On prospects of powerful SXR pulse generation on “Gamma 4” facility

RFNC-VNIIEF is creating a multi-module multi-terawatt electro-physical facility “Gamma”, intended for research in the field of radiation physics. Up to now RFNC-VNIIEF created the first module of the facility – a high-current pulsed electron accelerator “Gamma-1”, having the following parameters: boundary energy of the electrons of ≤ 2.0 MeV, diode current of 0.75 MA, maximum electric power of 1.5 TW. Creation of the 4-module variant of the facility (Gamma-4) is the next stage of the work. This paper presents calculation research of expected characteristics of soft x-ray radiation output pulse at “Gamma-4” facility operation into a common load (Z-pinch).

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High-current pulsed electron accelerator “Gamma-1” with output power up to 1.5 TW

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194514603305 ◽

2014 ◽

Vol 32 ◽

pp. 1460330 ◽

Cited By ~ 1

Author(s):

N. V. Zavyalov ◽

V. S. Gordeev ◽

V. T. Punin ◽

A. V. Grishin ◽

G. A. Myskov ◽

...

Keyword(s):

Electric Power ◽

Output Power ◽

Electron Accelerator ◽

High Current ◽

Radiation Physics ◽

Current Electron ◽

Electric Parameters ◽

Accelerator Design ◽

Diode Current ◽

High Current Electron

A multi-module multi-terawatt electrophysical facility “Gamma” is being developed at RFNCVNIIEF, Sarov, Russia. The facility will be used for conducting experiments in different fields of radiation physics. The first module of the facility – a high-current electron accelerator “Gamma-1” has been created. The output electric parameters of the module are as follows: electron energy ≤2.0 MeV, diode current 0.75 MA, maximal electric power 1.5 TW. Description of accelerator design and principles of its operation are presented. Results of experiments as well as further prospects on building a full-scale facility are given.

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Soft X-ray Spectra Analysis in a High-Current Z-Pinch

10.1063/1.2949205 ◽

1994 ◽

Cited By ~ 2

Author(s):

F. B. Rosmej ◽

O. N. Rosmej ◽

S. A. Komarov ◽

V. O. Mishensky ◽

J. G. Utjugov ◽

...

Keyword(s):

High Current ◽

Spectra Analysis ◽

X Ray ◽

Z Pinch

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A fast time-response bolometer for soft X-ray radiation energy measurements in a high-current Z-pinch

Instruments and Experimental Techniques ◽

10.1134/s0020441214020122 ◽

2014 ◽

Vol 57 (2) ◽

pp. 183-188 ◽

Cited By ~ 3

Author(s):

P. B. Repin ◽

I. M. Markevtsev ◽

S. Yu. Kornilov

Keyword(s):

Radiation Energy ◽

Time Response ◽

Fast Time ◽

High Current ◽

X Ray ◽

Z Pinch

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Spatial resolution of X-ray microanalysis in thin foils

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100109860 ◽

1978 ◽

Vol 36 (1) ◽

pp. 544-545

Author(s):

R. Hutchings ◽

I.P. Jones ◽

M.H. Loretto ◽

R.E. Smallman

Keyword(s):

Spatial Resolution ◽

Electron Probe ◽

Beam Divergence ◽

Inelastic Interaction ◽

Specimen Thickness ◽

High Current ◽

Beam Spreading ◽

X Ray ◽

Thin Foils ◽

Complex Calculation

There is increasing interest in X-ray microanalysis of thin specimens and the present paper attempts to define some of the factors which govern the spatial resolution of this type of microanalysis. One of these factors is the spreading of the electron probe as it is transmitted through the specimen. There will always be some beam-spreading with small electron probes, because of the inevitable beam divergence associated with small, high current probes; a lower limit to the spatial resolution is thus 2αst where 2αs is the beam divergence and t the specimen thickness.In addition there will of course be beam spreading caused by elastic and inelastic interaction between the electron beam and the specimen. The angle through which electrons are scattered by the various scattering processes can vary from zero to 180° and it is clearly a very complex calculation to determine the effective size of the beam as it propagates through the specimen.

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Few-Cycle Infrared Pulse Evolving in FEL Oscillators and Its Application to High-Harmonic Generation for Attosecond Ultraviolet and X-ray Pulses

Atoms ◽

10.3390/atoms9010015 ◽

2021 ◽

Vol 9 (1) ◽

pp. 15

Author(s):

Ryoichi Hajima

Keyword(s):

Harmonic Generation ◽

Short Pulse ◽

High Harmonic ◽

High Harmonic Generation ◽

Pulse Generation ◽

Solid State Lasers ◽

Linear Accelerators ◽

X Ray ◽

Ultrafast Science ◽

Historical Remarks

Generation of few-cycle optical pulses in free-electron laser (FEL) oscillators has been experimentally demonstrated in FEL facilities based on normal-conducting and superconducting linear accelerators. Analytical and numerical studies have revealed that the few-cycle FEL lasing can be explained in the frame of superradiance, cooperative emission from self-bunched systems. In the present paper, we review historical remarks of superradiance FEL experiments in short-pulse FEL oscillators with emphasis on the few-cycle pulse generation and discuss the application of the few-cycle FEL pulses to the scheme of FEL-HHG, utilization of infrared FEL pulses to drive high-harmonic generation (HHG) from gas and solid targets. The FEL-HHG enables one to explore ultrafast science with attosecond ultraviolet and X-ray pulses with a MHz repetition rate, which is difficult with HHG driven by solid-state lasers. A research program has been launched to develop technologies for the FEL-HHG and to conduct a proof-of-concept experiment of FEL-HHG.

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Influence of High Current Pulsed Electron Beam Irradiation on Ni-P Electroless Plating

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.299-300.77 ◽

2011 ◽

Vol 299-300 ◽

pp. 77-81

Author(s):

Yang Xu ◽

Sheng Zhi Hao ◽

Xiang Dong Zhang ◽

Min Cai Li ◽

Chuang Dong

Keyword(s):

Electroless Plating ◽

Electron Beam Irradiation ◽

Xrd Analysis ◽

High Current ◽

X Ray Diffraction ◽

X Ray ◽

Pulsed Electron Beam ◽

6063 Aluminum Alloy ◽

Pre Treatment ◽

Better Than

The surface irradiation of 6063 aluminum alloy by high current pulsed electron was conducted with the aim of replacing the complicated pre-treatment in the processes of electroless plating. To explore the microstructure changes, optical metallography, SEM (scanning electron microscope), XRD (X-ray diffraction) analyses were carried out, and the sliding tests were used for the detection of wear resistance. It was concluded that the HCPEB irradiation could replace the pre-treatment of aluminum substrate as required in conventional electroless plating with a decreased surface roughness of Ni-P alloy plating layer. The plates exhibited an amorphous microstructure as demonstrated by XRD analysis. The plates, produced with the routine of HCPEB irradiation, activation and electroless plating possess, also exhibited good quality, even better than that of conventional electroless plating technique.

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