subdetectors and first-level trigger subsystems. Event data are subsequently forwarded to the High-Level Trigger system and Event Builder via a 1 GbE-based network. The ATLAS ROS is completely renewed in view of the demanding conditions expected during LHC Run 2 and Run 3, to replace obsolete technologies and space constraints require it to be compact. The new ROS will consist of roughly 100 Linux-based 2U high rack mounted server PCs, each equipped with 2 PCIe I/O cards and two four 10 GbE interfaces. The FPGA-based PCIe I/O cards, developed by the ALICE collaboration, will be configured with ATLAS-specific firmware, the so-called RobinNP firmware. They will provide the connectivity to about 2000 optical point-to-point links conveying the ATLAS event data. This dense configuration provides an excellent test bench for studying I/O efficiency and ...

  12. Searches for invisible decays of the Higgs boson with ATLAS and CMS

    E-Print Network [OSTI]

    Calfayan, Philippe; The ATLAS collaboration

    2015-01-01

    This talk will summarize the latest results of searches for the decay of the observed Higgs boson into invisible and quasi-invisible states. The talk should cover the results of the ATLAS and the CMS experiment based on the full dataset of LHC run-1.

  13. Searches for Exotic Higgs Boson Decays with the ATLAS and the CMS Experiment

    E-Print Network [OSTI]

    Lagouri, Theodota; The ATLAS collaboration

    2015-01-01

    This talk will summarize the searches for exotic Higgs boson decays. It should cover decays of the observed Higgs boson to dark sector bosons, lepton flavor violating and flavor changing decays, and decays to a light pseudoscalar neutral Higgs boson as predicted by the NMSSM. Prospects for the LHC run-2 should be given. The talk should cover the results from ATLAS and CMS.

  14. Surface Based Atlas Matching of the Brain Using Deformable Surfaces and Volumetric Finite Elements

    E-Print Network [OSTI]

    Surface Based Atlas Matching of the Brain Using Deformable Surfaces and Volumetric Finite Elements onto the target image and interpolate the surface displacement to obtain a fully volumetric mapping (e.g. [3]). Volumetric methods compute a deformation field that minimizes a similarity criterion between

  15. Search for high mass dilepton resonances in pp collisions at ?s = 7 TeV with the ATLAS experiment

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter presents a search for high mass e[superscript +]e[superscript ?] or ?[superscript +]?[superscript ?] resonances in pp collisions at ?s = 7 TeV at the LHC. The data were recorded by the ATLAS experiment during ...

  16. Search for high-mass dilepton resonances in pp collisions at ?s = 8 TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to dielectron or dimuon final states. Results are presented from an analysis of proton-proton (pp) collisions at a ...

  17. Search for excited leptons in proton-proton collisions at ?s=7??TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    The ATLAS detector is used to search for excited leptons in the electromagnetic radiative decay channel ?*???. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding ...

  18. Search for contact interactions in dilepton events from pp collisions at ?s = 7 TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton–proton collisions produced by the LHC at ?s = 7 TeV and recorded by the ATLAS detector. The data sample, ...

  19. BEAM TEST of the ATLAS SILICON DETECTOR MODULES with BINARY READOUT in the CERN H8 BEAM in 1996 1

    E-Print Network [OSTI]

    BEAM TEST of the ATLAS SILICON DETECTOR MODULES with BINARY READOUT in the CERN H8 BEAM in 1996 1 F, Spain, 21 Univ. of Wisconsin, Madison, WI, USA ABSTRACT Results are reported from a beam test

  20. Observation of Spin Correlation in tt? Events from pp Collisions at ?s=7??TeV Using the ATLAS Detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A measurement of spin correlation in tt? production is reported using data collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 2.1??fb[superscript -1]. Candidate events are selected ...

  1. Search for extra dimensions using diphoton events in 7 TeV proton–proton collisions with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    Using data recorded in 2011 with the ATLAS detector at the Large Hadron Collider, a search for evidence of extra spatial dimensions has been performed through an analysis of the diphoton final state. The analysis uses data ...

  2. Measurement of the W+W- Cross Section in ?s=7??TeV pp Collisions with ATLAS

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter presents a measurement of the W[superscript +]W[superscript -] production cross section in ?s=7??TeV pp collisions by the ATLAS experiment, using 34??pb[superscript -1] of integrated luminosity produced by the ...

  3. NEW ATLAS9 AND MARCS MODEL ATMOSPHERE GRIDS FOR THE APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT (APOGEE)

    SciTech Connect (OSTI)

    Meszaros, Sz.; Allende Prieto, C.; De Vicente, A.; Edvardsson, B.; Gustafsson, B.; Castelli, F.; Garcia Perez, A. E.; Majewski, S. R.; Plez, B.; Schiavon, R.; Shetrone, M.

    2012-10-01

    We present a new grid of model photospheres for the SDSS-III/APOGEE survey of stellar populations of the Galaxy, calculated using the ATLAS9 and MARCS codes. New opacity distribution functions were generated to calculate ATLAS9 model photospheres. MARCS models were calculated based on opacity sampling techniques. The metallicity ([M/H]) spans from -5 to 1.5 for ATLAS and -2.5 to 0.5 for MARCS models. There are three main differences with respect to previous ATLAS9 model grids: a new corrected H{sub 2}O line list, a wide range of carbon ([C/M]) and {alpha} element [{alpha}/M] variations, and solar reference abundances from Asplund et al. The added range of varying carbon and {alpha}-element abundances also extends the previously calculated MARCS model grids. Altogether, 1980 chemical compositions were used for the ATLAS9 grid and 175 for the MARCS grid. Over 808,000 ATLAS9 models were computed spanning temperatures from 3500 K to 30,000 K and log g from 0 to 5, where larger temperatures only have high gravities. The MARCS models span from 3500 K to 5500 K, and log g from 0 to 5. All model atmospheres are publicly available online.

  4. Scaling up ATLAS production system for the LHC Run 2 and beyond: project ProdSys2

    E-Print Network [OSTI]

    Borodin, Mikhail; The ATLAS collaboration; García Navarro, José Enrique; Golubkov, Dmitry; Klimentov, Alexei; Maeno, Tadashi; Vaniachine, Alexandre

    2015-01-01

    The Big Data processing needs of the ATLAS experiment grow continuously, as more data and more use cases emerge. For Big Data processing the ATLAS experiment adopted the data transformation approach, where software applications transform the input data into outputs. In the ATLAS production system, each data transformation is represented by a task, a collection of many jobs, submitted by the ATLAS workload management system (PanDA) and executed on the Grid. Our experience shows that the rate of tasks submission grows exponentially over the years. To scale up the ATLAS production system for new challenges, we started the ProdSys2 project. PanDA has been upgraded with the Job Execution and Definition Interface (JEDI). Patterns in ATLAS data transformation workflows composed of many tasks, provided a scalable production system framework for template definitions of the many-tasks workflows. These workflows are being implemented in the Database Engine for Tasks (DEfT) that generates individual tasks for processing ...

  5. Proposal for Three Blanket Purchase Agreements for the Supply of Foundry Services for Radiation-Hard Application-Specific Integrated Circuits for the ATLAS and CMS Trackers

    E-Print Network [OSTI]

    1999-01-01

    Proposal for Three Blanket Purchase Agreements for the Supply of Foundry Services for Radiation-Hard Application-Specific Integrated Circuits for the ATLAS and CMS Trackers

  6. Review of Archaeological Atlas of Mycenae by Spyros Iakovidis, Elizabeth B. French, Kim Shelton, Charalambos Ioannides, Anton Jansen, and John Lavery

    E-Print Network [OSTI]

    Younger, John G.

    2010-01-01

    This detailed review of the Mycenae Atlas summarizes the book's main points and supplements the book with important information that is either new or was omitted.

  7. SPECIAL COLLOQUIUM : Building a Commercial Space Launch System and the Role of Space Tourism in the Future (exceptionally on Tuesday)

    ScienceCinema (OSTI)

    None

    2011-04-25

    The talk will explore a little of the history of space launch systems and rocketry, will explain why commercial space tourism did not take off after Apollo, and what is happening right now with commercial space systems such as Virgin's, utilising advances in aerospace technology not exploited by conventional ground-based rocket systems. I will then explain the Virgin Galactic technology, its business plan as a US-regulated space tourism company, and the nature of its applications. I will then go on to say a little of how our system can be utilised for sub-orbital space science based on a commercial business plan

  8. The readiness of the ATLAS Trigger-DAQ system for the second LHC run

    E-Print Network [OSTI]

    Rammensee, Michael; The ATLAS collaboration

    2015-01-01

    After its first shutdown, the Large Hadron Collider (LHC) will provide proton-proton collisions with increased luminosity and energy. In the ATLAS experiment~\\cite{Atlas}, the Trigger and Data Acquisition (TDAQ) system has been upgraded to deal with the increased event rates~\\cite{TDAQPhase1}. The updated system is radically different from the previous implementation, both in terms of architecture and expected performance. The main architecture has been reshaped in order to profit from the technological progress and to maximize the flexibility and efficiency of the data selection process. Design choices and the strategies employed to minimize the data-collection and the selection latency will be discussed. First results of tests done during the commissioning phase and the operational performance after the first months of data taking will be presented.

