Results 41 to 50 of about 251,878 (309)

About elementary particles

open access: yesЛитьë и металлургия, 2023
It is shown that only stable particles can be elementary particles. The fundamental elementary particles are positive, negative and neutral particles of space.
V. Yu. Stetsenko
doaj   +1 more source

The attenuation of atmospheric Cerenkov photons [PDF]

open access: yes, 2002
Whilst the atmosphere places a limit on the successful applications of many branches of astronomy, it becomes an invaluable tool for the detection of very high energy γ-rays. This thesis is concerned with reducing the systematic uncertainties inherent to
Daniel, Michael Kevin, Daniel, Michael
core   +1 more source

Phase distortions of attosecond pulses produced by resonance-enhanced high harmonic generation

open access: yesNew Journal of Physics, 2013
Resonant enhancement of high harmonic generation can be obtained in plasmas containing ions with strong radiative transitions resonant with harmonic orders. The mechanism for this enhancement is still debated.
S Haessler   +9 more
doaj   +1 more source

Charge noise and spin noise in a semiconductor quantum device [PDF]

open access: yes, 2014
Self-assembled quantum dots are very attractive as the building blocks for quantum light sources and spin qubits. For instance, a single quantum dot is a robust, fast, narrow-linewidth source of single photons, features not shared by any other ...
Kuhlmann, Andreas V.
core   +1 more source

Photon differentials [PDF]

open access: yesProceedings of the 5th international conference on Computer graphics and interactive techniques in Australia and Southeast Asia, 2007
A number of popular global illumination algorithms uses density estimation to approximate indirect illumination. The density estimate is performed on finite points -- particles -- generated by a stochastic sampling of the scene. In the course of the sampling, particles, representing light, are stochastically emitted from the light sources and reflected
Lars Schjøth   +3 more
openaire   +4 more sources

Light source-detector pair positioning to optimize tagging efficiency of focused ultrasound-modulated photons in a backward detection mode

open access: yes, 2023
Focusing Ultrasound (FUS) can be used to modulate diffusing light in tissue. In this method, diffused photons are modulated in the ultrasound focus area.
Bykov, Alexander   +5 more
core   +1 more source

Photon-aided and photon-inhibited tunneling of photons [PDF]

open access: yesPhysical Review A, 2013
In light of the interest in the transport of single photons in arrays of waveguides, fiber couplers, photonic crystals, etc., we consider the quantum mechanical process of the tunneling of photons through evanescently or otherwise coupled structures.
Xuele Liu, G. S. Agarwal
openaire   +1 more source

Search for new physics in events with photons, jets, and missing transverse energy in pp collisions at s√ = 7 TeV [PDF]

open access: yes, 2012
A search for physics beyond the standard model involving events with one or more photons, jets, and missing transverse energy has been performed by the CMS experiment.
S. Lynch   +999 more
core   +1 more source

The conversion coefficients from Нр(10) to effective dose in the fields of photon radiation and their use in the development of occupational exposure models

open access: yesРадиационная гигиена, 2023
The paper presents the values of the conversion coefficients from the operational quantity, HP(10)/ to the protection quantity, effective dose (E). The conversion coefficients were calculated in a number of points located at a depth of 10 mm under the ...
V. Yu. Golikov
doaj   +1 more source

Evaluation of the Electron Contamination in Photon Therapy Using BEAMnrc Code

open access: yesمجله دانشکده پزشکی اصفهان, 2019
Background: Today, high-energy photon beams are widely used in the treatment of all types of cancers. However, the production of electrons as contaminants in the photon pathway provides the necessity for research in this field.
Nahid Chegeni   +3 more
doaj   +1 more source

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