Results 21 to 30 of about 1,822,530 (262)
Cherenkov Radiation Control via Self-accelerating Wave-packets [PDF]
Scientific Reports, 2017 Cherenkov radiation is a ubiquitous phenomenon in nature. It describes electromagnetic radiation from a charged particle moving in a medium with a uniform velocity larger than the phase velocity of light in the same medium.
Yi Hu +5 more
doaj +2 more sources
Cherenkov Gravitational Radiation during the Radiation Era [PDF]
Universe, 2021 Cherenkov radiation may occur whenever the source is moving faster than the waves it generates. In a radiation dominated universe, with equation-of-state w=1/3, we have recently shown that the Bardeen scalar-metric perturbations contribute to the ...
Yi-Zen Chu, Yen-Wei Liu
doaj +3 more sources
Slow group velocity and Cherenkov radiation [PDF]
Physical Review Letters, 2001 We theoretically study the effect of ultraslow group velocities on the emission of Vavilov-Cherenkov radiation in a coherently driven medium. We show that in this case the aperture of the group cone on which the intensity of the radiation peaks is much ...
C. Liu +24 more
core +8 more sources
Generation of coherent THz Cherenkov radiation by electron bunch tilt control [PDF]
Physical Review Accelerators and Beams, 2022 We propose a new method that generates coherent Cherenkov radiation by controlling the tilt of the electron bunch. In this scheme, the wavelength band of coherent radiation depends on the transverse size of the electron bunch.
Yuichi Tadenuma +8 more
doaj +2 more sources
Cherenkov radiation from stars constrains hybrid MOND dark matter models [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We propose a new method to constrain alternative models for dark matter with observations. Specifically, we consider hybrid models in which cold dark matter (CDM) phenomena on cosmological scales and Modified Newtonian Dynamics (MOND) phenomena on ...
Tobias Mistele
openalex +3 more sources
Controlling Cherenkov angles with resonance transition radiation
Nature Physics, 2018 Cherenkov radiation provides a valuable way to identify high energy particles in a wide momentum range, through the relation between the particle velocity and the Cherenkov angle. However, since the Cherenkov angle depends only on material's permittivity,
Xiao Lin, Sajan Easo, Yichen Shen
exaly +3 more sources
Cherenkov-transition radiation in a waveguide partly filled with a resonance dispersion medium [PDF]
Physical Review Special Topics. Accelerators and Beams, 2015 We analyze the electromagnetic field of a charged particle that uniformly moves in a circular waveguide and crosses a boundary between a dielectric medium, which possesses frequency dispersion of a resonant type, and a vacuum area.
Tatiana Yu. Alekhina +2 more
doaj +2 more sources
Gamma Ray Cherenkov-Transition Radiation [PDF]
EPL (Europhysics Letters), 2013 The production of gamma-ray Cherenkov-transition radiation (GCTR) by charged particles in the photon energy region 0.8 - 2 MeV is studied theoretically using the results of the recent discovery that in the above mentioned region the dielectric constant ...
Aginian, M. A. +2 more
core +2 more sources
Evaluation of Cherenkov-induced photodynamic therapy of biohybrid photosensitive graphene oxide nanoplatform in cervical cancer cells [PDF]
Iranian Journal of Basic Medical SciencesObjective(s): During radiotherapy, weak photons of Cherenkov radiation are generated, which can cause a relative increase in tumor resistance and cause errors in the radiotherapy treatment planning process.
Mona Alikhanzadeh +4 more
doaj +2 more sources
Cooperative quasi-Cherenkov radiation [PDF]
, 2014 14 figures.
S. V. Anishchenko, V.G. Baryshevsky
openalex +3 more sources