  9. The ATLAS Distributed Computing project for LHC Run-2 and beyond.

    E-Print Network [OSTI]

    Di Girolamo, Alessandro; The ATLAS collaboration

    2015-01-01

    The ATLAS Distributed Computing infrastructure has evolved after the first period of LHC data taking in order to cope with the challenges of the upcoming LHC Run2. An increased data rate and computing demands of the Monte-Carlo simulation, as well as new approaches to ATLAS analysis, dictated a more dynamic workload management system (ProdSys2) and data management system (Rucio), overcoming the boundaries imposed by the design of the old computing model. In particular, the commissioning of new central computing system components was the core part of the migration toward the flexible computing model. The flexible computing utilization exploring the opportunistic resources such as HPC, cloud, and volunteer computing is embedded in the new computing model, the data access mechanisms have been enhanced with the remote access, and the network topology and performance is deeply integrated into the core of the system. Moreover a new data management strategy, based on defined lifetime for each dataset, has been defin...

  10. ATLAS strategy for primary vertex reconstruction during Run-II of the LHC

    E-Print Network [OSTI]

    ATLAS Collaboration; The ATLAS collaboration

    2015-01-01

    Based on experience gained from run-I of the LHC, the ATLAS vertex reconstruction group has developed a refined primary vertex reconstruction strategy for run-II.  With instantaneous luminosity exceeding 10^34 cm-2 s-1, an average of 40 to 50 pp collisions per bunch crossing are expected. Together with the increase of the center-of-mass collision energy from 8 TeV to 13 TeV, this will create a challenging environment for primary vertex pattern recognition. This contribution explains the ATLAS strategy for primary vertex reconstruction in high pile-up conditions.  The new approach is based on vertex seeding with a medical-imaging algorithm, adaptive reconstruction of vertex positions, and iterative recombination of occasional split vertices. The mathematical foundation and software implementation of the method are described in detail. Monte Carlo-based estimates of vertex reconstruction performance for LHC run-II are presented.

  11. 20.5 kA current leads for ATLAS Barrel Toroid superconducting magnets

    E-Print Network [OSTI]

    Dudarev, A; Boxman, E W; Keilin, V E; Kopeikin, N P; Kovalev, I A; Kuljamzin, A N; Romanovski, V G; Shcherbakov, V I; Shugaev, I; Stepanov, V V

    2002-01-01

    Three pairs of 20.5 kA current leads for the ATLAS Toroid Magnets have been designed, manufactured and tested at Kurchatov Institute. The current leads have a high mechanical reliability and the vacuum tightness under 30 bars of internal pressure. The insulation between the current carrying parts and the mounting flange, the hydraulic connections and the temperature gauges withstand the overvoltage of at least 2 kV. The current leads are fully equipped with diagnostics needed for safety and control. The current leads were tested up to 24 kA. According to CERN's specification they were also tested in the absence of any cooling at very slow current discharge rate (5 A/s) from 20.5 kA to zero without any excessive overheating. Nowadays the current leads are successfully used at the ATLAS Magnet Test Facility at CERN. (6 refs).

  12. Commissioning and Performance of the ATLAS Transition Radiation Tracker with high energy collisions at LHC

    E-Print Network [OSTI]

    Alonso, A; The ATLAS collaboration

    2011-01-01

    The ATLAS Transition Radiation Tracker (TRT) is the outermost of the three sub-systems of the ATLAS Inner Detector at the Large Hadron Collider at CERN. It consists of close to 300,000 thin-wall drift-tubes (straws) providing on average 30 two-dimensional space points for charged particle tracks. The straws have 0.13 mm resolution and measure tracks with $ ert eta ert 0.5 GeV$. Along with continuous tracking, it provides particle identification capability through the detection of transition radiation X-ray photons generated by high Lorenz gamma particles in the many polymer fibers or films that fill the spaces between the straws. In this talk, a review of the commissioning and first operational experience of the TRT detector will be presented. Emphasis will be given to performance studies based on the reconstruction and analysis of LHC proton-proton collisions.

  13. The ATLAS Experiment: Mapping the Secrets of the Universe (LBNL Summer Lecture Series)

    ScienceCinema (OSTI)

    Barnett, Michael

    2011-04-28

    Summer Lecture Series 2007: Michael Barnett of Berkeley Lab's Physics Division discusses the ATLAS Experiment at the European Laboratory for Particle Physics' (CERN) Large Hadron Collider. The collider will explore the aftermath of collisions at the highest energy ever produced in the lab, and will recreate the conditions of the universe a billionth of a second after the Big Bang. The ATLAS detector is half the size of the Notre Dame Cathedral and required 2000 physicists and engineers from 35 countries for its construction. Its goals are to examine mini-black holes, identify dark matter, understand antimatter, search for extra dimensions of space, and learn about the fundamental forces that have shaped the universe since the beginning of time and will determine its fate.

  14. Resource control in ATLAS distributed data management: Rucio Accounting and Quotas

    E-Print Network [OSTI]

    Barisits, Martin-Stefan; The ATLAS collaboration; Garonne, Vincent; Lassnig, Mario; Beermann, Thomas Alfons; Vigne, Ralph

    2015-01-01

    The ATLAS Distributed Data Management system manages more than 160PB of physics data across more than 130 sites globally. Rucio, the next generation Distributed Data Management system of the ATLAS experiment, replaced DQ2 in December 2014 and will manage the experiments data throughout Run 2 of the LHC and beyond. The previous data management system pursued a rather simplistic approach for resource management, but with the increased data volume and more dynamic handling of data workflows required by the experiment, a more elaborate approach to this issue is needed. Rucio was delivered with an initial quota system, but during the first months of operation it turned out to not fully satisfy the collaborations resource management needs. We consequently introduce a new concept of declaring quota policies (limits) for accounts in Rucio. This new quota concept is based on accounts and RSE (Rucio storage element) expressions, which allows the definition of hierarchical quotas in a dynamic way. This concept enables t...

  15. Resource control in ATLAS distributed data management: Rucio Accounting and Quotas

    E-Print Network [OSTI]

    Barisits, Martin-Stefan; The ATLAS collaboration

    2015-01-01

    The ATLAS Distributed Data Management system stores more than 160PB of physics data across more than 130 sites globally. Rucio, the next-generation data management system of ATLAS has been introduced to cope with the anticipated workload of the coming decade. The previous data management system DQ2 pursued a rather simplistic approach for resource management, but with the increased data volume and more dynamic handling of data workflows required by the experiment, a more elaborate approach to this issue is needed. This document describes how resources, like storage, accounts and replication requests, are accounted in Rucio. Especially the measurement of used logical storage space is fundamentally different in Rucio than it’s predecessor DQ2. We introduce a new concept of declaring quota policies (limits) for accounts in Rucio. This new quota concept is based on accounts and RSE (Rucio storage element) expressions, which allows the definition of account limits in a dynamic way. This concept enables the opera...

  16. The importance of having an appropriate relational data segmentation in ATLAS

    E-Print Network [OSTI]

    Dimitrov, Gancho; The ATLAS collaboration

    2015-01-01

    In this paper we describe specific technical solutions put in place in various database applications of the ATLAS experiment at LHC where we make use of several partitioning techniques available in Oracle 11g. With the broadly used range partitioning and its option of automatic interval partitioning we add our own logic in PLSQL procedures and scheduler jobs to sustain data sliding windows in order to enforce various data retention policies. We also make use of the new Oracle 11g reference partitioning in the Nightly Build System to achieve uniform data segmentation. However the most challenging issue was to segment the data of the new ATLAS Distributed Data Management system (Rucio), which resulted in tens of thousands list type partitions and sub-partitions. Partition and sub-partition management, index strategy, statistics gathering and queries execution plan stability are important factors when choosing an appropriate physical model for the application data management. The so-far accumulated knowledge and...

