Results 51 to 60 of about 28,722 (233)

The relevance of fluorescence radiation in Cherenkov telescopes [PDF]

open access: yesJournal of Physics: Conference Series, 2019
5 pages, 8 figures. Contribution to 26th Extended European Cosmic Ray Symposium and 35th Russian Cosmic Ray Conference (26th E+CRS / 35th RCRC), 6-10 July ...
Arqueros Martínez, Fernando   +3 more
openaire   +5 more sources

Quantum Spectrum of Cherenkov Glue

open access: yes, 2011
Full quantum calculation of Cherenkov gluon radiation by quark and gluon currents and a Cherenkov decay of a gluon into a pair of Cherenkov gluons in transparent media is performed.
A.V. Leonidov   +26 more
core   +1 more source

Activatable Photosensitizers: From Fundamental Principles to Advanced Designs

open access: yesAngewandte Chemie, Volume 137, Issue 15, April 7, 2025.
Basic concepts of designing activatable photosensitizers are established in this Review by closely examining quenching mechanisms and bioresponsive constructs essential for their function. New strategies developed in the last five years that address the shortcomings of conventional activatable photosensitizers and which enhance selectivity are also ...
Nahyun Kwon   +3 more
wiley   +2 more sources

Cherenkov Radiation from the Quantum Vacuum [PDF]

open access: yesPhysical Review Letters, 2019
A charged particle moving through a medium emits Cherenkov radiation when its velocity exceeds the phase velocity of light in that medium. Under the influence of a strong electromagnetic field, quantum fluctuations can become polarized, imbuing the vacuum with an effective anisotropic refractive index and allowing the possibility of Cherenkov radiation
MacLeod, Alexander J.   +2 more
openaire   +6 more sources

Controlling Cherenkov angles with resonance transition radiation

open access: yes, 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,
A Abashian   +53 more
core   +1 more source

A possible use for polarizers in imaging atmospheric Cherenkov telescopes [PDF]

open access: yes, 2001
Cherenkov radiation produced in Extensive Air Showers shows a net polarization. This article discusses its properties and physical origin, and proposes an arrangement of polarizers potentially useful for Imaging Atmospheric Cherenkov Telescopes.Comment ...
Cherenkov Telescopes   +4 more
core   +3 more sources

Performance of aerogel as Cherenkov radiator [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
Abstract Aerogel with index of refraction around 1.03 has been studied as Cherenkov radiator in a test at CERN PS using a π− and a mixed π+/p beam of momenta between 6 and 10 GeV /c . The Cherenkov photons were detected by means of four large HPD tubes designed and constructed at CERN.
BELLUNATO, T   +19 more
openaire   +3 more sources

Spatial distribution of Cherenkov radiation in periodic dielectric media

open access: yes, 2009
The nontrivial dispersion relation of a periodic medium affects both the spectral and the spatial distribution of Cherenkov radiation. We present a theory of the spatial distribution of Cherenkov radiation in the far-field zone inside arbitrary three ...
Bykov V P   +8 more
core   +1 more source

Imaging radiation dose in breast radiotherapy by X-ray CT calibration of Cherenkov light

open access: yesNature Communications, 2020
Imaging Cherenkov emission during radiotherapy can provide information on the delivered radiation dose, but is attenuated by optical properties of the tissue.
R. L. Hachadorian   +5 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

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