Results 21 to 30 of about 172,451 (245)

Monitoring Neutron Radiation in Extreme Gamma/X-Ray Radiation Fields

open access: yesSensors, 2020
The monitoring of neutron radiation in extreme high ≈1014 (#/cm2-s) neutron/photon fields and at extremely-low (≈10−3 #/cm2-s) levels poses daunting challenges—important in fields spanning nuclear energy, special nuclear material ...
Rusi P. Taleyarkhan
doaj   +1 more source

Photon–photon scattering: a tutorial [PDF]

open access: yesCanadian Journal of Physics, 2012
Long-established results for low-energy photon–photon scattering, γγ → γγ, have recently been questioned. We analyze that claim and demonstrate that it is inconsistent with experience. We demonstrate that the mistake originates from an erroneous manipulation of divergent integrals and discuss the connection with another recent claim about the Higgs ...
Yi Liang, Andrzej Czarnecki
openaire   +4 more sources

Introduction to Photonics: Principles and the Most Recent Applications of Microstructures

open access: yesMicromachines, 2018
Light has found applications in data transmission, such as optical fibers and waveguides and in optoelectronics. It consists of a series of electromagnetic waves, with particle behavior.
Iraj Sadegh Amiri   +6 more
doaj   +1 more source

On the question of the radius of elementary particles [PDF]

open access: yesE3S Web of Conferences, 2023
This article belongs to the field of theoretical physics, specifically the study of elementary particles. We discuss the parameters of elementary particles, their interactions with gravitational potential and magnetic fields, stability with respect to ...
Safonova Nina
doaj   +1 more source

Photon-photon interaction in a photon gas [PDF]

open access: yesEurophysics Letters (EPL), 2000
Using the effective Lagrangian for the low energy photon-photon interaction the lowest order photon self energy at finite temperature and in non-equilibrium is calculated within the real time formalism. The Debye mass, the dispersion relation, the dielectric tensor, and the velocity of light following from the photon self energy are discussed.
openaire   +3 more sources

PHOTON-PHOTON INTERACTIONS [PDF]

open access: yesNuclear Physics A, 1981
Abstract A brief summary of the present status of photon-photon interactions is presented. Stress is placed on the use of two-photon collisions to test present ideas on the quark constituents of hadrons and on the theory of strong interactions.
openaire   +2 more sources

INFLUENCE OF DOSE RATE ON THE CELLULAR RESPONSE TO LOW- AND HIGH-LET RADIATIONS

open access: yesFrontiers in Oncology, 2016
Nowadays, head and neck squamous cell carcinoma (HNSCC) treatment failure is mostly explained by loco-regional progression or intrinsic radioresistance.
Anne-Sophie eWozny   +15 more
doaj   +1 more source

Photon albedo coefficients as functions of μ/Zeff parameter [PDF]

open access: yesNuclear Technology and Radiation Protection, 2013
This paper presents the results of the analyses of photon reflection from planar targets for normal photon incidence and for different shielding materials (water, concrete, aluminum, iron, and copper), in the range of the initial photon energies from ...
Ljubenov Vladan L., Simović Rodoljub D.
doaj   +1 more source

Static Schwinger-Level Electric Field Nonlinearities and Their Significance to Photons and Photon Entanglement

open access: yesFrontiers in Physics, 2021
In this work, we postulate that Schwinger’s threshold for a dynamic electric field intensity to induce spatial nonlinearity is a special case and, more generally, it is the threshold field for both static and dynamic electric fields.
Dale M. Grimes, Craig A. Grimes
doaj   +1 more source

Power-effective integral thermoelectric solar radiation converter

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2020
Aim. This article is devoted to the conversion of solar radiation into electricity using the joint effect of several methods, which complement each other by transforming the disadvantages of one method into the advantages of another method. Methods. Heat
S. M. Gadzhieva   +2 more
doaj   +1 more source

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