  17. The Performance and Development of the Inner Detector Trigger Algorithms at ATLAS for LHC Run 2

    E-Print Network [OSTI]

    Sowden, Benjamin Charles; The ATLAS collaboration

    2015-01-01

    A description of the design and performance of the newly reimplemented tracking algorithms for the ATLAS trigger for LHC Run 2, to commence in spring 2015, is provided. The ATLAS High Level Trigger (HLT) has been restructured to run as a more flexible single stage process, rather than the two separate Level 2 and Event Filter stages used during Run 1. To make optimal use of this new scenario, a new tracking strategy has been implemented for Run 2 for the HLT. This new strategy will use a Fast Track Finder (FTF) algorithm to directly seed the subsequent Precision Tracking, and will result in improved track parameter resolution and significantly faster execution times than achieved during Run 1 but with no significant reduction in efficiency. The performance and timing of the algorithms for numerous physics signatures in the trigger are presented. The profiling infrastructure, constructed to provide prompt feedback from the optimisation, is described, including the methods used to monitor the relative performan...

  18. Performance and development for the Inner Detector Trigger Algorithms at ATLAS

    E-Print Network [OSTI]

    Penc, Ondrej; The ATLAS collaboration

    2015-01-01

    A redesign of the tracking algorithms for the ATLAS trigger for Run 2 starting in spring 2015 is in progress. The ATLAS HLT software has been restructured to run as a more flexible single stage HLT, instead of two separate stages (Level 2 and Event Filter) as in Run 1. The new tracking strategy employed for Run 2 will use a Fast Track Finder (FTF) algorithm to seed subsequent Precision Tracking, and will result in improved track parameter resolution and faster execution times than achieved during Run 1. The performance of the new algorithms has been evaluated to identify those aspects where code optimisation would be most beneficial. The performance and timing of the algorithms for electron and muon reconstruction in the trigger are presented. The profiling infrastructure, constructed to provide prompt feedback from the optimisation, is described, including the methods used to monitor the relative performance improvements as the code evolves.

  19. Fine grained event processing on HPCs with the ATLAS Yoda system

    E-Print Network [OSTI]

    Calafiura, Paolo; The ATLAS collaboration; Guan, Wen; Maeno, Tadashi; Nilsson, Paul; Oleynik, Danila; Panitkin, Sergey; Tsulaia, Vakhtang; van Gemmeren, Peter; Wenaus, Torre

    2015-01-01

    High performance computing facilities present unique challenges and opportunities for HENP event processing. The massive scale of many HPC systems means that fractionally small utilizations can yield large returns in processing throughput. Parallel applications which can dynamically and efficiently fill any scheduling opportunities the resource presents benefit both the facility (maximal utilization) and the (compute-limited) science. The ATLAS Yoda system provides this capability to HENP-like event processing applications by implementing event-level processing in an MPI-based master-client model that integrates seamlessly with the more broadly scoped ATLAS Event Service. Fine grained, event level work assignments are intelligently dispatched to parallel workers to sustain full utilization on all cores, with outputs streamed off to destination object stores in near real time with similarly fine granularity, such that processing can proceed until termination with full utilization. The system offers the efficie...

  20. L1 track triggers for ATLAS in the HL-LHC

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lipeles, E.

    2012-01-01

    The HL-LHC, the planned high luminosity upgrade for the LHC, will increase the collision rate in the ATLAS detector approximately a factor of 5 beyond the luminosity for which the detectors were designed, while also increasing the number of pile-up collisions in each event by a similar factor. This means that the level-1 trigger must achieve a higher rejection factor in a more difficult environment. This presentation discusses the challenges that arise in this environment and strategies being considered by ATLAS to include information from the tracking systems in the level-1 decision. The main challenges involve reducing the data volumemore »exported from the tracking system for which two options are under consideration: a region of interest based system and an intelligent sensor method which filters on hits likely to come from higher transverse momentum tracks.« less

  1. PanDA Beyond ATLAS: Workload Management for Data Intensive Science

    E-Print Network [OSTI]

    Schovancova, J; The ATLAS collaboration; Klimentov, A; Maeno, T; Nilsson, P; Oleynik, D; Panitkin, S; Petrosyan, A; Vaniachine, A; Wenaus, T; Yu, D

    2013-01-01

    The PanDA Production ANd Distributed Analysis system has been developed by ATLAS to meet the experiment's requirements for a data-driven workload management system for production and distributed analysis processing capable of operating at LHC data processing scale. After 7 years of impressively successful PanDA operation in ATLAS there are also other experiments which can benefit from PanDA in the Big Data challenge, with several at various stages of evaluation and adoption. The new project "Next Generation Workload Management and Analysis System for Big Data" is extending PanDA to meet the needs of other data intensive scientific applications in HEP, astro-particle and astrophysics communities, bio-informatics and other fields as a general solution to large scale workload management. PanDA can utilize dedicated or opportunistic computing resources such as grids, clouds, and High Performance Computing facilities, and is being extended to leverage next generation intelligent networks in automated workflow mana...

  2. Final technical evaluation report for the proposed revised reclamation plan for the Atlas Corporation Moab Mill

    SciTech Connect (OSTI)

    NONE

    1997-03-01

    This final Technical Evaluation Report (TER) summarizes the US Nuclear Regulatory Commission staff`s review of Atlas Corporation`s proposed reclamation plan for its uranium mill tailings pile near Moab, Utah. The proposed reclamation would allow Atlas to (1) reclaim the tailings pile for permanent disposal and long-term custodial care by a government agency in its current location on the Moab site, (2) prepare the site for closure, and (3) relinquish responsibility of the site after having its NRC license terminated. The NRC staff concludes that, subject to license conditions identified in the TER, the proposed reclamation plan meets the requirements identified in NRC regulations, which appear primarily in 10 CFR Part 40. 112 refs., 6 figs., 16 tabs.

  3. New data access with HTTP/WebDAV in the ATLAS experiment

    E-Print Network [OSTI]

    Elmsheuser, Johannes; The ATLAS collaboration; Serfon, Cedric; Garonne, Vincent; Blunier, Sylvain; Lavorini, Vincenzo; Nilsson, Paul

    2015-01-01

    With the exponential growth of LHC (Large Hadron Collider) data in the years 2010-2012, distributed computing has become the established way to analyse collider data. The ATLAS experiment Grid infrastructure includes more than 130 sites worldwide, ranging from large national computing centres to smaller university clusters. So far the storage technologies and access protocols to the clusters that host this tremendous amount of data vary from site to site. HTTP/WebDAV offers the possibility to use a unified industry standard to access the storage. We present the deployment and testing of HTTP/WebDAV for local and remote data access in the ATLAS experiment for the new data management system Rucio and the PanDA workload management system. Deployment and large scale tests have been performed using the Grid testing system HammerCloud and the ROOT HTTP plugin Davix.

  4. New data access with HTTP/WebDAV in the ATLAS experiment

    E-Print Network [OSTI]

    Elmsheuser, Johannes; The ATLAS collaboration; Serfon, Cedric; Garonne, Vincent; Blunier, Sylvain; Lavorini, Vincenzo; Nilsson, Paul

    2015-01-01

    With the exponential growth of LHC (Large Hadron Collider) data in the years 2010-2012, distributed computing has become the established way to analyze collider data. The ATLAS experiment Grid infrastructure includes more than 130 sites worldwide, ranging from large national computing centres to smaller university clusters. So far the storage technologies and access protocols to the clusters that host this tremendous amount of data vary from site to site. HTTP/WebDAV offers the possibility to use a unified industry standard to access the storage. We present the deployment and testing of HTTP/WebDAV for local and remote data access in the ATLAS experiment for the new data management system Rucio and the PanDA workload management system. Deployment and large scale tests have been performed using the Grid testing system HammerCloud and the ROOT HTTP plugin Davix.

  5. The monitoring and data quality assessment of the ATLAS liquid argon calorimeter

    E-Print Network [OSTI]

    Simard, O; The ATLAS collaboration

    2014-01-01

    The ATLAS experiment is designed to study the proton-proton ($pp$) collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon (LAr) sampling calorimeters are used for all electromagnetic calorimetry in the pseudo-rapidity region $|\\eta|housed in three cryostats maintained at about 88.5~K. The 182,468 cells are read out via front-end boards housed in on-detector crates that also contain monitoring, calibration, trigger and t...

  6. The monitoring and data quality assessment of the ATLAS liquid argon calorimeter

    E-Print Network [OSTI]

    Simard, O; The ATLAS collaboration

    2014-01-01

    The ATLAS experiment is designed to study the proton-proton collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon (LAr) sampling calorimeters are used for all electromagnetic calorimetry in the pseudo-rapidity region |?|housed in three cryostats maintained at about 88.5K. The approximately 200K cells are read out via front-end boards housed in on-detector crates that also contain monitoring, calibration, trigg...

