scholarly journals Strong Radiation-Damping Effects in a Gamma-Ray Source Generated by the Interaction of a High-Intensity Laser with a Wakefield-Accelerated Electron Beam

2012 ◽  
Vol 2 (4) ◽  
Author(s):  
A. G. R. Thomas ◽  
C. P. Ridgers ◽  
S. S. Bulanov ◽  
B. J. Griffin ◽  
S. P. D. Mangles
Keyword(s):  
Electron Beam ◽  
High Intensity ◽  
Gamma Ray ◽  
Radiation Damping ◽  
High Intensity Laser ◽  
Damping Effects ◽  
Intensity Laser ◽  
Strong Radiation

RADIATION DAMPING AND THE ELECTRON MASS SHIFT IN HIGH INTENSITY LASER FIELDS

2012 ◽  
Vol 14 ◽  
pp. 367-375
Author(s):  
CHRISTOPHER HARVEY ◽  
MATTIAS MARKLUND
Keyword(s):  
High Intensity ◽  
Strong Field ◽  
Center Of Mass ◽  
Radiation Damping ◽  
Mass Shift ◽  
Back Reaction ◽  
Electron Mass ◽  
High Intensity Laser ◽  
Dependent Mass ◽  
Intensity Laser

We explore the effects of radiation damping on electrons in a high intensity laser pulse. From classical simulations it is found that an electron can get captured in the beam focus, solely because of its radiation back reaction. This capture regime is considered in the context of an intensity-dependent mass shift of the electron. It is demonstrated that the mass shift is not just a classical effect, occurring also in the (strong field) QED theory. Using the QED process of nonlinear Compton scattering as an example, we show that the condition for the onset of electron capture is the same as the definition of the center-of-mass frame for the effective mass kinematics.

scholarly journals Modelling gamma-ray photon emission and pair production in high-intensity laser–matter interactions

2014 ◽  
Vol 260 ◽  
pp. 273-285 ◽  
Author(s):  
C.P. Ridgers ◽  
J.G. Kirk ◽  
R. Duclous ◽  
T.G. Blackburn ◽  
C.S. Brady ◽  
...  
Keyword(s):  
Pair Production ◽  
High Intensity ◽  
Gamma Ray ◽  
Photon Emission ◽  
High Intensity Laser ◽  
Intensity Laser

Excitation of high-intensity laser radiation of semiconductor targets by a subnanosecond electron beam

2017 ◽  
Vol 60 (5) ◽  
pp. 710-715 ◽  
Author(s):  
M. I. Yalandin ◽  
M. B. Bochkarev ◽  
S. A. Shunailov ◽  
A. G. Sadykova ◽  
A. S. Nasibov ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laser Radiation ◽  
High Intensity ◽  
High Intensity Laser ◽  
Intensity Laser

scholarly journals Signatures of quantum effects on radiation reaction in laser–electron-beam collisions

2017 ◽  
Vol 83 (5) ◽  
Author(s):  
C. P. Ridgers ◽  
T. G. Blackburn ◽  
D. Del Sorbo ◽  
L. E. Bradley ◽  
C. Slade-Lowther ◽  
...  
Keyword(s):  
Electron Beam ◽  
Laser Pulse ◽  
High Intensity ◽  
Average Energy ◽  
Quantum Effects ◽  
Radiation Reaction ◽  
High Intensity Laser ◽  
Efficiency Parameter ◽  
Laser Systems ◽  
Intensity Laser

Two signatures of quantum effects on radiation reaction in the collision of a ${\sim}$GeV electron beam with a high intensity (${>}3\times 10^{20}~\text{W}~\text{cm}^{-2}$) laser pulse have been considered. We show that the decrease in the average energy of the electron beam may be used to measure the Gaunt factor $g$ for synchrotron emission. We derive an equation for the evolution of the variance in the energy of the electron beam in the quantum regime, i.e. quantum efficiency parameter $\unicode[STIX]{x1D702}\not \ll 1$. We show that the evolution of the variance may be used as a direct measure of the quantum stochasticity of the radiation reaction and determine the parameter regime where this is observable. For example, stochastic emission results in a 25 % increase in the standard deviation of the energy spectrum of a GeV electron beam, 1 fs after it collides with a laser pulse of intensity $10^{21}~\text{W}~\text{cm}^{-2}$. This effect should therefore be measurable using current high-intensity laser systems.

Sign in / Sign up

Export Citation Format

Share Document