Results 1 to 10 of about 345,959 (285)
Galaxies, 2017 We study the spin current tensor of a Dirac particle at accelerations close to the upper limit introduced by Caianiello. Continual interchange between particle spin and angular momentum is possible only when the acceleration is time-dependent.
Giorgio Papini
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Energetic spectra from semi-implicit particle-in-cell simulations of magnetic reconnection [PDF]
Scientific ReportsAstrophysical observations suggest that magnetic reconnection in relativistic plasmas plays an important role in the acceleration of energetic particles. Modeling this accurately requires numerical schemes capable of addressing large scales and realistic
K. M. Schoeffler +4 more
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The cryogenic control system of BEPCII
EPJ Techniques and Instrumentation, 2021 The BEPCII project is for upgrading the Beijing Electron Positron Collider to reach a higher luminosity. The cryogenic system has been firstly designed and deployed in BEPCII, which provides cooling capacity for SRF cavities, SCQ and SSM.
Gang Li +8 more
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IEEE Access, 2022 To fabricate 10–16 Tesla high-field accelerator magnets, the high-Jc Nb3Sn superconductor is one of the most practical choices. However, it is a brittle material and is strain-sensitive.
Zhen Zhang, Qingjin Xu
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Performance study of a new epoxy resin IR-3 in HTS-based high-field magnet application
Materials Research Express, 2022 REBCO (Rare-earth-based barium copper oxide) conductors are appropriate materials for high-field magnet applications. Vacuum impregnation using epoxy resin is a technique widely used for stable operation of superconducting coils.
Huanli Yao +13 more
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Machine learning enabled fast evaluation of dynamic aperture for storage ring accelerators
New Journal of Physics, 2022 For any storage ring-based large-scale scientific facility, one of the most important performance parameters is the dynamic aperture (DA), which measures the motion stability of charged particles in a global manner.
Jinyu Wan, Yi Jiao
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Acceleration of Charged Particles in Astrophysical Plasmas
Frontiers in Astronomy and Space Sciences, 2021 The origin of high-energy particles in the Universe is one of the key issues of high-energy solar physics, space science, astrophysics, and particle astrophysics.
Siming Liu, Siming Liu, J. Randy Jokipii
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Relativistic self focusing and frequency shift of super-Gaussian laser beam in plasma
Results in Physics, 2020 Relativistic self focusing and frequency shift of laser beam having super-Gaussian profile in space and Gaussian profile in time is studied in a plasma. The relativistic mass nonlinearity is found to cause time dependent self focusing of the laser pulse ...
Hitendra K. Malik, Lalita Devi
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Discussion on Rayleigh equation obtained for a Hall thruster plasma with dust
Journal of Theoretical and Applied Physics, 2018 The present study focuses on the Rayleigh equation derived in the case of a Hall thruster plasma having dust contamination, produced near the exit of the channel due to the finite divergence of the accelerated ions and the sputtering of the walls. In the
Jasvendra Tyagi +2 more
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Resonant third harmonic generation of super-Gaussian laser beam in a rippled density plasma
Journal of Theoretical and Applied Physics, 2018 Resonant third harmonic generation of super-Gaussian laser beam in rippled density plasma is studied. Both the relativistic and ponderomotive nonlinearities are included in the analysis, and the study is done for self-guided laser beam.
Lalita Devi, Hitendra K. Malik
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