25,974 research outputs found
The AMS Experiment
No full textPhoto 1. The AMS tracker in the clean room with its silicon sensors and electronic modules. Photo 2. The AMS superconducting magnet that will surround the tracker
Astronauts training for servicing the AMS detector in Aachen
No full textAstronaut Luca Parmitano (Italy-ESA), Andrew R. Morgan (US-NASA), Christopher J. Cassidy (US-NASA), and Jeremy R. Hansen (Canada-ASC) getting to grips with the cooling system technology of the Alpha Magnetic Specrometre (AMS) at the Institue of Physics (IA) at RWTH, Aachen University. The atsronauts will service the AMS detector on the International Space Station (ISS) during a series of dedicated EVAs (Extra VEhicular Activities) planned in November-December 2019
Recommended from our members
Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01
No full textPhys.Lett.B646:145-154,2007 A measurement of the cosmic ray positron fraction e+/(e+ + e-) in the energy
range of 1-30 GeV is presented. The measurement is based on data taken by the
AMS-01 experiment during its 10 day Space Shuttle flight in June 1998. A proton
background suppression on the order of 10^6 is reached by identifying converted
bremsstrahlung photons emitted from positrons
Cosmic-ray research with AMS-02 on the International Space Station
No full textHenning Gast gave a talk on new results of the AMS-02 detector onboard the ISS. Three weeks after the Patras Workshop in Mainz, updated AMS results were presented at the33rd International Cosmic Ray Conference (ICRC) and are described in the corresponding proceedings in detail.For convenience of the Patras participants, the editors collected the following links to the respective AMS publications in addition to the slides that are available on the conferencewebsite
AMS Standing Committee on New Skills 2013: Follow-up-workshops 2013
No full textIn October 2009, the Administrative Board of Public Employment Service Austria (AMS) set up an AMS Standing Committee on New Skills. Since that time, the Committee has continually initiated projects that aim to identify changes in needs for qualifications in collaboration with experts from companies. Based on these projects, the Committee develops continuing education and training (CET) programmes to make it easier for jobseekers to re-enter the world of work. These CET programmes are based on cluster-specific catalogues of modules that, since the autumn 2011, have become part of the AMS course plan and have since undergone further development and optimisation to ensure a continuous improvement of the target group-appropriate course design. This report aims to summarise the results of a follow-up phase in 2013, during which one workshop each was organised for the following eight company clusters (in alphabetical order): construction and building ecology; office and administration; chemistry and plastics; electrical engineering, electronics, telecommunications; energy and environmental engineering; commerce; machinery, motor vehicles, metal; tourism and wellness.Im Oktober 2009 wurde vom Verwaltungsrat des Arbeitsmarktservice Österreich (AMS) ein "AMS Standing Committee on New Skills" eingerichtet, das seither kontinuierlich Projekte initiiert, um gemeinsam mit ExpertInnen aus Unternehmen Veränderungen im Qualifikationsbedarf zu analysieren. Darauf aufbauend werden seitens des AMS Weiterbildungsangebote entwickelt (New-Skills-Kurse), die Arbeitsuchenden den Wiedereinstieg in die Beschäftigung erleichtern sollen. Grundlage für diese Weiterbildungen bilden clusterspezifische Modulkataloge, die seit Herbst 2011 Eingang in die Kursplanung des AMS finden und seither weiterentwickelt und optimiert werden, um die zielgruppenadäquate Gestaltung der Kursangebote laufend zu verbessern. Der vorliegende Bericht (= AMS report 105), der im Auftrag der Abt. Arbeitsmarktforschung und Berufsinformation des AMS Österreich vom Institut für Bildungsforschung der Wirtschaft (ibw) erstellt wurde, fasst die Ergebnisse einer Follow-up-Phase im Jahr 2013 zusammen, in der zu folgenden acht Unternehmensclustern je ein Workshop durchgeführt wurde: Bau und Bauökologie; Büro und Verwaltung; Chemie und Kunststoff; Elektrotechnik, Elektronik und Telekommunikation; Energie und Umwelttechnik; Handel; Maschinen, Kfz, Metall; Tourismus und Wellness
Charge determination of nuclei with the AMS-02 silicon tracker
No full textThe silicon tracker of the AMS-02 detector measures the trajectory in three dimensions of electrons, protons and nuclei to high precision in a dipole magnetic field and thus measures their rigidity (momentum over charge) and the sign of their charge. In addition, it measures the specific energy loss of charged particles to determine the charge magnitude. Ladders from the AMS-02 tracker have been exposed to ion beams at CERN and GSI to study their response to nuclei from helium up to the iron group. The longest ladder, View the MathML source72×496mm2, verified in the tests contains 12 sensors. Good charge resolution is observed up to iro
