scholarly journals Effect of an electric field on liquid helium scintillation produced by fast electrons

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
N. S. Phan ◽  
V. Cianciolo ◽  
S. M. Clayton ◽  
S. A. Currie ◽  
R. Dipert ◽  
...  
Keyword(s):  
Electric Field ◽  
Liquid Helium ◽  
Fast Electrons

Electric-field dependence of muonium formation in liquid helium

1994 ◽  
Vol 87 (1) ◽  
pp. 1011-1016 ◽  
Author(s):  
Evgenji Krasnoperov ◽  
Evgenji E. Meilikhov ◽  
Dimitrji Eschenko ◽  
Dierk Herlach ◽  
Elvezio Morenzoni ◽  
...  
Keyword(s):  
Electric Field ◽  
Liquid Helium ◽  
Field Dependence ◽  
Muonium Formation ◽  
Electric Field Dependence

scholarly journals Ion energy enhancement from TNSA plasmas obtained from advanced targets

2014 ◽  
Vol 32 (3) ◽  
pp. 383-389 ◽  
Author(s):  
L. Torrisi
Keyword(s):  
Electric Field ◽  
Double Layer ◽  
Laser Intensity ◽  
Laser Wavelength ◽  
Rear Side ◽  
Energetic Ions ◽  
Ion Energy ◽  
Fast Electrons ◽  
Surface Reflection ◽  
Laser Absorption

AbstractLaser generated plasmas from target normal sheath acceleration produce energetic ions from the rear side of the target due to the formation of a high directive electric field. Fast electrons are ejected from the rear side of the target and a successive Coulomb explosion is driven by the fast electrons generating a high electric field of double layer. The ion acceleration is mainly controlled by the laser intensity and by the square of the laser wavelength. Literature reports that at intensities of the order of 1018 W/cm2 and at wavelengths of about 1 µm the ion energy is of the order of 5 MeV/nucleon. The use of advanced targets realized with the aim to reduce the surface reflection, to increase the laser absorption coefficient and, with an optimal thickness, to increase the electric field of the double layer, permits to enhance the ion energy acceleration, so that the energy of 5.0 MeV per charge state can be reached at about 1016 W/cm2, as it will be presented and discussed.

Positron annihilation in liquid helium and liquid argon under an electric field

1995 ◽  
Vol 28 (16) ◽  
pp. 3643-3659 ◽  
Author(s):  
I Pepe ◽  
D A L Paul ◽  
J Steyaert ◽  
F Gimeno-Nogues ◽  
J Deutsch ◽  
...  
Keyword(s):  
Electric Field ◽  
Positron Annihilation ◽  
Liquid Helium ◽  
Liquid Argon

scholarly journals Proton acceleration by fast electrons in laser–solid interactions

2002 ◽  
Vol 20 (2) ◽  
pp. 243-253 ◽  
Author(s):  
J.R. DAVIES
Keyword(s):  
Electric Field ◽  
Fast Electron ◽  
Proton Energy ◽  
High Energy ◽  
Dimensional Model ◽  
Proton Acceleration ◽  
Fast Electrons ◽  
One Dimensional ◽  
Long Pulse ◽  
Laser Solid Interactions

The emission of high-energy protons in laser–solid interactions and the theories that have been used to explain it are briefly reviewed. To these theories we add a further possibility: the acceleration of protons inside the target by the electric field generated by fast electrons. This is considered using a simple one-dimensional model. It is found that for relativistic laser intensities and sufficiently long pulse durations, the proton energy gain is typically several times the fast electron temperature. The results are very similar to those obtained for proton acceleration by electron expansion into vacuum.

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