Персона:
Бухарский, Николай Дмитриевич

Profile Picture
Email Address
Birth Date
Научные группы
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Статус
Фамилия
Бухарский
Имя
Николай Дмитриевич
Имя

Фильтры

2020 - 20243
3
Сброс фильтров

Настройки

Автор: Bukharskii, N. D. × Имеет файлы: Yes ×

Результаты поиска

Теперь показываю 1 - 3 из 3
  • Уменьшенное изображение
    Публикация
    Открытый доступ
    Characterization of bright betatron radiation generated by direct laser acceleration of electrons in plasma of near critical density
    (2024) Cikhardt, J.; Gyrdymov, M.; Zähter, S.; Bukharskii, N. D.; Бухарский, Николай Дмитриевич
    Directed x-rays produced in the interaction of sub-picosecond laser pulses of moderate relativistic intensity with plasma of near-critical density are investigated. Synchrotron-like (betatron) radiation occurs in the process of direct laser acceleration (DLA) of electrons in a relativistic laser channel when the electrons undergo transverse betatron oscillations in self-generated quasi-static electric and magnetic fields. In an experiment at the PHELIX laser system, high-current directed beams of DLA electrons with a mean energy ten times higher than the ponderomotive potential and maximum energy up to 100 MeV were measured at 1019 W/cm2 laser intensity. The spectrum of directed x-rays in the range of 5ў??60 keV was evaluated using two sets of Ross filters placed at 0‚ш and 10‚ш to the laser pulse propagation axis. The differential x-ray absorption method allowed for absolute measurements of the angular-dependent photon fluence. We report 1013 photons/sr with energies andamp;gt;5 keV measured at 0‚ш to the laser axis and a brilliance of 1021 photons sў??1 mmў??2 mradў??2 (0.1%BW)ў??1. The angular distribution of the emission has an FWHM of 14‚шў??16‚ш. Thanks to the ultra-high photon fluence, point-like radiation source, and ultra-short emission time, DLA-based keV backlighters are promising for various applications in high-energy-density research with kilojoule petawatt-class laser facilities.
  • Уменьшенное изображение
    Публикация
    Открытый доступ
    Restoration of the focal parameters for an extreme-power laser pulse with ponderomotively scattered proton spectra by using a neural network algorithm
    (2023) Bukharskii, N. D.; Vais, O. E.; Korneev, P. A.; Bychenkov, V. Yu.; Бухарский, Николай Дмитриевич; Корнеев, Филипп Александрович
  • Уменьшенное изображение
    Публикация
    Открытый доступ
    On the proton radiography of magnetic fields in targets irradiated by intense picosecond laser pulses
    (2020) Ehret, M.; Santos, J. J.; Zielbauer, B.; Abe, Y.; Bukharskii, N. D.; Kochetkov, Y. V.; Gubskiy, K. L.; Kuznetsov, A. P.; Korneev, P. A.; Бухарский, Николай Дмитриевич; Кочетков, Юрий Владимирович; Губский, Константин Леонидович; Кузнецов, Андрей Петрович; Корнеев, Филипп Александрович
    © Published under licence by IOP Publishing Ltd.Proton radiography is a common diagnostic technique in laser-driven magnetic field generation studies. It is based on measuring proton beam deflection in electromagnetic fields induced around the target with the help of radiochromic film stacks. Unraveling information recorded in experimental radiographs and extracting the field profiles is not always a straightforward task. In this paper, some aspects of data analysis by reproducing experimental radiographs in numerical simulations are described. The approach allows determining the field strength and structure in the target area for various target geometries.