AMS Standing Committee on New Skills 2013: Bericht über die Ergebnisse der Follow-up-Workshops 2013
No full textIm Oktober 2009 wurde vom Verwaltungsrat des Arbeitsmarktservice Österreich (AMS) ein "AMS Standing Committee on New Skills" eingerichtet, das seither kontinuierlich Projekte initiiert, um gemeinsam mit ExpertInnen aus Unternehmen Veränderungen im Qualifikationsbedarf zu analysieren. Darauf aufbauend werden seitens des AMS Weiterbildungsangebote entwickelt (New-Skills-Kurse), die Arbeitsuchenden den Wiedereinstieg in die Beschäftigung erleichtern sollen. Grundlage für diese Weiterbildungen bilden clusterspezifische Modulkataloge, die seit Herbst 2011 Eingang in die Kursplanung des AMS finden und seither weiterentwickelt und optimiert werden, um die zielgruppenadäquate Gestaltung der Kursangebote laufend zu verbessern. Der vorliegende Bericht (= AMS report 105), der im Auftrag der Abt. Arbeitsmarktforschung und Berufsinformation des AMS Österreich vom Institut für Bildungsforschung der Wirtschaft (ibw) erstellt wurde, fasst die Ergebnisse einer Follow-up-Phase im Jahr 2013 zusammen, in der zu folgenden acht Unternehmensclustern je ein Workshop durchgeführt wurde: Bau und Bauökologie; Büro und Verwaltung; Chemie und Kunststoff; Elektrotechnik, Elektronik und Telekommunikation; Energie und Umwelttechnik; Handel; Maschinen, Kfz, Metall; Tourismus und Wellness.In October 2009, the Administrative Board of Public Employment Service Austria (AMS) set up an AMS Standing Committee on New Skills. Since that time, the Committee has continually initiated projects that aim to identify changes in needs for qualifications in collaboration with experts from companies. Based on these projects, the Committee develops continuing education and training (CET) programmes to make it easier for jobseekers to re-enter the world of work. These CET programmes are based on cluster-specific catalogues of modules that, since the autumn 2011, have become part of the AMS course plan and have since undergone further development and optimisation to ensure a continuous improvement of the target group-appropriate course design. This report aims to summarise the results of a follow-up phase in 2013, during which one workshop each was organised for the following eight company clusters (in alphabetical order): construction and building ecology; office and administration; chemistry and plastics; electrical engineering, electronics, telecommunications; energy and environmental engineering; commerce; machinery, motor vehicles, metal; tourism and wellness
The Alpha Magnetic Spectrometer (AMS) on the international space station: Part II — Results from the first seven years
No full text© 2020 The Authors The Alpha Magnetic Spectrometer (AMS) is a precision particle physics detector on the International Space Station (ISS) conducting a unique, long-duration mission of fundamental physics research in space. The physics objectives include the precise studies of the origin of dark matter, antimatter, and cosmic rays as well as the exploration of new phenomena. Following a 16-year period of construction and testing, and a precursor flight on the Space Shuttle, AMS was installed on the ISS on May 19, 2011. In this report we present results based on 120 billion charged cosmic ray events up to multi-TeV energies. This includes the fluxes of positrons, electrons, antiprotons, protons, and nuclei. These results provide unexpected information, which cannot be explained by the current theoretical models. The accuracy and characteristics of the data, simultaneously from many different types of cosmic rays, provide unique input to the understanding of origins, acceleration, and propagation of cosmic rays
The Structure of Scientific Collaboration Networks in Scientometrics
No full textThe structure of scientific collaboration networks in scientometrics was investigated at the level of individuals by using bibliographic data of all papers published in the international journal Scientometrics retrieved from the Science Citation Index (SCI) during 1978 to 2004. Combined analysis of social network analysis (SNA), co-occurrence analysis, cluster analysis and frequency analysis of words was explored to reveal: (1) The microstructure of the collaboration network on scientists’ aspects of scientometrics; (2) The major collaborative fields of the collaborative sub-networks; (3) The collaborative center of the collaboration network in scientometrics
Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01
No full textA measurement of the cosmic ray positron fraction e+/(e++e−)e+/(e++e−) in the energy range of 1–30 GeV is presented. The measurement is based on data taken by the AMS-01 experiment during its 10 day Space Shuttle flight in June 1998. A proton background suppression on the order of 106 is reached by identifying converted bremsstrahlung photons emitted from positrons
- …
