Results 1 to 10 of about 97,376 (264)
The Astrophysical Journal Letters, 2023 The very long-term evolution of the hierarchical restricted three-body problem with a slightly aligned precessing quadrupole potential is studied analytically.
Ygal Y. Klein, Boaz Katz
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Discussion on Design Ideas of Quadrupole Field of Mass Spectrometry [PDF]
Zhipu Xuebao, 2023 The mass analyzer based on quadrupole field theory, including quadrupole and ion trap, control and screen ions by a non-magnetic, alternating electric field, which was the first proposed by Professor Paul in 1953.
JIA Bin;YANG Mao-lin;LIU Ji-xing;ZHAO Gao-sheng;HUANG Yu-liang;CHENG Ping
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Quasithermalization of collisionless particles in quadrupole potentials [PDF]
Physical Review A, 2020 We analyze several puzzling features of a recent experiment with a noninteracting gas of atoms in a quadrupole trap. After an initial momentum kick, the system reaches a stationary, quasi-thermal state even without collisions, due to the dephasing of individual particle trajectories.
Johnathan Lau +6 more
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Effects of electric quadrupole interactions with tunable atomic mirrors
Alexandria Engineering Journal, 2023 Recent studies have involved electric quadrupole effects in atoms interacting with the evanescent mode. This type of surface mode is usually produced by the total internal reflection in a dielectric-vacuum atz=0, and its intensity distribution is very ...
S. Al-Awfi
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Enhancement of specular behavior in atom mirrors with quadrupole-active transitions
Alexandria Engineering Journal, 2023 Modern studies have confirmed the possibility of making atomic mirrors using quadrupole-active atomic transition evanescent waves. The reflection process has been shown to be enhanced to approach specular behavior in several ways.
S. Al-Awfi
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Effect of space charge potential on the behavior of confined gaseous 238UF6 ions in paul ion trap [PDF]
مجله علوم و فنون هستهای, 2020 This paper examined the behavior of confined 238UF6 gaseous ions in Paul’s quadrupole mass spectrometer under the influence of the field induced by the RF and DC potential applied to the end cap and ring electrodes and space charge potential, based on ...
N. Pishbin +4 more
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Enhanced quadrupole effects for atoms in surface spiral beams with a thin dielectric waveguide
Alexandria Engineering Journal, 2022 Recently, some physical research has recognized the coupling of optical phase singularity light with quadrupole-active atomic transitions. We show that a Laguerre-Gaussian beam, when completely internally reflected at the dielectric/vacuum interface, can
S. Al-Awfi
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Journal of Nigerian Society of Physical Sciences, 2022 Experimentally the motional resonances spectra of an electron cloud confined in a quadrupole Penning trap, weakly excited with RF field, which is swept from 1 MHz to 1 GHz was examined. The higher order motional resonances of the electron cloud with non-
B. M. Dyavappa
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Generate localized optical vortices by quadrupole transition and twisted light
Journal of Taibah University for Science, 2021 We explain how quadrupole-active atomic interactions be able to be enhanced once the neutral atom interacts with an evanescent winding light modes.
S. Al-Awfi
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High-order correction calculation for survival of Rydberg atoms in intense laser fields
Results in Physics, 2021 Using a method based on the Magnus expansion, the survival of Rydberg atoms in intense laser fields is studied. Usually, for atoms in intense laser fields, effects beyond the electric dipole approximation need to be considered.
Jiajia Zha +5 more
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