43 research outputs found
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Fermilab Steering Group Report
No full textThe Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOvA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It o.ers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments a.ecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide
Recommended from our members
Fermilab Steering Group Report
No full textThe Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It offers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments affecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide
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Project X and a muon facility at Fermilab
No full textAn integrated program is described, starting with muon experiments in the Booster era, continuing with a 2 MW target station, a 4 GeV Neutrino Factory and a 3 TeV Muon Collider, all driven by Project X. This idea provides an integrated approach to the Intensity and Energy Frontiers at Fermilab. Project X is a proposed high intensity proton facility intended to support a world-leading program in neutrino and flavor physics over the next two decades at Fermilab while also providing an upgrade path to drive a neutrino factory and/or a muon collider. Project X is an integral part of the Fermilab Roadmap as described in the Fermilab Steering Group Report of August 2007 and of the Intensity Frontier science program described in the P5 report of May 2008. The primary elements of that research program to be supported by Project X include: (1) A neutrino beam for long baseline neutrino oscillation experiments. A new 2 megawatt proton source with proton energies between 50 and 120 GeV would produce intense neutrino beams, directed toward a large detector located in a distant underground laboratory. (2) Kaon and muon based precision experiments running simultaneously with the neutrino program. These could include a world leading muon-to-electron conversion experiment and world leading rare kaon decay experiments. (3) A path toward a muon source for a possible future neutrino factory and, potentially, a muon collider at the Energy Frontier. This path requires that the new proton source have significant upgrade potential beyond the initial uses. This paper suggests that an implementation of Project X based on a CW linac can be part of a continuous synergistic transition from a muon physics program in the 'Booster era' to the Neutrino Factory and Muon Collider. It then describes a possible staging of the planned muon experiments and of Project X to provide a graceful transition from the Intensity Frontier to the Energy Frontier
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The ZOOM Fermilab physics class libraries
No full textSeveral years ago, the two major collider experiments at Fermilab (D#31; and CDF) decided that new software development for Run II will be largely done in C++. The run is slated to start in 1.5 years, an aggressive time frame for a major change in development language and style. If despite the transition each experiment (and sometimes multiple groups within an experiment) were to develop each needed mod- ule, the C++ strategy would not be advantageous. Thus it was deemed useful to have a library development group speci#12;cally responsive to Run II needs. This Fer- milab Physics Class Library Task Force (ZOOM) would also expand the core of C++ expertise available for Fermilab physicists to draw upon. C++ di#11;ers from Fortran in that the for common use of routines and libraries is greater. But this potential is not realized automatically. Unless coordina- tion issues are considered from the start, utilities produced by one group generally do mot meet the needs of other groups|and each group ends up creating independant software. To help increase code sharing, the centralized ZOOM task force must: Actively pursue outside (commercial and free-ware) packages. If ZOOM can verify that package X meets some needs in a sensible manner, then people can gravitate to that and not expend valuable development time. Act as a core for joint develpment of packages needed by both experiments. Develop relevant packages of su#14;ciently high quality as to overcome the natu- ral reluctance of highly skilled physicists to rely on code developed by others. This means more extensive design thought and testing work than might be practical for some groups. Participate in cooperation with HEP groups outside the FNAL community, to acquire tools suitable for the Fermilab e#11;orts. Of particular concern are areas where standardization is important, and thus a single product is more valuable than two, even discounting any savings in e#11;ort. We must bring the ability to contribute some packages and the willingness to accept others from the HEP community. ZOOM is answerable to the Run II Steering Committee, representing CDF, D#31;, and the Computing Division. As implied above, the mission is to acquire, adapt, or (if necessary) develop modules that will be of use to both experiments. The products are organized into \packages" each of which contain|for a given platform|a library for linking with user code, and its sources (if not commercial) and build scripts. Multiple versions of the library may be present: for example, builds can be done with or without C++ exception handling enabled. The ZOOM software, including sources and documentation, can be found on links from the homepage www.fnal.gov/docs/working-groups/fpcltf/fpcltf.html. In addition, directory trees containing source and binary libraries are kept on the D#31;, CDF, and central Computing Division systems, so Run II users and others can link to the built libraries. ZOOM documentation is mostly html-based
INSPIRE: contributions to Invenio from the leading High Energy Physics (HEP) platform
No full textPresentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014Invenio Interest Group PresentationsINSPIRE (http://inspirehep.net/) is an information system for the global High Energy Physics (HEP) community, supported by a collaboration between four major particle physics labs: CERN, DESY, Fermilab and SLAC. INSPIRE is used regularly by around 50,000 HEP scientists worldwide in order to search for publications, references, authors, institutions etc. The system currently holds over 1 million bibliographic records.
Since the launch of the INSPIRE website in 2008, the project has contributed several functionalities back to Invenio and these will be the focus of this Interest Group presentation.
The first of these is an author disambiguation module that allows INSPIRE to offer its users automatically generated profile pages that aggregate all the research output from one individual. Other components include an automatic reference extractor from PDF that allows INSPIRE to keep citation counts accurate and all the back-office tools that catalogers use to maintain the high-quality metadata that characterizes INSPIRE.
Focus will be also given to ongoing developments including migration of INSPIRE to the upcoming version of Invenio, new modules under development, and porting to new technologies such as Flask and Bootstrap.Martin Montull, Javier (CERN, Switzerland
Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations
No full textThis paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and alters the fiber transmission capability so that the detection simply requires a LED and a photodiode. The coated POF is obtained by means of low-pressure plasma-enhanced chemical vapor deposition that allows the glass-like film to be deposited at low temperature without damaging the fiber core. The developed sensor will be installed in the recirculation gas system of the resistive plate chamber muon detector of the Compact Muon Solenoid experiment at the Large Hadron Collider accelerator of the European Organization for Nuclear Research (CERN
The Global Network Advancement Group A Next Generation System for the LHC Program and Data Intensive Sciences
No full textThis paper presents the rapid progress, vision and outlook across multiple state of the art development lines within the Global Network Advancement Group (GNA-G) and its Data Intensive Sciences and SENSE/AutoGOLE working groups, which are designed to meet the present and future needs and address the challenges of the Large Hadron Collider and other science programs with global reach. Since it was founded in the Fall of 2019 and the working groups were formed in 2020, in partnership with ESnet, Internet2, CENIC, GEANT, ANA, RNP, StarLight, NRP, N-DISE, AmLight, and many other leading research and education networks and network R&D projects, as well as Caltech, UCSD/SDSC, Fermilab, CERN, LBL, and many other leading universities and laboratories, the GNA-G working groups have deployed two virtual circuit and programmable testbeds spanning six continents which supports continuous developments aimed at the next generation of programmable networks interworking with the science programs’ computing and data management systems. The talk covers examples of recent progress in developing and deploying new methods and approaches in multidomain virtual circuits, flow steering, path selection, load balancing and congestion avoidance, segment routing and machine learning based traffic prediction and optimization
High field accelerator magnet R&D in Europe
No full textThe LHC magnet R&D program has shown that the limit of NbTi technology at 1.9 K was in the 10-to-10.5-T range. Hence, to go beyond the 10-T threshold, it is necessary to change the superconducting material. Given the state of the art in HTS, the only serious candidate is NbSn. A series of dipole magnet models built at Twente University and LBNL as well as a vigorous program carried out at Fermilab have demonstrated the feasibility of NbSn magnet technology. The next step is to bring this technology to maturity, which require further conductor and conductor insulation development and a simplification of manufacturing processes. After a brief history, we review ongoing R&D programs in Europe and we present the Next European Dipole (NED) initiative promoted by the European Steering Group on Accelerator R&D (ESGARD)
