scholarly journals Использование многоканальных лазерных комплексов для создания некогерентной накачки в комптоновских лазерах на свободных электронах рентгеновского диапазона

2018 ◽  
Vol 44 (14) ◽  
pp. 3
Author(s):  
Н.С. Гинзбург ◽  
Е.Р. Кочаровская ◽  
М.Н. Вилков ◽  
А.С. Сергеев
Keyword(s):  
Electron Beam ◽  
Energy Spectrum ◽  
Relativistic Electron Beam ◽  
High Efficiency ◽  
Relative Width ◽  
Free Electron Lasers ◽  
High Current ◽  
Scattering Process ◽  
X Ray ◽  
Multichannel Laser

AbstractIt is used that there is great potential in the use of multichannel laser complexes for incoherent pumping of X-ray Compton free-electron lasers based on stimulated wave backscattering on high-current moderately relativistic electron beam. The relative width of the pump spectrum must be comparable with that of the energy spectrum of the electron beam, which ensures involvement of a significant fraction of particles into the scattering process and, hence, high efficiency of their kinetic energy conversion into X-ray radiation.

Pulse Shaping a High-Current Relativistic Electron Beam in Vacuum

1990 ◽  
Author(s):  
J. D. Miller ◽  
R. F. Schneider ◽  
H. S. Uhm ◽  
K. T. Nguyen ◽  
K. W. Struve
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Pulse Shaping ◽  
High Current

Formation and emission of intense electromagnetic pulses by means of an insulated rod antenna excited by a short-duration high-current relativistic electron beam

2000 ◽  
Vol 26 (4) ◽  
pp. 360-362 ◽  
Author(s):  
N. I. Gaponenko ◽  
A. M. Gorban’ ◽  
D. V. Gorozhanin ◽  
V. I. Kurilko ◽  
S. M. Latinskii ◽  
...  
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Short Duration ◽  
Relativistic Electron Beam ◽  
High Current ◽  
Electromagnetic Pulses

Influence of Electron Beam Pulsed Times on the Properties of 40Cr

2010 ◽  
Vol 154-155 ◽  
pp. 1170-1177
Author(s):  
Yuan Fang Chen ◽  
Xiao Dong Peng ◽  
Jian Jun Hu ◽  
Hong Bin Xu ◽  
Chan Hao
Keyword(s):  
Surface Roughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Electron Beam ◽  
High Current ◽  
Wear Properties ◽  
X Ray ◽  
Pulsed Electron Beam ◽  
Surface Microstructures ◽  
40Cr Steel

Surface modification of 40Cr steel by high current pulsed electron beam has been investigated . The pulsed times of HCPEB was changed from 1 to 25 to prepare different specimens. Surface microstructures and section microstructures after HCPEB irradiation were detected by using metallurgical microscope, SEM and X-ray diffractometer. It is shown that crater defects were found on the surface after the irradiation of HCPEB and the density of craters will decrease with increasing pulses times. When treated by 27Kev accelerating voltage, with increasing pulse times, the particles located in surface layer were obviously refined .The surface roughness, hardness, wear properties and corrosion resistance were analyzed after irradiation of HCPEB. The wear resistance and corrosion resistance were obviously enhanced after 10 pulses treatment.

Diffraction properties of a strongly bent diamond crystal used as a dispersive spectrometer for XFEL pulses

2019 ◽  
Vol 26 (4) ◽  
pp. 1069-1072 ◽  
Author(s):  
Liubov Samoylova ◽  
Ulrike Boesenberg ◽  
Aleksandr Chumakov ◽  
Vladimir Kaganer ◽  
Ilia Petrov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Energy Spectrum ◽  
Strain Gradient ◽  
Free Electron ◽  
Diamond Crystal ◽  
Energy Spectra ◽  
Theoretical Modelling ◽  
Free Electron Lasers ◽  
X Ray ◽  
Stochastic Nature

Self-amplified spontaneous emission (SASE) enables X-ray free-electron lasers (XFELs) to generate hard X-ray pulses of sub-100 fs duration. However, due to the stochastic nature of SASE, the energy spectrum fluctuates from pulse to pulse. Many experiments that employ XFEL radiation require the resolution of the spectrum of each pulse. The work presented here investigates the capacity of a thin strongly bent diamond crystal to resolve the energy spectra of hard X-ray SASE pulses by studying its diffraction properties. Rocking curves of the symmetric C*(440) reflection have been measured for different bending radii. The experimental data match the theoretical modelling based on the Takagi–Taupin equations of dynamical diffraction. A uniform strain gradient has proven to be a valid model of strain deformations in the crystal.

RS-20MR High-Current Relativistic Electron Beam Generator Based on a Plasma Opening Switch and Its Applications

2019 ◽  
Vol 45 (4) ◽  
pp. 315-324
Author(s):  
G. I. Dolgachev ◽  
E. D. Kazakov ◽  
Yu. G. Kalinin ◽  
D. D. Maslennikov ◽  
A. A. Shvedov
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
High Current ◽  
Plasma Opening Switch ◽  
Opening Switch
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