  7. Top quark pair production measurements using the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Trincaz-Duvoid, Sophie; The ATLAS collaboration

    2015-01-01

    Inclusive and differential cross sections of top quark pair production at have been measured with the ATLAS detector at the LHC at ?s = 7 TeV and ?s = 8 TeV. Inclusive measurements are in good agreement with Standard Model predictions. Differential cross section measurements are compared to different sets of generators, parton showering and hadronization simulations, PDF and calculations. This provides constraints to improve the MC modeling.

  8. Search for monotop events using the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Timothée Theveneaux-Pelzer

    2014-12-11

    A search for the production of single-top-quarks in association with missing energy performed in proton-proton collisions at a centre-of-mass energy of $\\sqrt{s}=8$ TeV with the ATLAS experiment is presented. No deviation from the Standard Model prediction is observed, and upper limits are set on the production cross-section for resonant and non-resonant production of an invisible exotic state in association with a right-handed top quark.

  9. Webinar: Demonstration of NREL's BioEnergy Atlas Tools | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar: Demonstration of NREL's BioEnergy Atlas Tools Webinar:

  10. Alignment of the ATLAS inner detector for the LHC Run II

    E-Print Network [OSTI]

    Butti, Pierfrancesco; The ATLAS collaboration

    2015-01-01

    ATLAS a multipurpose experiment at the LHC proton-proton collider. Its physics goals require high resolution, unbiased measurement of all charged particle kinematic parameters. These critically depend on the layout and performance of the tracking system, notably quality of its offline alignment. ATLAS is equipped with a tracking system built using different technologies, silicon planar sensors (pixel and micro-strip) and gaseous drift- tubes, all embedded in a 2T solenoidal magnetic field. For the LHC Run II, the system has been upgraded with the installation of a new pixel layer, the Insertable B-layer (IBL). Offline track alignment of the ATLAS tracking system has to deal with about 700,000 degrees of freedom (DoF) defining its geometrical parameters. The task requires using very large data sets and represents a considerable numerical challenge in terms of both CPU time and precision. The adopted strategy uses a hierarchical approach to alignment, combining local and global least squares techniques. An outl...

  11. The Evolution of the Region of Interest Builder in the ATLAS Experiment

    E-Print Network [OSTI]

    Blair, Robert; The ATLAS collaboration; Green, Barry; Love, Jeremy; Proudfoot, James; Rifki, Othmane; Panduro Vazquez, Jose Guillermo; Zhang, Jinlong

    2015-01-01

    ATLAS is a general purpose particle detector at the Large Hadron Collider (LHC) at CERN designed to measure the products of proton collisions. Given their high interaction rate (1GHz), selective triggering in real time is required to reduce the rate to the experiment’s data storage capacity (1KHz). To meet this requirement, ATLAS employs a combination of hardware and software triggers to select interesting collisions for physics analysis. The Region of Interest Builder (RoIB) is an integral part of the ATLAS detector Trigger and Data Acquisition (TDAQ) chain where the coordinates of the regions of interest (RoIs) identified by the first level trigger (L1) are collected and passed to the High Level Trigger (HLT) to make a decision. While the current custom RoIB operated reliably during the first run of the LHC, it is desirable to have the RoIB more operationally maintainable in the new run, which will reach higher luminosities with an increased complexity of L1 triggers. We are responsible for migrating the ...

  12. The Evolution of the Region of Interest Builder in the ATLAS Experiment at CERN

    E-Print Network [OSTI]

    Rifki, Othmane; The ATLAS collaboration; Crone, Gordon Jeremy; Green, Barry; Love, Jeremy; Proudfoot, James; Panduro Vazquez, William; Vandelli, Wainer; Zhang, Jinlong

    2015-01-01

    ATLAS is a general purpose particle detector at the Large Hadron Collider (LHC) at CERN designed to measure the products of proton collisions. Given their high interaction rate (1GHz), selective triggering in real time is required to reduce the rate to the experiment’s data storage capacity (1KHz). To meet this requirement, ATLAS employs a combination of hardware and software triggers to select interesting collisions for physics analysis. The Region of Interest Builder (RoIB) is an integral part of the ATLAS detector Trigger and Data Acquisition (TDAQ) chain where the coordinates of the regions of interest (RoIs) identified by the first level trigger (L1) are collected and passed to the High Level Trigger (HLT) to make a decision. While the current custom RoIB operated reliably during the first run of the LHC, it is desirable to have the RoIB more operationally maintainable in the new run, which will reach higher luminosities with an increased complexity of L1 triggers. We are responsible for migrating the ...

  13. The Upgrade and Performance of the ATLAS Electron and Photon Triggers towards Run II

    E-Print Network [OSTI]

    Reichert, Joseph; The ATLAS collaboration

    2015-01-01

    Electron and photon triggers are essential for signal selection in a wide variety of ATLAS physics analyses to study Standard Model processes and to search for new phenomena. Final states including leptons and photons had, for example, an important role in the discovery and measurement of the Higgs particle. Dedicated triggers are also used for the collection of J/? ?e+ e? , W? e? and QCD background samples for calibration, efficiency and fake rate measurements. The ATLAS trigger system is divided in a hardware-based (Level 1) and a software based high level trigger, both of which were upgraded during the long shutdown of the LHC in preparation for data taking in 2015. The increasing luminosity and more challenging pile-up conditions as well as the planned higher centre-of-mass energy demanded the optimisation of the trigger selections at each level to control the rates and keep efficiencies high. The evolution of the ATLAS electron and photon triggers and their performance will be presented, includin...

  14. The Upgrade of the ATLAS Electron and Photon Triggers towards LHC Run 2 and their Performance

    E-Print Network [OSTI]

    Kahn, Sebastien Jonathan; The ATLAS collaboration

    2015-01-01

    Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for signal selection in a wide variety of ATLAS physics analyses to study Standard Model processes and to search for new phenomena. Final states including leptons and photons had, for example, an important role in the discovery and measurement of the Higgs particle. Dedicated triggers are also used to collect data for calibration, efficiency and fake rate measurements. The ATLAS trigger system is divided in a hardware-based (Level 1) and a software based high level trigger, both of which were upgraded during the long shutdown of the LHC in preparation for data taking in 2015. The increasing luminosity and more challenging pile-up conditions as well as the planned higher center-of-mass energy demanded the optimisation of the trigger selections at each level to control the rates and keep efficiencies high. The evolution of the ATLAS electron and photon triggers and their performance will be presented, including ini...

  15. The ATLAS Inner Detector operation,data quality and tracking performance.

    E-Print Network [OSTI]

    Stanecka, E; The ATLAS collaboration

    2012-01-01

    The ATLAS Inner Detector comprises silicon and gas based detectors. The Semi-Conductor Tracker (SCT) and the Pixel Detector are the key precision tracking silicon devices in the Inner Detector of the ATLAS experiment at CERN LHC. And the the Transition Radiation Tracker (TRT), the outermost of the three subsystems of the ATLAS Inner Detector is made of thin-walled proportional-mode drift tubes (straws). The Pixel Detector consists of approximately 80 million pixels that are individually read out via chips bump-bonded to 1744 n-in-n silicon substrates. The SCT is a silicon strip detector and is constructed of 4088 silicon detector modules for a total of 6.3 million strips. Each module is designed, constructed and tested to operate as a stand-alone unit, mechanically, electrically, optically and thermally. The SCT silicon micro-strip sensors are processed in the planar p-in-n technology. The signals from the strips are processed in the front-end ASICS ABCD3TA, working in the binary readout mode. The TRT is made...

  16. Top quark pair properties using the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Barone, Gaetano; The ATLAS collaboration

    2015-01-01

    Top quark pair properties using the ATLAS detector at the LHC The latest measurements of the properties of the top quark using the ATLAS experiment are presented. The top quark mass is one of the fundamental parameters of the Standard Model. A measurement based on a multi­dimensional template fit that can constrain the uncertainties on the energy measurements of jets is presented and combined with a measurement using dilepton events. In addition, novel measurements aiming to measure the mass in a well­defined scheme are presented. The top quark pair charge asymmetry is an asymmetry predicted to occur beyond leading­order QCD in the Standard Model, and may be significantly enhanced by the presence of new physics. The ttbar production charge asymmetry is measured inclusively and differentially using the 7 and 8 TeV ATLAS datasets. Making use of the large number of top quark pairs collected, we also present measurements of the spin correlation between top and anti­top quarks and discuss their sensitivities t...

