Present electron and photon scattering experiments up to GeV energies

2005 ◽  
pp. 103-120
Author(s):  
Berthold H. Schoch
Keyword(s):  
Photon Scattering ◽  
Electron And Photon

scholarly journals Cherenkov radiation from electrons passing through human tissue

2017 ◽  
Vol 10 (01) ◽  
pp. 1650055 ◽  
Author(s):  
Pavel Lukin ◽  
Izmail Batkin ◽  
Alexandr N. Almaliev ◽  
Tatyana A. Churakova ◽  
Mikhail A. Dolgopolov ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Optical Properties ◽  
Cherenkov Radiation ◽  
Photon Emission ◽  
Relativistic Electrons ◽  
Human Tissues ◽  
Photon Scattering ◽  
Electron And Photon ◽  
Visible Photon

A method for investigating the optical properties of human tissues is suggested. The method is based on the measurement of Cherenkov radiation produced by relativistic electrons passing through the tissue. Monte-Carlo simulation of visible photon emission and propagation is carried out taking into account multiple electron and photon scattering processes. Sensitivity of the Cherenkov radiation to the optical characteristics of human tissues is demonstrated.

scholarly journals Electron and photon scattering on three-nucleon bound states

2005 ◽  
Vol 415 (2-3) ◽  
pp. 89-205 ◽  
Author(s):  
J. Golak ◽  
R. Skibiński ◽  
H. Witała ◽  
W. Glöckle ◽  
A. Nogga ◽  
...  
Keyword(s):  
Bound States ◽  
Photon Scattering ◽  
Electron And Photon

scholarly journals Probing electronic and vibrational dynamics in molecules by time-resolved photoelectron, Auger-electron, and X-ray photon scattering spectroscopy

2015 ◽  
Vol 177 ◽  
pp. 405-428 ◽  
Author(s):  
Kochise Bennett ◽  
Markus Kowalewski ◽  
Shaul Mukamel
Keyword(s):  
Degrees Of Freedom ◽  
Golden Rule ◽  
Photoelectron Spectra ◽  
Photon Scattering ◽  
Vibrational Dynamics ◽  
Time Resolved ◽  
Limiting Case ◽  
Electron And Photon ◽  
Unified Description ◽  
Different Levels

We present a unified description for time-resolved electron and photon scattering spectroscopies from molecules prepared in nonstationary states. Signals are expressed in terms of superoperator Green's functions and a systematic procedure for treating various degrees of freedom consistently at different levels of theory is developed. The standard Fermi Golden Rule expressions for photoelectron spectra, which are limited to broad, slowly-varying signals, are obtained as a limiting case of our more general theory that applies to broader parameter regimes.

Radiation-induced surface decomposition

1983 ◽  
Vol 41 ◽  
pp. 368-369
Author(s):  
M. L. Knotek
Keyword(s):  
Ionizing Radiation ◽  
Atomic Structure ◽  
Chemical Bonding ◽  
Neutral Species ◽  
Radiation Induced ◽  
Physical And Chemical ◽  
Surface Decomposition ◽  
The Relationship ◽  
Electron And Photon ◽  
Surface Bond

Modern surface analysis is based largely upon the use of ionizing radiation to probe the electronic and atomic structure of the surfaces physical and chemical makeup. In many of these studies the ionizing radiation used as the primary probe is found to induce changes in the structure and makeup of the surface, especially when electrons are employed. A number of techniques employ the phenomenon of radiation induced desorption as a means of probing the nature of the surface bond. These include Electron- and Photon-Stimulated Desorption (ESD and PSD) which measure desorbed ionic and neutral species as they leave the surface after the surface has been excited by some incident ionizing particle. There has recently been a great deal of activity in determining the relationship between the nature of chemical bonding and its susceptibility to radiation damage.

Imaging through Scattering Media with a Learning Based Prior

2020 ◽  
Vol 2020 (14) ◽  
pp. 306-1-306-6
Author(s):  
Florian Schiffers ◽  
Lionel Fiske ◽  
Pablo Ruiz ◽  
Aggelos K. Katsaggelos ◽  
Oliver Cossairt
Keyword(s):  
Optimization Problem ◽  
Autonomous Driving ◽  
Scattering Media ◽  
Photon Scattering ◽  
Point Spread ◽  
Spread Function ◽  
Radiative Transport Equation ◽  
Spatio Temporal ◽  
Transient Imaging

Imaging through scattering media finds applications in diverse fields from biomedicine to autonomous driving. However, interpreting the resulting images is difficult due to blur caused by the scattering of photons within the medium. Transient information, captured with fast temporal sensors, can be used to significantly improve the quality of images acquired in scattering conditions. Photon scattering, within a highly scattering media, is well modeled by the diffusion approximation of the Radiative Transport Equation (RTE). Its solution is easily derived which can be interpreted as a Spatio-Temporal Point Spread Function (STPSF). In this paper, we first discuss the properties of the ST-PSF and subsequently use this knowledge to simulate transient imaging through highly scattering media. We then propose a framework to invert the forward model, which assumes Poisson noise, to recover a noise-free, unblurred image by solving an optimization problem.

Effects of Multiple Photon Scattering in Deciduous Tree Canopies

2009 ◽  
Author(s):  
Michael Greiner ◽  
Bradley D. Duncan ◽  
Matthew P. Dierking
Keyword(s):  
Deciduous Tree ◽  
Photon Scattering ◽  
Tree Canopies
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