1,721,038 research outputs found
Source code of MAUS - the MICE Analysis User Software
No full textMICE, the international Muon Ionization Cooling Experiment, is a project to design, construct, operate and test a cell of a muon ionisation cooling channel that may be used for a future Muon Collider or Neutrino Factory.The object of the MICE experiment is to take a beam of muons created from protons from the ISIS accelerator hitting a titanium target and to show that it is possible to create a narrow intense beam, using detector techniques from particle physics.MAUS is the software framework used by the MICE collaboration to provide Monte Carlo simulation of the beam and detector responses (via GEANT4), both offline and online data reconstruction, and various data analysis tools. It also provides a framework for collaborators to build their own offline data-analysis tools. MAUS is described in: R. Asfandiyarov et al.: “MAUS: the MICE Analysis User Software” Journal of Instrumentation 14 (4) T04005 (2019).The source code of MAUS is available from the Launchpad repository:https://launchpad.net/mausAll required third-party libraries are included with the source code. Guidance on compilation and use is provided at http://micewww.pp.rl.ac.uk/projects/maus/wikiMaterial available from MICE includes:The MICE RAW data: doi:10.17633/rd.brunel.3179644The MICE RECO data: doi:10.17633/rd.brunel.5955850The MICE Simulation data: doi:10.17633/rd.brunel.5972329The MAUS Software: doi:10.17633/rd.brunel.8337542The MICE Miscellaneous data: doi:10.17633/rd.brunel.5024885</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The MICE Experiment
No full textIonization Cooling is the only practical solution to preparing high brilliance muon beams for a neutrino factory or muon collider. The muon ionization cooling experiment (MICE) is under development at the Rutherford Appleton Laboratory (UK) by an international collaboration. The muon beam line has been commissioned and first measurements of emittance with particle physics detectors have been performed. The remaining apparatus is currently under construction. First results with a liquid-hydroge n absorber will be produced in 2013; a couple of years later a full cell of a representative ionization cooling channel, including RF re-acceleration, will be in operation. The design offers opportunities for tests with various absorbers and several optic s configurations. Results will be compared with detailed simulations of cooling channel performance to ensure full understanding of the cooling process
MICE: the Muon Ionization Cooling Experiment: Step I: First Measurement of Emittance with Particle Physics Detectors
No full textThe Muon Ionization Cooling Experiment (MICE) is a strategic R&D project intended to demonstrate the only practical solution to providing high brilliance beams necessary for a neutrino factory or muon collider. MICE is under development at the Rutherford Appleton Laboratory (RAL) in the United Kingdom. It comprises a dedicated beamline to generate a range of input muon emittances and momenta, with time-of-flight and Cherenkov detectors to ensure a pure muon beam. The emittance of the incoming beam will be measured in the upstream magnetic spectrometer with a scintillating fiber tracker. A cooling cell will then follow, alternating energy loss in Liquid Hydrogen (LH2) absorbers to RF cavity acceleration. A second spectrometer, identical to the first, and a second muon identification system will measure the outgoing emittance. In the 2010 run at RAL the muon beamline and most detectors were fully commissioned and a first measurement of the emittance of the muon beam with particle physics (time-of-flight) detectors was performed. The analysis of these data was recently completed and is discussed in this paper. Future steps for MICE, where beam emittance and emittance reduction (cooling) are to be measured with greater accuracy, are also presented.
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
MICE Raw Data
No full textMICE, the international Muon Ionization Cooling Experiment, is a project to design, construct, operate and test a cell of a muon ionisation cooling channel that may be used for a future Muon Collider or Neutrino Factory.The object of the MICE experiment is to take a beam of muons created from protons from the ISIS accelerator hitting a titanium target and to show that it is possible to create a narrow intense beam, using detector techniques from particle physics.The RAW data is the binary output from the principal MICE DAQ system, and will need unpacking and reconstructing with the appropriate software and geometry information. For many runs, the outputs of the real-time monitoring are included in the tarball. Tarballs of the RAW data output from MICE are available from:http://gfe02.grid.hep.ph.ic.ac.uk:8301/MICE/The layout of the MICE data hierarchy is described in MICE Note 255 and the data and re-use policy is described in MICE Note 396:http://www.mice.iit.edu/cgi-bin/note1LinePrintArchival copies of all MICE data are stored on tape at the GridPP Tier 1 at the Rutherford-Appleton Laboratory, Chilton, UK. Contact the MICE Data Manager: [email protected] available from MICE includes:The MICE RAW data: doi:10.17633/rd.brunel.3179644The MICE RECO data: doi:10.17633/rd.brunel.5955850The MICE Simulation data: doi:10.17633/rd.brunel.5972329The MAUS Software: doi:10.17633/rd.brunel.8337542The MICE Miscellaneous data: doi:10.17633/rd.brunel.5024885</p
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