  17. Searches for beyond the Standard Model physics with boosted topologies in the ATLAS experiment using the Grid-based Tier-3 facility at IFIC-Valencia

    E-Print Network [OSTI]

    Villaplana Pérez, Miguel; Vos, Marcel

    Both the LHC and ATLAS have been performing well beyond expectation since the start of the data taking by the end of 2009. Since then, several thousands of millions of collision events have been recorded by the ATLAS experiment. With a data taking efficiency higher than 95% and more than 99% of its channels working, ATLAS supplies data with an unmatched quality. In order to analyse the data, the ATLAS Collaboration has designed a distributed computing model based on GRID technologies. The ATLAS computing model and its evolution since the start of the LHC is discussed in section 3.1. The ATLAS computing model groups the different types of computing centers of the ATLAS Collaboration in a tiered hierarchy that ranges from Tier-0 at CERN, down to the 11 Tier-1 centers and the nearly 80 Tier-2 centres distributed world wide. The Spanish Tier-2 activities during the first years of data taking are described in section 3.2. Tier-3 are institution-level non-ATLAS funded or controlled centres that participate presuma...

  18. Production and Test of the ATLAS Hadronic Calorimeter Digitizer S. Berglund, C. Bohm, K. Jon-And, J. Klereborn, M. Ramstedt and B. Selldn

    E-Print Network [OSTI]

    Production and Test of the ATLAS Hadronic Calorimeter Digitizer S. Berglund, C. Bohm, K. Jon-And, J The pre-production stage of the full-scale production of the ATLAS TileCal digitizer started during. All components are radiation tested before start of production. After mounting components all

  19. ATLAS off-Grid sites (Tier 3) monitoring. From local fabric monitoring to global overview of the VO computing activities

    E-Print Network [OSTI]

    PETROSYAN, A; The ATLAS collaboration; BELOV, S; ANDREEVA, J; KADOCHNIKOV, I

    2012-01-01

    The ATLAS Distributed Computing activities have so far concentrated in the "central" part of the experiment computing system, namely the first 3 tiers (the CERN Tier0, 10 Tier1 centers and over 60 Tier2 sites). Many ATLAS Institutes and National Communities have deployed (or intend to) deploy Tier-3 facilities. Tier-3 centers consist of non-pledged resources, which are usually dedicated to data analysis tasks by the geographically close or local scientific groups, and which usually comprise a range of architectures without Grid middleware. Therefore a substantial part of the ATLAS monitoring tools which make use of Grid middleware, cannot be used for a large fraction of Tier3 sites. The presentation will describe the T3mon project, which aims to develop a software suite for monitoring the Tier3 sites, both from the perspective of the local site administrator and that of the ATLAS VO, thereby enabling the global view of the contribution from Tier3 sites to the ATLAS computing activities. Special attention in p...

  20. Experimental and code simulation of a station blackout scenario for APR1400 with test facility ATLAS and MARS code

    SciTech Connect (OSTI)

    Yu, X. G.; Kim, Y. S.; Choi, K. Y.; Park, H. S.; Cho, S.; Kang, K. H.; Choi, N. H. [Thermal-hydraulic Safety Research Div., KAERI Korea Atomic Energy Research Inst., Dae-deok Dae-ro 989-111, Yuseong-gu, Daejeon (Korea, Republic of)

    2012-07-01

    A SBO (station blackout) experiment named SBO-01 was performed at full-pressure IET (Integral Effect Test) facility ATLAS (Advanced Test Loop for Accident Simulation) which is scaled down from the APR1400 (Advanced Power Reactor 1400 MWe). In this study, the transient of SBO-01 is discussed and is subdivided into three phases: the SG fluid loss phase, the RCS fluid loss phase, and the core coolant depletion and core heatup phase. In addition, the typical phenomena in SBO-01 test - SG dryout, natural circulation, core coolant boiling, the PRZ full, core heat-up - are identified. Furthermore, the SBO-01 test is reproduced by the MARS code calculation with the ATLAS model which represents the ATLAS test facility. The experimental and calculated transients are then compared and discussed. The comparison reveals there was malfunction of equipments: the SG leakage through SG MSSV and the measurement error of loop flow meter. As the ATLAS model is validated against the experimental results, it can be further employed to investigate the other possible SBO scenarios and to study the scaling distortions in the ATLAS. (authors)

  1. WIND-DRIVEN ACCRETION IN PROTOPLANETARY DISKS. I. SUPPRESSION OF THE MAGNETOROTATIONAL INSTABILITY AND LAUNCHING OF THE MAGNETOCENTRIFUGAL WIND

    SciTech Connect (OSTI)

    Bai Xuening; Stone, James M., E-mail: xbai@cfa.harvard.edu [Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544 (United States)

    2013-05-20

    We perform local, vertically stratified shearing-box MHD simulations of protoplanetary disks (PPDs) at a fiducial radius of 1 AU that take into account the effects of both Ohmic resistivity and ambipolar diffusion (AD). The magnetic diffusion coefficients are evaluated self-consistently from a look-up table based on equilibrium chemistry. We first show that the inclusion of AD dramatically changes the conventional picture of layered accretion. Without net vertical magnetic field, the system evolves into a toroidal field dominated configuration with extremely weak turbulence in the far-UV ionization layer that is far too inefficient to drive rapid accretion. In the presence of a weak net vertical field (plasma {beta} {approx} 10{sup 5} at midplane), we find that the magnetorotational instability (MRI) is completely suppressed, resulting in a fully laminar flow throughout the vertical extent of the disk. A strong magnetocentrifugal wind is launched that efficiently carries away disk angular momentum and easily accounts for the observed accretion rate in PPDs. Moreover, under a physical disk wind geometry, all the accretion flow proceeds through a strong current layer with a thickness of {approx}0.3H that is offset from disk midplane with radial velocity of up to 0.4 times the sound speed. Both Ohmic resistivity and AD are essential for the suppression of the MRI and wind launching. The efficiency of wind transport increases with increasing net vertical magnetic flux and the penetration depth of the FUV ionization. Our laminar wind solution has important implications on planet formation and global evolution of PPDs.

  2. based on 2002-2008 re-analysis | Arshad Rawat Atlas of Physical Oceanographic Parameters

    E-Print Network [OSTI]

    launched the "African Monitoring of the Environment for a Sustainable Development" (AMESD) program) or Global Monitoring Environment and Security (GMES)-Africa and finally (iv) to develop human resources, for the monitoring of their marine resources and the definition of their marine policies. One of the services

  3. Selection of jets produced in 13TeV proton-proton collisions with the ATLAS detector

    E-Print Network [OSTI]

    The ATLAS collaboration

    2015-01-01

    Quality criteria for the selection of reconstructed anti-$k_t$ jets with $R = 0.4$ in the ATLAS detector are described. The study is based on data recorded in June 2015 by the ATLAS experiment in $\\sqrt{s}$ = 13 TeV protonâproton collisions at the Large Hadron Collider, with a total integrated luminosity of 6.4 pb$^{?1}$. Two selection criteria are introduced. The Loose selection is designed to provide an efficiency of selecting jets from proton-proton collisions above 99.5% (99.9%) for $p_T>$ 20 (100) GeV to be used in most ATLAS physics analyses. A tighter set of selection cuts, called Tight, is designed to further reject background jets for analyses sensitive to non-collision backgrounds with an efficiency of selecting jets from proton-proton collisions above 95% (99.5%) for $p_T>$ 20 (100) GeV.

  4. Searches for non-MSSM top/bottom quark partners with the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Guo, Jun; The ATLAS collaboration

    2015-01-01

    The naturalness is a paradigm for theories beyond the Standard Model (BSM), incorporating mechanism to cancel mass divergence for the Higgs boson. The presence of fermionic top/bottom quark partners, usually referred to as vector-like quarks (VLQs), may be an important ingredient for such mechanism in non-SUSY scenarios. Searches for vector-like quarks have been performed in various final states at the ATLAS experiment. This talk highlights recent VLQ searches at ATLAS with LHC Run 1 data. First LHC Run-2 results will be included if available.

