Role of ionization in imaging and spectroscopy utilizing fast electrons that have excited phonons

2021 ◽  
Vol 104 (10) ◽  
Author(s):  
Juri Barthel ◽  
Leslie J. Allen
Keyword(s):  
Fast Electrons ◽  
Imaging And Spectroscopy

The negative role of the fast electrons in the microwave oxidation of silicon

1978 ◽  
Vol 28 (6) ◽  
pp. 639-643 ◽  
Author(s):  
L. Bárdoš ◽  
J. Musil ◽  
F. Žáček ◽  
L. Hulényi
Keyword(s):  
Fast Electrons ◽  
Negative Role

The role of impurity in effect of aging on Tc of YBa2Cu3−xMxOy (M = Fe; Ni; Co; X = 0; 0.01) irradiated by fast electrons

1995 ◽  
Vol 96 (9) ◽  
pp. 707-709 ◽  
Author(s):  
S.K Nikogosian ◽  
A.A Sahakian ◽  
G.N Yeritsian ◽  
A.G Sarkisian ◽  
K.G Begoian
Keyword(s):  
Fast Electrons

scholarly journals Environmental Transmission Electron Microscopy in an Aberration-Corrected Environment

2012 ◽  
Vol 18 (4) ◽  
pp. 684-690 ◽  
Author(s):  
Thomas W. Hansen ◽  
Jakob B. Wagner
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Materials Science ◽  
Outgoing Wave ◽  
Objective Lens ◽  
Fast Electrons ◽  
Environmental Transmission ◽  
Transmission Electron ◽  
Imaging And Spectroscopy ◽  
Environmental Transmission Electron Microscopy

AbstractThe increasing use of environmental transmission electron microscopy (ETEM) in materials science provides exciting new possibilities for investigating chemical reactions and understanding both the interaction of fast electrons with gas molecules and the effect of the presence of gas on high-resolution imaging. A gaseous atmosphere in the pole-piece gap of the objective lens of the microscope alters both the incoming electron wave prior to interaction with the sample and the outgoing wave below the sample. Whereas conventional TEM samples are usually thin (below 100 nm), the gas in the environmental cell fills the entire gap between the pole pieces and is thus not spatially localized. By using an FEI Titan environmental transmission electron microscope equipped with a monochromator and an aberration corrector on the objective lens, we have investigated the effects on imaging and spectroscopy caused by the presence of the gas.

scholarly journals Enhancement of Target Normal Sheath Acceleration via Improved Fast Electron Heating in a Controlled Pre-Plasma Driven by a Femtosecond Laser Pre-Pulse

2021 ◽  
Author(s):  
Leonida Gizzi ◽  
Elisabetta Boella ◽  
Luca Labate ◽  
Federica Baffigi ◽  
Pablo Bilbao ◽  
...  
Keyword(s):  
Fast Electron ◽  
Fold Increase ◽  
Laser Pulses ◽  
Proton Acceleration ◽  
Electron Population ◽  
Fast Electrons ◽  
Thin Foils ◽  
Micrometer Scale ◽  
Scale Length

Abstract The interaction of ultraintense laser pulses with solids is largely affected by the plasma gradient at the vacuum-solid interface, which modifies the absorption and ultimately, controls the energy distribution function of heated electrons. A micrometer scale-length plasma has been predicted to yield a significant enhancement of the energy and weight of the fast electron population and to play a major role in laser-driven proton acceleration with thin foils. We report on recent experimental results on proton acceleration from laser interaction with foil targets at ultra-relativistic intensities. We show a three-fold increase of the proton cut-off energy when a micrometer scale-length pre-plasma is introduced by irradiation with a low energy femtosecond pre-pulse. Our realistic numerical simulations agree with the observed gain of the proton cut-off energy and confirm the role of stochastic heating of fast electrons in the enhancement of the accelerating sheath field.

The role of fast electrons in diffuse discharge formation: Monte Carlo simulation

2017 ◽  
Vol 26 (8) ◽  
pp. 085008 ◽  
Author(s):  
Natalia Yu Babaeva ◽  
Cheng Zhang ◽  
Jintao Qiu ◽  
Xingmin Hou ◽  
Victor F Tarasenko ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Fast Electrons ◽  
Diffuse Discharge ◽  
Discharge Formation
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