CERN Accelerating science

CERN Document Server 493 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 1.31 sekúnd. 
1.
PyHEP.dev 2024 Workshop Summary Report, August 26-30 2024, Aachen, Germany / Alshehri, Azzah (Ain Shames U.) ; Bürger, Jan (KISTI, Daejeon) ; Chopra, Saransh (University Coll. London) ; Eich, Niclas (RWTH Aachen U.) ; Eppelt, Jonas (KIT, Karlsruhe, TTP) ; Erdmann, Martin (RWTH Aachen U.) ; Eschle, Jonas (Syracuse U.) ; Fackeldey, Peter (KISTI, Daejeon ; RWTH Aachen U.) ; Farkas, Maté (RWTH Aachen U.) ; Feickert, Matthew (Wisconsin U., Madison) et al.
The second PyHEP.dev workshop, part of the "Python in HEP Developers" series organized by the HEP Software Foundation (HSF), took place in Aachen, Germany, from August 26 to 30, 2024. [...]
arXiv:2410.02112.
- 16.
Fulltext
2.
Properties of Cosmic Deuterons Measured by the Alpha Magnetic Spectrometer / AMS Collaboration
Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of the deuteron (D) flux are presented. The measurements are based on 21×106 D nuclei in the rigidity range from 1.9 to 21 GV collected from May 2011 to April 2021. [...]
2024 - 8 p. - Published in : Phys. Rev. Lett. 132 (2024) 261001 Fulltext: PDF;
3.
Upgrade of the mechanically pumped CO$_2$  two-phase cooling system for the alpha magnetic spectrometer on the international space station / Ambrosi, G (INFN, Perugia ; Perugia U.) ; Bertucci, B (INFN, Perugia ; Perugia U.) ; Bollweg, K (NASA, Houston) ; Burger, J (MIT) ; Cai, X (MIT) ; Capell, M (MIT) ; Chung, C H (Aachen, Tech. Hochsch.) ; Chuang, Y R (Northrop-Grumman) ; Clark, C (NASA, Houston) ; Ding, T (Beijing, Inst. Tech.) et al.
This study describes the successful upgrade of a mechanically pumped CO$_2$ two-phase cooling system in space by designing a new pump module for the Alpha Magnetic Spectrometer-02 on the International Space Station. Key factors for mission success are emphasized, including achieving high coolant filling accuracy within 10% of the target and maintaining system stability within ±1 C. [...]
2023 - Published in : Appl. Thermal Eng. 230 (2023) 120738
4.
First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV / AMS Collaboration
A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8×106 positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to ∼250  GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. [...]
2013 - 10 p. - Published in : Phys. Rev. Lett. 110 (2013) 141102 External links: Interactions.org article; Symmetry Magazine article; Press Release
5.
Temporal Structures in Positron Spectra and Charge-Sign Effects in Galactic Cosmic Rays / AMS Collaboration
We present the precision measurements of 11 years of daily cosmic positron fluxes in the rigidity range from 1.00 to 41.9 GV based on 3.4×106 positrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The positron fluxes show distinctly different time variations from the electron fluxes at short and long timescales. [...]
2023 - 10 p. - Published in : Phys. Rev. Lett. 131 (2023) 151002 Fulltext: PDF;
6.
Measurement of the relative total hadronic cross section R at petra / Barber, D ; Becker, U ; Bohem, A ; Branson, J ; Bron, J ; Buikman, D ; Burger, J ; Chang, C C ; Chen, M ; Cheng, C P et al.
0000. - 13 p.
7.
Properties of Cosmic-Ray Sulfur and Determination of the Composition of Primary Cosmic-Ray Carbon, Neon, Magnesium, and Sulfur: Ten-Year Results from the Alpha Magnetic Spectrometer / AMS Collaboration
We report the properties of primary cosmic-ray sulfur (S) in the rigidity range 2.15 GV to 3.0 TV based on 0.38×106 sulfur nuclei collected by the Alpha Magnetic Spectrometer experiment (AMS). We observed that above 90 GV the rigidity dependence of the S flux is identical to the rigidity dependence of Ne-Mg-Si fluxes, which is different from the rigidity dependence of the He-C-O-Fe fluxes. [...]
2023 - 9 p. - Published in : Phys. Rev. Lett. 130 (2023) 211002 Fulltext: PDF;
8.
Design and Modeling of AMaSED-2: A High Temperature Superconducting Demonstrator Coil for the Space Spectrometer ARCOS / Dam, Magnus (INFN, Milan) ; Burger, William Jerome (Enrico Fermi Ctr., Rome ; TIFPA-INFN, Trento) ; Carpentiero, Rita (ASI, Rome) ; Chesta, Enrico (CERN) ; Iuppa, Roberto (TIFPA-INFN, Trento) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (INFN, Milan ; Milan U.)
Magnetic spectrometers detect the rigidity of charged particles by measuring the bending of their trajectories as they pass through a magnetic field. ARCOS is a proposal for a next generation magnetic spectrometer in space with a bending strength of 3 T $\,$ m at an operating temperature of 20 K. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4500105
In : 15th European Conference on Applied Superconductivity (EUCAS 2021), Online, 5 - 9 Sep 2021, pp.4500105
9.
Temporal Structures in Electron Spectra and Charge Sign Effects in Galactic Cosmic Rays / AMS Collaboration
We present the precision measurements of 11 years of daily cosmic electron fluxes in the rigidity interval from 1.00 to 41.9 GV based on 2.0×108 electrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The electron fluxes exhibit variations on multiple timescales. [...]
2023 - 11 p. - Published in : Phys. Rev. Lett. 130 (2023) 161001 Fulltext: PDF;
10.
Manufacturing and testing of AMaSED-2: a no-insulation high-temperature superconducting demonstrator coil for the space spectrometer ARCOS / Dam, Magnus (LASA, Segrate) ; Burger, William Jerome (TIFPA-INFN, Trento) ; Carpentiero, Rita (ASI, Rome ; ICRA, Rio de Janeiro) ; Chesta, Enrico (CERN) ; Iuppa, Roberto (TIFPA-INFN, Trento ; Trento U.) ; Kirby, Glyn (CERN) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (LASA, Segrate ; INFN, Milan ; Milan U.)
The Astroparticle Research Compact Orbital Spectrometer (ARCOS) magnet is a 12-coil toroidal magnet for a proposed next-generation magnetic spectrometer in space. AMaSED-2 is a small-scale non-flight demonstrator coil for the ARCOS magnet. [...]
2023 - 8 p. - Published in : Supercond. Sci. Technol. 36 (2023) 014007

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