  5. Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum

    E-Print Network [OSTI]

    Daniel Abercrombie; Nural Akchurin; Ece Akilli; Juan Alcaraz Maestre; Brandon Allen; Barbara Alvarez Gonzalez; Jeremy Andrea; Alexandre Arbey; Georges Azuelos; Patrizia Azzi; Mihailo Backovi?; Yang Bai; Swagato Banerjee; James Beacham; Alexander Belyaev; Antonio Boveia; Amelia Jean Brennan; Oliver Buchmueller; Matthew R. Buckley; Giorgio Busoni; Michael Buttignol; Giacomo Cacciapaglia; Regina Caputo; Linda Carpenter; Nuno Filipe Castro; Guillelmo Gomez Ceballos; Yangyang Cheng; John Paul Chou; Arely Cortes Gonzalez; Chris Cowden; Francesco D'Eramo; Annapaola De Cosa; Michele De Gruttola; Albert De Roeck; Andrea De Simone; Aldo Deandrea; Zeynep Demiragli; Anthony DiFranzo; Caterina Doglioni; Tristan du Pree; Robin Erbacher; Johannes Erdmann; Cora Fischer; Henning Flaecher; Patrick J. Fox; Benjamin Fuks; Marie-Helene Genest; Bhawna Gomber; Andreas Goudelis; Johanna Gramling; John Gunion; Kristian Hahn; Ulrich Haisch; Roni Harnik; Philip C. Harris; Kerstin Hoepfner; Siew Yan Hoh; Dylan George Hsu; Shih-Chieh Hsu; Yutaro Iiyama; Valerio Ippolito; Thomas Jacques; Xiangyang Ju; Felix Kahlhoefer; Alexis Kalogeropoulos; Laser Seymour Kaplan; Lashkar Kashif; Valentin V. Khoze; Raman Khurana; Khristian Kotov; Dmytro Kovalskyi; Suchita Kulkarni; Shuichi Kunori; Viktor Kutzner; Hyun Min Lee; Sung-Won Lee; Seng Pei Liew; Tongyan Lin; Steven Lowette; Romain Madar; Sarah Malik; Fabio Maltoni; Mario Martinez Perez; Olivier Mattelaer; Kentarou Mawatari; Christopher McCabe; Théo Megy; Enrico Morgante; Stephen Mrenna; Siddharth M. Narayanan; Andy Nelson; Sérgio F. Novaes; Klaas Ole Padeken; Priscilla Pani; Michele Papucci; Manfred Paulini; Christoph Paus; Jacopo Pazzini; Björn Penning; Michael E. Peskin; Deborah Pinna; Massimiliano Procura; Shamona F. Qazi; Davide Racco; Emanuele Re; Antonio Riotto; Thomas G. Rizzo; Rainer Roehrig; David Salek; Arturo Sanchez Pineda; Subir Sarkar; Alexander Schmidt; Steven Randolph Schramm; William Shepherd; Gurpreet Singh; Livia Soffi; Norraphat Srimanobhas; Kevin Sung; Tim M. P. Tait; Timothee Theveneaux-Pelzer; Marc Thomas; Mia Tosi; Daniele Trocino; Sonaina Undleeb; Alessandro Vichi; Fuquan Wang; Lian-Tao Wang; Ren-Jie Wang; Nikola Whallon; Steven Worm; Mengqing Wu; Sau Lan Wu; Hongtao Yang; Yong Yang; Shin-Shan Yu; Bryan Zaldivar; Marco Zanetti; Zhiqing Zhang; Alberto Zucchetta

    2015-07-03

    This document is the final report of the ATLAS-CMS Dark Matter Forum, a forum organized by the ATLAS and CMS collaborations with the participation of experts on theories of Dark Matter, to select a minimal basis set of dark matter simplified models that should support the design of the early LHC Run-2 searches. A prioritized, compact set of benchmark models is proposed, accompanied by studies of the parameter space of these models and a repository of generator implementations. This report also addresses how to apply the Effective Field Theory formalism for collider searches and present the results of such interpretations.

  6. Follow Water Quality Robots on Twitter On May 9, 2012, UC Berkeley researchers launched a fleet of 100 water quality sensors into

    E-Print Network [OSTI]

    with water control boards. #12;Up to Top Nature Art: Patterns A Massive Starling Murmuration Becomes "A Real05/22/2012 Follow Water Quality Robots on Twitter On May 9, 2012, UC Berkeley researchers launched a fleet of 100 water quality sensors into Northern California's Sacramento River. Designed to track water

  7. The updated ATLAS Jet Trigger for the LHC Run~II

    E-Print Network [OSTI]

    Sebastien Prince; for the ATLAS collaboration

    2015-11-03

    After the current shutdown, the LHC is about to resume operation for a new data-taking period, when it will operate with increased luminosity, event rate and center of mass energy. The new conditions will impose more demanding constraints on the ATLAS online trigger reconstruction and selection system. To cope with such increased constraints, the ATLAS High-Level Trigger, placed after a first hardware-based Level~1 trigger, has been redesigned by merging two previously separated software-based processing levels. In the new joint processing level, the algorithms run in the same computing nodes, thus sharing resources, minimizing the data transfer from the detector buffers and increasing the algorithm flexibility. The jet trigger software selects events containing high transverse momentum hadronic jets. It needs optimal jet energy resolution to help rejecting an overwhelming background while retaining good efficiency for interesting jets. In particular, this requires the CPU-intensive reconstruction of tridimensional energy deposits in the ATLAS calorimeter to be used as the basic input to the jet finding algorithms. To allow this costly reconstruction step, a partial detector readout scheme was developed, that effectively suppresses the low activity regions of the calorimeter and significantly reduces the needed resources. In this paper we describe the overall jet trigger software and its physics performance. We then focus on detailed studies of the algorithm timing and the performance impact of the full and partial calorimeter readout schemes. We conclude with an outlook of the jet trigger plans for the next LHC data-taking period.

  8. The Phase-1 Upgrade of the ATLAS First Level Calorimeter Trigger

    E-Print Network [OSTI]

    Schwienhorst, Reinhard; The ATLAS collaboration

    2015-01-01

    The ATLAS level-1 calorimeter trigger pursues a series of upgrades in order to face the challenges posed by the upcoming increase of the LHC luminosity. The hardware built during the Phase-1 upgrade will be installed in 2018. The calorimeter data will be available with a tenfold increase of granularity which allows to employ more sophisticated identification algorithms. To cope with this increase of input data, an entirely new custom electronics processing system will be built exploiting the technological advances in the design of complex PCBs, powerful FPGAs, new crate technologies and high speed optical interconnects.

  9. A new approach to front-end electronics interfacing in the ATLAS experiment

    E-Print Network [OSTI]

    Anderson, John Thomas; The ATLAS collaboration; Boterenbrood, Hendrik; Chen, Hucheng; Chen, Kai; Drake, Gary; Donszelmann, Mark; Francis, David; Gorini, Benedetto; Lanni, Francesco; Lehmann Miotto, Giovanna; Levinson, Lorne; Narevicius, Julia; Roich, Alexander; Ryu, Soo; Schreuder, Frans Philip; Schumacher, J\\"orn; Vandelli, Wainer; Vermeulen, Jos; Wu, Weihao; Zhang, Jinlong

    2015-01-01

    For new detector and trigger systems to be installed in the ATLAS experiment after LHC Run 2, a new approach will be followed for Front-End electronics interfacing. The FELIX (Front-End LInk eXchange) system will function as gateway connecting: on one side to detector and trigger electronics links, as well as providing timing and trigger (TTC) information; and on the other side a commodity switched network built using standard technology (either Ethernet or Infiniband). The new approach is described in this paper, and results achieved so far are presented.

  10. A new approach to front-­?end electronics interfacing in the ATLAS experiment

    E-Print Network [OSTI]

    Borga, Andrea; The ATLAS collaboration; Lanni, Francesco; Lehmann Miotto, Giovanna; Levinson, Lorne; Narevicius, Julia; Roich, Alexander; Schreuder, Frans Philip; Schumacher, J\\"orn; Vandelli, Wainer; Vermeulen, Jos; Ryu, Soo; Zhang, Jinlong; Anderson, John Thomas; Boterenbrood, Hendrik; Chen, Kai; Chen, Hucheng; Drake, Gary; Donszelmann, Mark; Francis, David

    2015-01-01

    For new detector and trigger systems to be installed in the ATLAS experiment after LHC Run 2 a new approach will be followed for front-end electronics interfacing. The FELIX (Front-End Link eXchange) system will interface to links connecting to front-end detector and trigger electronics instead of the RODs (ReadOut Drivers) currently used. FELIX will function as a gateway to a commodity switched network built using standard technology (either Ethernet or Infiniband). In the paper the new approach will be described and results of the demonstrator program currently in progress will be presented.

  11. The Phase-1 Upgrade of the ATLAS First Level Calorimeter Trigger

    E-Print Network [OSTI]

    Schwienhorst, Reinhard; The ATLAS collaboration

    2015-01-01

    The ATLAS level-1 calorimeter trigger pursues a series of upgrades in order to face the challenges posed by the upcoming increase of the LHC beam energy and luminosity. The hardware built during the Phase-1 upgrade will be installed in 2018. The calorimeter data will be available with a tenfold increase of granularity which allows to employ more sophisticated identification algorithms. To cope with this increase of input data, an entirely new custom electronics processing system will be built exploiting the technological advances in the design of complex PCBs, powerful FPGAs, new crate technologies and high speed optical interconnects.

