Studies on Electron Beam Transport in a Linear Induction Accelerator for Free Electron Laser Application

Sandalov, Evgeny S.; Sinitsky, S. L.; Skovorodin, D. I.; Nikiforov, D. A.; Atlukhanov, M. G.; Bak, P. A.; Blinov, Mikhail; Бурдаков, А. В.; Kurkuchekov, V. V.; Logachev, P. V.; Petrenko, Alexey; Trunev, Yu.A.; Zhivankov, K. I.; Peskov, N. Yu.

doi:10.1109/icops36761.2021.9588436

Cited by 5 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Such an accelerator, created by the BINP, has the following parameters: beam current -up to 2 kA, electron energy -up to 20 MeV, pulse duration -about 100 ns [28][29][30]. These parameters of the beam open up the possibility of generating submillimeter radiation with a narrow spectral line at an energy content in a single pulse of ∼ 10 − 100 J [28], [31][32][33][34][35]. It should be noted that there are other physical and technical solutions for the generation of intense radiation in the submillimeter spectral region, which, unlike FELs, have a compact size; in particular, these are gyrotrons [16].…”

Section: Introductionmentioning

confidence: 99%

Energy Content and Spectral Composition of a Sub-Millimeter Radiation Flux Generated by a High-Current Electron Beam in a Plasma Column with Density Gradients

Sandalov¹

2022

Preprint

View full text Add to dashboard Cite

<div>The paper presents the results of experimental studies on the radiation flux generation in the sub-millimeter wavelength range due to a strong beam-plasma interaction. A relativistic electron eam (REB) with parameters 0.5 MeV / 12 kA / 6 us pumps plasma waves in a plasma column with a length of ~2 m at a plasma density of ~10^15cm-3 in a magnetic field of B~4 T. In the presence of density gradients in the plasma column, direct measurements of the energy content of the radiation flux 18 cm in diameter leaving the plasma column into the atmosphere showed that its value reaches 5-7 J. The pulse duration of the flux at half of its amplitude was about of 0.5 ?s, therefore, the pulse power was at the level of ~ 10 MW. In this series of experiments, the spectral composition of the radiation flux in the frequency range 0.1-0.5 THz as well as the energy distribution function of the beam electrons passed through the plasma have been measured.</div>

show abstract

Section: Introductionmentioning

confidence: 99%

Energy Content and Spectral Composition of a Sub-Millimeter Radiation Flux Generated by a High-Current Electron Beam in a Plasma Column with Density Gradients

Sandalov¹

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…В статье мы рассмотрим основные результаты экспериментальных исследований поперечной неустойчивости длинноимпульсного килоамперного электронного пучка в различных режимах по величине фокусирующих магнитных полей в ЛИУ. Актуальность этих исследований мотивирована тем, что такие электронные пучки могут быть использованы в качестве драйвера для лазера на свободных электронах (ЛСЭ), способного генерировать когерентные импульсы электромагнитного излучения с рекордными значениями импульсной мощности и энергосодержания [13][14][15][16][17] реализовать схему ЛСЭ-генератора импульсов когерентного терагерцового излучения в диапазоне частот 0,3-1,2 ТГц с суб-гигаватным уровнем мощности и энергосодержанием ~ 10-100 Дж [13; 14], в котором будет использован пучок с приемлемыми для этого параметрами [18]. При дальнейшем изложении материала статьи мы будем придерживаться следующей последовательности.…”

Section: Introductionunclassified

Investigation of the Increment of Transverse Instability of a Kiloampere Electron Beam in a Linear Induction Accelerator for Its Use in a Terahertz FEL

Sandalov

Sinitsky

Skovorodin

et al. 2022

jour

Self Cite

View full text Add to dashboard Cite

The Institute of Nuclear Physics SB RAS in cooperation with the Russian Federal Nuclear Center VNIITF performs a series of researches aimed at acquiring a relative electron beam with energy up to 20 MeV, current up to 2 kA, and duration up to 200 ns at normalized emittance ca. 1000 π∙mm∙rad in a linear induction accelerator (LIA). In order to generate electron beams with such parameters we require thorough investigation of all main sources of perturbation of electron beam trajectory caused by different instabilities that occur during the transport and acceleration of a high currency beam in the accelerating structure of LIA. For the experimental series on measuring the dynamics of transverse oscillation of a beam, we applied a set of fast current transformers which are used for registration of beam current and mode fields caused by this beam in the structure. These measurements were performed for the electron beam with the energy of 8.5 MeV and current of 1 kA going through the structure at different modes of focusing magnetic fields size in LIA. As a result, we registered oscillation of the electromagnetic field of normal modes in the accelerating modules of LIA, as well as we determined the dependence of the oscillation amplitude of these modes’ EM field on the number of accelerating module. This dependence was compared with the result of modeling of development dynamics of transverse instability in LIA that was performed using the created program system. This allowed us to determine the size of the increment of transverse instability of a relativistic electron beam under the given experimental conditions. Based on the acquired results, we made the analysis of possibility to use the beam generated in ILA as a driver for the FEL generator of coherent impulses of THz radiation within the frequency range of 0.3–1.2 THz with a sub-gigawatt level of power.

show abstract

Frequency Spectrum of the Radiation Flow in the Frequency Range 0.1–0.6 THZ Generated at the GOL–PET Facility Under Various Conditions

Samtsov

Аржанников

Sinitsky

et al. 2022

Radiophys Quantum El

View full text Add to dashboard Cite

Studies on Electron Beam Transport in a Linear Induction Accelerator for Free Electron Laser Application

Cited by 5 publications

References 2 publications

Energy Content and Spectral Composition of a Sub-Millimeter Radiation Flux Generated by a High-Current Electron Beam in a Plasma Column with Density Gradients

Energy Content and Spectral Composition of a Sub-Millimeter Radiation Flux Generated by a High-Current Electron Beam in a Plasma Column with Density Gradients

Investigation of the Increment of Transverse Instability of a Kiloampere Electron Beam in a Linear Induction Accelerator for Its Use in a Terahertz FEL

Frequency Spectrum of the Radiation Flow in the Frequency Range 0.1–0.6 THZ Generated at the GOL–PET Facility Under Various Conditions

Contact Info

Product

Resources

About