Thomson backscattering X-rays from ultra-relativistic electron bunches and temporally shaped laser pulses

2005 ◽  
Vol 80 (4-5) ◽  
pp. 419-436 ◽  
Author(s):  
P. Tomassini ◽  
A. Giulietti ◽  
D. Giulietti ◽  
L. A. Gizzi
Keyword(s):  
Relativistic Electron ◽  
Laser Pulses ◽  
X Rays ◽  
Electron Bunches

scholarly journals Sub-femtosecond hard X-ray radiation generated by electron bunches ejected from water jet

2013 ◽  
Vol 31 (4) ◽  
pp. 635-642 ◽  
Author(s):  
N. Zhavoronkov ◽  
A. Andreev ◽  
K. Platonov
Keyword(s):  
Laser Radiation ◽  
Frequency Conversion ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
X Rays ◽  
Fast Electrons ◽  
X Ray ◽  
Second Stage ◽  
Electron Bunches ◽  
Generate Characteristic

AbstractA new two-step approach for frequency conversion of laser radiation towards hard X-rays is developed and examined experimentally. Fast electrons are produced in a form of thin jets at the first stage, as an intense femtosecond laser pulses impinges on a micrometer water target. In the second stage the accelerated electrons hit a secondary metal target and generate characteristic K-shell radiation with a duration down to sub-femtosecond. It is shown that counter propagating laser radiation experiences very strong up-shift with up to 6 × 103 times of fundamental frequency by reflection from the electron jets.

scholarly journals Self-induced ionization injection LWFA and generation of sub-fs electron bunches with few-cycle sub-TW laser pulses

2019 ◽  
Vol 37 (2) ◽  
pp. 165-170
Author(s):  
D. Papp ◽  
N.A.M. Hafz ◽  
C. Kamperidis
Keyword(s):  
Relativistic Electron ◽  
Laser Pulses ◽  
Single Stage ◽  
Energy Spread ◽  
Two Dimensional ◽  
Linear Regime ◽  
Particle In Cell ◽  
Electron Bunches ◽  
Peak Energy ◽  
Laser Systems

AbstractWe investigate an ionization injection scheme in a “weakly” non-linear regime of a wakefield, driven by sub-TW, few-cycle laser pulses in a single-stage, high-Z gas. This medium simultaneously provides the background wake fluid electrons from its lower ionization states and the necessary dephased electrons from its higher ionization states. Two dimensional-particle-in-cell simulations show the generation of relativistic electron beamlets having up to 15 MeV peak energy, with a narrow energy-spread and sub-fs duration. Since the currently-available sub-TW, few-cycle laser systems operate at kHz repetition rates, the presented scheme is capable of producing kHz attosecond electron bunches and their associated radiations which can find unique applications, for instance, in attosecond diffraction and microscopy.

scholarly journals Concept of generation of extremely compressed high-energy electron bunches in several interfering intense laser pulses with tilted amplitude fronts

2012 ◽  
Vol 31 (1) ◽  
pp. 23-28 ◽  
Author(s):  
V.V. Korobkin ◽  
M.Yu. Romanovskiy ◽  
V.A. Trofimov ◽  
O.B. Shiryaev
Keyword(s):  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
High Energy Electron ◽  
Speed Of Light ◽  
Electron Bunches ◽  
Newton Equation ◽  
High Energies ◽  
Neutral Gas ◽  
Intense Laser Pulses

AbstractA new concept of generating tight bunches of electrons accelerated to high energies is proposed. The electrons are born via ionization of a low-density neutral gas by laser radiation, and the concept is based on the electrons acceleration in traps arising within the pattern of interference of several relativistically intense laser pulses with amplitude fronts tilted relative to their phase fronts. The traps move with the speed of light and (1) collect electrons; (2) compress them to extremely high density in all dimensions, forming electron bunches; and (3) accelerate the resulting bunches to energies of at least several GeV per electron. The simulations of bunch formation employ the Newton equation with the corresponding Lorentz force.

GENERATION OF ULTRASHORT ELECTRON BUNCHES IN NANOSTRUCTURES BY FEMTOSECOND LASER PULSES

2007 ◽  
Vol 17 (03) ◽  
pp. 571-576
Author(s):  
A. GLADUN ◽  
V. LEIMAN ◽  
A. ARSENIN ◽  
O. MANNOUN ◽  
V. TARAKANOV
Keyword(s):  
Thin Film ◽  
Laser Radiation ◽  
Femtosecond Laser ◽  
Electric Field ◽  
Surface Plasmon ◽  
Laser Pulses ◽  
Photoelectric Effect ◽  
Femtosecond Laser Pulses ◽  
Electron Bunches ◽  
Internal Photoelectric Effect

We present numerical investigation of anomalous internal photoelectric effect which is realized in thin film (< 100 nm) structures by surface plasmon (SP) excitation and its interaction with primary laser radiation. SP electric field gain and electron temperature in the SP field have been calculated.

Radiation Production Using Femtosecond Electron Bunches

2005 ◽  
Vol 107 ◽  
pp. 11-14
Author(s):  
C. Thongbai ◽  
V. Jinamoon ◽  
N. Kangrang ◽  
K. Kusoljariyakul ◽  
S. Rimjaem ◽  
...  
Keyword(s):  
Far Infrared ◽  
Bunch Length ◽  
X Rays ◽  
Research Facility ◽  
X Ray ◽  
Electron Bunches ◽  
Rf Gun ◽  
Intense Radiation ◽  
Far Infrared Radiation ◽  
Femtosecond Electron Bunches

Femtosecond electron bunches can be generated from a system consisting of an RF gun with a thermionic cathode, an alpha magnet, and a linear accelerator and can be used to produce femtosecond (fs) electromagnetic radiation pulses. At the Fast Neutron Research Facility (FNRF), Thailand, we are especially interested in production in Far-infrared (FIR) and x-radiation. In the far-infrared, radiation is emitted coherently for wavelengths which are longer than the electron bunch length, yielding intense radiation. Although, the x-rays emitted are incoherent, its femtosecond time scale is crucial for development of a femtosecond x-ray source.

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