  12. Saturn's inner satellites: Orbits, masses, and the chaotic motion of atlas from new Cassini imaging observations

    SciTech Connect (OSTI)

    Cooper, N. J.; Murray, C. D.; Renner, S.; Evans, M. W.

    2015-01-01

    We present numerically derived orbits and mass estimates for the inner Saturnian satellites, Atlas, Prometheus, Pandora, Janus, and Epimetheus from a fit to 2580 new Cassini Imaging Science Subsystem astrometric observations spanning 2004 February to 2013 August. The observations are provided as machine-readable and Virtual Observatory tables. We estimate GM{sub Atlas} = (0.384 ± 0.001) × 10{sup ?3} km{sup 3} s{sup ?2}, a value 13% smaller than the previously published estimate but with an order of magnitude reduction in the uncertainty. We also find GM{sub Prometheus} = (10.677 ± 0.006) × 10{sup ?3} km{sup 3} s{sup ?2}, GM{sub Pandora} = (9.133 ± 0.009) × 10{sup ?3} km{sup 3} s{sup ?2}, GM{sub Janus} = (126.51 ± 0.03) × 10{sup ?3} km{sup 3} s{sup ?2}, and GM{sub Epimetheus} = (35.110 ± 0.009) × 10{sup ?3} km{sup 3} s{sup ?2}, consistent with previously published values, but also with significant reductions in uncertainties. We show that Atlas is currently librating in both the 54:53 co-rotation-eccentricity resonance (CER) and the 54:53 inner Lindblad (ILR) resonance with Prometheus, making it the latest example of a coupled CER-ILR system, in common with the Saturnian satellites Anthe, Aegaeon, and Methone, and possibly Neptune's ring arcs. We further demonstrate that Atlas's orbit is chaotic, with a Lyapunov time of ?10 years, and show that its chaotic behavior is a direct consequence of the coupled resonant interaction with Prometheus, rather than being an indirect effect of the known chaotic interaction between Prometheus and Pandora. We provide an updated analysis of the second-order resonant perturbations involving Prometheus, Pandora, and Epimetheus based on the new observations, showing that these resonant arguments are librating only when Epimetheus is the innermost of the co-orbital pair, Janus and Epimetheus. We also find evidence that the known chaotic changes in the orbits of Prometheus and Pandora are not confined to times of apse anti-alignment.

  13. Search for the Higgs boson in the diphoton decay channel with the ATLAS detector

    E-Print Network [OSTI]

    Tackmann, K; The ATLAS collaboration

    2015-01-01

    A search for the Standard Model Higgs boson in the diphoton decay channel in proton-proton collisions using recent data collected with the ATLAS detector at the LHC, over the diphoton mass range 110-150 GeV is reported. Upper limits on the cross-section times branching ratio are derived. Additionaly, the results of the search for the fermiophobic Higgs boson are presented, based on the 4.9 fb-1 of data collected in 2011 at a centre-of-mass energy of 7 TeV.

  14. A Leakage Current-based Measurement of the Radiation Damage in the ATLAS Pixel Detector

    E-Print Network [OSTI]

    Igor V. Gorelov; for the ATLAS Collaboration

    2015-02-12

    A measurement has been made of the radiation damage incurred by the ATLAS Pixel Detector barrel silicon modules from the beginning of operations through the end of 2012. This translates to hadronic fluence received over the full period of operation at energies up to and including 8 TeV. The measurement is based on a per-module measurement of the silicon sensor leakage current. The results are presented as a function of integrated luminosity and compared to predictions by the Hamburg Model. This information can be used to predict limits on the lifetime of the Pixel Detector due to current, for various operating scenarios.

  15. Long-lived and compressed SUSY searches at CMS and ATLAS

    E-Print Network [OSTI]

    Barlow, Nick; The ATLAS collaboration

    2015-01-01

    Two challenging scenarios for SUSY searches at the LHC are when there are small mass differences between particles in the decay chain ("compressed" spectra) and where the SUSY particles have a non-negligible lifetime. The compressed case can be addressed by looking at events containing Initial State Radiation (ISR), while long-lifetimes can give rise to a wide range of possible detector signatures. This talk describes these diverse and interesting searches, performed by the ATLAS and CMS collaborations on the Run 1 LHC data.

  16. Performance of the ATLAS muon trigger in pp collisions at ?s = 8 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aad, G.

    2015-03-13

    The performance of the ATLAS muon trigger system is evaluated with proton–proton collision data collected in 2012 at the Large Hadron Collider at a centre-of-mass energy of 8 TeV. It is primarily evaluated using events containing a pair of muons from the decay of Z bosons. The efficiency of the single-muon trigger is measured for muons with transverse momentum 25 T more »top quarks. The muon trigger shows highly uniform and stable performance. Thus, the performance is compared to the prediction of a detailed simulation.« less

  17. Prototype Active Silicon Sensor in 150 nm HR-CMOS Technology for ATLAS Inner Detector Upgrade

    E-Print Network [OSTI]

    Rymaszewski, Piotr; Breugnon, Patrick; Godiot, Stépahnie; Gonella, Laura; Hemperek, Tomasz; Hirono, Toko; Hügging, Fabian; Krüger, Hans; Liu, Jian; Pangaud, Patrick; Peric, Ivan; Rozanov, Alexandre; Wang, Anqing; Wermes, Norbert

    2016-01-01

    The LHC Phase-II upgrade will lead to a significant increase in luminosity, which in turn will bring new challenges for the operation of inner tracking detectors. A possible solution is to use active silicon sensors, taking advantage of commercial CMOS technologies. Currently ATLAS R&D programme is qualifying a few commercial technologies in terms of suitability for this task. In this paper a prototype designed in one of them (LFoundry 150 nm process) will be discussed. The chip architecture will be described, including different pixel types incorporated into the design, followed by simulation and measurement results.

  18. Prototype Active Silicon Sensor in 150 nm HR-CMOS Technology for ATLAS Inner Detector Upgrade

    E-Print Network [OSTI]

    Piotr Rymaszewski; Marlon Barbero; Patrick Breugnon; Stépahnie Godiot; Laura Gonella; Tomasz Hemperek; Toko Hirono; Fabian Hügging; Hans Krüger; Jian Liu; Patrick Pangaud; Ivan Peric; Alexandre Rozanov; Anqing Wang; Norbert Wermes

    2016-01-04

    The LHC Phase-II upgrade will lead to a significant increase in luminosity, which in turn will bring new challenges for the operation of inner tracking detectors. A possible solution is to use active silicon sensors, taking advantage of commercial CMOS technologies. Currently ATLAS R&D programme is qualifying a few commercial technologies in terms of suitability for this task. In this paper a prototype designed in one of them (LFoundry 150 nm process) will be discussed. The chip architecture will be described, including different pixel types incorporated into the design, followed by simulation and measurement results.

  19. Performance of the ATLAS Calorimeters and Commissioning for LHC Run-2

    E-Print Network [OSTI]

    Rossetti, Valerio; The ATLAS collaboration

    2015-01-01

    The ATLAS general-purpose experiment at the Large Hadron Collider (LHC) is equipped with electromagnetic and hadronic liquid-argon (LAr) calorimeters and a hadronic scintillator-steel sampling calorimeter (TileCal) for measuring energy and direction of final state particles in the pseudorapidity range $|\\eta| energies of 7 and 8~TeV. Results on the calorimeter operation, monitoring and data quality, as well as their performance will be presented, including the calibration and stability of the electromagnetic scale, response uniformity and time resolution. These results demonstrate that the LAr and Tile calorimeters perform excellently within their design requirements. The calorimetry system thu...

  20. Jet energy and missing ET systematic uncertainties for early Run 2 data with the ATLAS detector

    E-Print Network [OSTI]

    Alkire, Steven Patrick; The ATLAS collaboration

    2015-01-01

    The jet energy scale and resolution and their systematic uncertainties are determined for jets measured with the ATLAS detector using proton-proton collision data with a centre-of-mass energy of \\sqrt{s}=13 TeV. Jets are clustered with the anti-kt algorithm with R=0.4 and calibrated using MC simulations. Uncertainties are based on measurements using 2012 data, measurements using early 2015 data and dedicated studies using MC simulations. In addition, systematic uncertainties on soft activity and its contributions to the missing transverse energy are determined using MC simulations and validated using early 2015 data.

  1. Measurement of the CP violating phase $\\Phi_s$ with CMS and ATLAS

    E-Print Network [OSTI]

    Ronchese, P

    2015-01-01

    The phase $\\Phi_s$ is the key parameter for the CP-violation of the $B^0_s$-$\\bar{B^0_s}$ system. An angular and proper decay time analysis is applied to the $B^0_s \\rightarrow J/\\psi \\Phi$ events. Using a data sample collected by the CMS and ATLAS experiments in LHC Run1, the $B^0_s$ signal candidates are reconstructed and are used to extract the phase $\\Phi_s$. We present the latest update on the results in this decay channel.

