Energy loss by non-relativistic electrons and positrons in liquid water

2002 ◽  
Vol 194 (3) ◽  
pp. 237-250 ◽  
Author(s):  
Simon M. Pimblott ◽  
Laurens D.A. Siebbeles
Keyword(s):  
Energy Loss ◽  
Liquid Water ◽  
Relativistic Electrons ◽  
Electrons And Positrons

scholarly journals Simulation of ultra-relativistic electrons and positrons channeling in crystals with MBN Explorer

2013 ◽  
Vol 252 ◽  
pp. 404-418 ◽  
Author(s):  
Gennady B. Sushko ◽  
Victor G. Bezchastnov ◽  
Ilia A. Solovʼyov ◽  
Andrei V. Korol ◽  
Walter Greiner ◽  
...  
Keyword(s):  
Relativistic Electrons ◽  
Electrons And Positrons

ENERGY DEPOSITION OF RELATIVISTIC ELECTRONS IN SUPER-HOT PLASMA

2007 ◽  
Vol 21 (27) ◽  
pp. 1855-1862 ◽  
Author(s):  
TONG-CHENG WU ◽  
XUAN ZHANG ◽  
WEI-KE AN
Keyword(s):  
Electron Beam ◽  
Energy Loss ◽  
Energy Deposition ◽  
Plasma Oscillation ◽  
Lorentz Factor ◽  
Relativistic Electrons ◽  
Exact Relation ◽  
Loss Mechanism ◽  
Electron Collisions ◽  
Thermonuclear Fuel

The intense ultrashort laser interacting with the thermonuclear fuel may produce a relativistic plasma and MeV electron beam, how to fix the Lorentz factors of the particles in the plasma and model the energy deposition of MeV electron beams are important subjects. In this letter, we demonstrate the exact relation between the average Lorentz factor and the temperature of the system; and then obtained the relativistic modified formula for the energy loss of the relativistic electron-beam due to binary electron-electron collisions. Another important energy loss mechanism, the excitation of Langmuir collective plasma oscillation, is also treated within the relativistic framework. Hence, we re-examine theoretically the possibility of igniting hot spots in the super-compressed DT target and the answer is that the fast ignitor scenario is able to yield thermonuclear ignition in the target.

New module for channeling radiation simulation in Geant4

2021 ◽  
Vol 16 (12) ◽  
pp. P12042
Author(s):  
A.A. Savchenko ◽  
W. Wagner
Keyword(s):  
Experimental Data ◽  
Single Crystals ◽  
Dipole Approximation ◽  
Relativistic Electrons ◽  
Planar Channeling ◽  
Classical Approach ◽  
Electrons And Positrons ◽  
Simulation Results ◽  
Channeling Radiation ◽  
Good Agreement

Abstract We present a new C++ module for simulation of channeling radiation to be implemented in Geant4 as a discrete physical process. The module allows simulation of channeling radiation from relativistic electrons and positrons with energies above 100 MeV for various types of single crystals. In this paper, we simulate planar channeling radiation applying the classical approach in the dipole approximation as a first attempt not yet considering other contributory processes. Simulation results are proved to be in a rather good agreement with experimental data.

scholarly journals QUANTUM ELECTRODYNAMICS OF RELATIVISTIC BOUND STATES WITH CUTOFFS

2004 ◽  
Vol 01 (02) ◽  
pp. 271-314 ◽  
Author(s):  
JEAN-MARIE BARBAROUX ◽  
MOUEZ DIMASSI ◽  
JEAN-CLAUDE GUILLOT
Keyword(s):  
Current Density ◽  
Coulomb Potential ◽  
Ground State ◽  
Quantum Electrodynamics ◽  
Bound States ◽  
Coupling Constants ◽  
Relativistic Electrons ◽  
Small Coupling ◽  
Electrons And Positrons ◽  
Relativistic Bound States

We consider a Hamiltonian with ultraviolet and infrared cutoffs, describing the interaction of relativistic electrons and positrons in the Coulomb potential with photons in Coulomb gauge. The interaction includes both interaction of the current density with transversal photons and the Coulomb interaction of charge density with itself. We prove that the Hamiltonian is self-adjoint and has a ground state for sufficiently small coupling constants.

Brechung und Reflexion schneller Elektronen durch dünne Folien

1968 ◽  
Vol 23 (12) ◽  
pp. 1988-1994
Author(s):  
H. Zeidl ◽  
H. Baier
Keyword(s):  
Energy Loss ◽  
Secondary Electron Emission ◽  
Experimental Methods ◽  
Relativistic Electrons ◽  
Angle Of Incidence ◽  
Step Method ◽  
Computational Program ◽  
Thin Foils ◽  
The Monte Carlo Method ◽  
The Mean

The Monte Carlo method is applied to investigate the penetration of fast electron through thin foils of matter. The “step by step method” is used. Energy loss and secondary electron emission are taken into account. As an example for the possible application of the computational program we calculated “refraction” and “reflection” of relativistic electrons on thin Al-foils. Scattering and reflection depends significantly on the energy loss of the electrons in the foil. The “mean scattering angle” of the electron beam (with respect to the foil normal) has been shown to be smaller than the angle of incidence (with respect to the foil normal). Possible experimental methods to test the predictions on mean scattering and reflection angles (as defined in this paper) are discussed.

Energy loss measurement of protons in liquid water

2011 ◽  
Vol 56 (8) ◽  
pp. 2367-2374 ◽  
Author(s):  
T Siiskonen ◽  
H Kettunen ◽  
K Peräjärvi ◽  
A Javanainen ◽  
M Rossi ◽  
...  
Keyword(s):  
Energy Loss ◽  
Liquid Water ◽  
Loss Measurement
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