Photonuclear experiments with Compton-backscattered gamma beams

Nedorezov, V.; Turinge, A.; Shatunov, Yurii M.

doi:10.3367/ufnr.0174.200404b.0353

Cited by 13 publications

(3 citation statements)

References 45 publications

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“…The scattering of intense laser pulses on high-energy electron beams is a well-established method for generating X and γ−radiation with application in medicine, ultrafast radiography and nuclear physics [1][2][3][4][5][6]. Recent developments in both compact powerful laser systems and compact laser-plasma based accelerators (LPAs) [6][7][8][9][10][11] has increased interest in compact Compton photon sources. Small intensities of an incident laser pulse lead to meager photon yields.…”

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confidence: 99%

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Towards high photon density for Compton Scattering by spectral chirp

Valialshchikov,

Seipt,

Kharin

et al. 2022

Preprint

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Scattering of intense laser pulses on high-energy electron beams allows one to produce a large number of X and γ rays. For temporally pulsed lasers the resulting spectra is broadband which severely limits practical applications. One could use linearly chirped laser pulses to compensate that broadening. We show for laser pulses chirped in the spectral domain that there is the optimal chirp parameter at which the spectra has the brightest peak. Additionally, we use catastrophe theory to analytically find this optimal chirp value.

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confidence: 99%

“…For a fixed value of φ Eqs. ( 8)- (9) give us frequency and angle (if it exists) at which folds are located. From Eq.…”

mentioning

confidence: 99%

Towards high photon density for Compton Scattering by spectral chirp

Valialshchikov,

Seipt,

Kharin

et al. 2022

Preprint

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“…Recently, there has been a revival of interest in the Compton photon sources based on scattering of intense laser pulses from relativistic electron beams, which is apparently due to the present day availability and maturing of both compact powerful laser systems and compact laser-plasma based accelerators (LPAs) [1][2][3]. Main advantage of Compton based photon sources over, for example, bremsstrahlung sources is their monochromaticity allowing their usage in nuclear spectroscopy [2,[4][5][6], medicine [7,8] and other applications [9,10].…”

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confidence: 99%

Narrow bandwidth gamma comb from nonlinear Compton scattering using the polarization gating technique

Valialshchikov,

Kharin,

Rykovanov

2020

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Nonlinear Compton scattering is a promising source of bright gamma-rays. Using readily available intense laser pulses to scatter off the energetic electrons on the one hand allows to significantly increase the total photon yield, but on the other hand leads to a dramatic spectral broadening of fundamental emission line as well as its harmonics due to the laser pulse shape induced ponderomotive effects. In this paper we propose to avoid ponderomotive broadening in harmonics by using the polarization gating technique -a well-known method to construct a laser pulse with temporally varying polarization. We show that by restricting harmonic emission only to the region near the peak of the pulse, where the polarization is linear, it is possible to generate a bright narrow bandwidth comb in the gamma region.

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