  2. Searches for exotic Higgs boson decays with the ATLAS and CMS experiments

    E-Print Network [OSTI]

    Lagouri, Theodota; The ATLAS collaboration

    2015-01-01

    The observed Higgs boson offers an excellent opportunity to look for new physics at LHC. Selected searches for exotic Higgs boson decays with the ATLAS and CMS experiments are presented. The Higgs boson decays to dark vector bosons (Zdark), the Lepton Flavor Violating (LFV) decays, the Flavor Changing Neutral Current (FCNC) decays, the decays to a light pseudo-scalar neutral Higgs boson (a in NMSSM) and the exotic Higgs decays to photon and missing transverse energy signatures are described and their Run-I results are given from both experiments. All the above searches for exotic Higgs boson decays present an alternative way for discovery of Beyond Standard Model (BSM) physics.

  3. Machine-inudced backgrounds: their origin and loads on ATLAS/CMS

    SciTech Connect (OSTI)

    Mokhov, N.V.; /Fermilab; Weiler, T.; /CERN

    2008-05-01

    A detailed analysis of machine-induced backgrounds (MIB) in the LHC collider detectors is performed with focus on origin and rates for three sources: tertiary beam halo, beam-gas interactions and kicker prefire. Particle fluxes originating from these operational and accidental beam losses are carefully calculated with the MARS15 code and presented at the entrance to the ATLAS and CMS experimental halls. It is shown that background rates in detector subsystems strongly depend on the origin of MIB, particle energy and type. Using this source term, instantaneous and integrated loads on the detectors and impact on the detector performance can be derived.

  4. World Bank eAtlas of Global Development | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to: navigation,Wood CountyGenerating-Entities |eAtlas of

  5. Direct Collapse Black Holes Can Launch Gamma-Ray Bursts and Get Fat to Supermassive Black Holes?

    E-Print Network [OSTI]

    Matsumoto, Tatsuya; Ioka, Kunihito; Heger, Alexander; Nakamura, Takashi

    2015-01-01

    The existence of black holes (BHs) of mass ~ 10^{9} M_sun at z > 6 is a big puzzle in astrophysics because even optimistic estimates of the accretion time are insufficient for stellar mass BHs of ~ 10 M_sun to grow into such supermassive BHs. A resolution of this puzzle might be the direct collapse of supermassive stars with mass M ~ 10^{5} M_sun into massive seed BHs. We find that if a jet is launched from the accretion disk around the central BH, the jet can break out the star because of the structure of the radiation pressure-dominated envelope. Such ultra-long gamma-ray bursts with duration of ~ 10^{4} - 10^{6} s and flux of 10^{-11} - 10^{-8} erg s^{-1} cm^{-2} could be detectable by Swift. We estimate an event rate of 10^{55} - 10^{56} erg. The resulting negative feedback delays the growth of the remnant BH by about 70 Myr or evacuates the host galaxy completely.

  6. Measurement of the W???? cross section in pp collisions at ?s = 7 TeV with the ATLAS experiment

    E-Print Network [OSTI]

    Taylor, Frank E.

    The cross section for the production of W bosons with subsequent decay W???? is measured with the ATLAS detector at the LHC. The analysis is based on a data sample that was recorded in 2010 at a proton–proton center-of-mass ...

  7. Search for the Standard Model Higgs boson in the two photon decay channel with the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search for the Standard Model Higgs boson in the two photon decay channel is reported, using 1.08 fb?11.08 fb[superscript ?1] of proton–proton collision data at a centre-of-mass energy of 7 TeV recorded by the ATLAS ...

  8. Search for a Standard Model Higgs Boson in the H?ZZ??+?-??? Decay Channel with the ATLAS Detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search for a heavy standard model Higgs boson decaying via H?ZZ??+?-??? , where ?=e, ?, is presented. It is based on proton-proton collision data at ?s=7??TeV, collected by the ATLAS experiment at the LHC in the first ...

  9. Search for Dilepton Resonances in pp Collisions at ?s=7??TeV with the ATLAS Detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at ?s=7??TeV at the Large Hadron Collider and correspond ...

  10. Use of ATLAS Visual and Thermal Imagery to Study the Urban Heat Island Effect in San Juan, Puerto Rico

    E-Print Network [OSTI]

    Gilbes, Fernando

    Use of ATLAS Visual and Thermal Imagery to Study the Urban Heat Island Effect in San Juan, Puerto as Urban Heat Islands (UHI). The main scientific objective of this research is to investigate the impact was used as the main sensor for this study with the objective of investigating the Urban Heat Island (UHI

  11. Solar energy potential atlas for planning energy system off-grid electrification in the Republic of Djibouti

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Solar energy potential atlas for planning energy system off-grid electrification in the Republic solar resource can therefore be an interesting mean to produce energy where it is consumed. The aimWh/m². Furthermore, the solar radiation reaching Djibouti corresponded to 20 000 times the total yearly energy

  12. Non-negative partial least squares for meta-analytic parcellation: A functional atlas for the human brain

    E-Print Network [OSTI]

    Nielsen, Finn Årup

    - analytic method that relies on a combination of text mining, functional volumes modeling, partial least found allows us to con- struct a functional atlas where voxels and words get loaded on components such as mem- ory, emotion, pain and audition. Furthermore, we present a cluster validation procedure based

  13. Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel

    E-Print Network [OSTI]

    Taylor, Frank E.

    A measurement of the production cross-section for top quark pairs (t[bar over t]) in pp collisions at ?s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected ...

  14. Search for FCNC single top-quark production at ?s = 7 TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A search for the production of single top-quarks via flavour-changing neutral-currents is presented. Data collected with the ATLAS detector at a centre-of-mass energy of ?s = 7 TeV, corresponding to an integrated luminosity ...

  15. Studio di un algoritmo lineare di ricostruzione analogica della posizione per il rivelatore a pixel di ATLAS

    E-Print Network [OSTI]

    Arelli-Maffioli, A; Troncon, C; Lari, T

    2007-01-01

    A detailed study of spatial resolution of Atlas pixel sensors prototypes was performed. Charge interpolation was used and allowed for a significant improvement with respect to digital resolution. A simplified algorithm for charge interpolation was developed. Its application to both unirradiated and irradiated sensors is presented and discussed.

  16. Identifying fake leptons in ATLAS while hunting SUSY in 8 TeV proton-proton collisions

    E-Print Network [OSTI]

    Gillam, Thomas P. S.

    2015-04-28

    chamber, and is the outermost com- ponent of the inner detector. Each “straw” is a 4 mm diameter polyimide tube, coated The ATLAS experiment and the LHC 9 internally with aluminium to form a cathode, and enclosing a tungsten wire. Each straw is sealed...

  17. Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    An updated search is performed for gluino, top squark, or bottom squark R-hadrons that have come to rest within the ATLAS calorimeter, and decay at some later time to hadronic jets and a neutralino, using 5.0 and ...

  18. AUTOMATED 3D MAPPING & SHAPE ANALYSIS OF THE LATERAL VENTRICLES VIA FLUID REGISTRATION OF MULTIPLE SURFACE-BASED ATLASES

    E-Print Network [OSTI]

    Thompson, Paul

    SURFACE-BASED ATLASES Yi-Yu Chou1 , Natasha Leporé1 , Greig I. de Zubicaray2 , Stephen E. Rose2 , Owen T. Carmichael3 , James T. Becker4 , Arthur W. Toga1 , Paul M. Thompson1 1 Laboratory of Neuro Imaging, UCLA Dept

  19. Light-quark and gluon jet discrimination in pp collisions at ?s = 7 TeV with the ATLAS detector

    E-Print Network [OSTI]

    Taylor, Frank E.

    A likelihood-based discriminant for the identification of quark- and gluon-initiated jets is built and validated using 4.7 fb ?1 of proton–proton collision data at s?=7 TeV collected with the ATLAS detector at the LHC. ...

  20. Dark Matter Benchmark Models for Early LHC Run-2 Searches. Report of the ATLAS/CMS Dark Matter Forum

    SciTech Connect (OSTI)

    Abercrombie, Daniel

    2015-07-06

    One of the guiding principles of this report is to channel the efforts of the ATLAS and CMS collaborations towards a minimal basis of dark matter models that should influence the design of the early Run-2 searches. At the same time, a thorough survey of realistic collider signals of Dark Matter is a crucial input to the overall design of the search program.