Zobrazeno 1 - 10
of 109
pro vyhledávání: '"A. H. Farahbod"'
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025054-025054-8 (2023)
The optical pumping of laser-induced copper plasma by incoherent light of a fast-discharge xenon flashlamp is proposed to enhance the stimulated emission of the laser-induced plasma (LIP). To study the spatiotemporal evolution of the incoherent pumpi
Externí odkaz:
https://doaj.org/article/8b3e87f529424f738827178f5125f07e
Publikováno v:
مجله علوم و فنون هستهای, Vol 42, Iss 2, Pp 78-87 (2021)
Laser produced plasma can be used as the sources of soft X-ray laser. The ability to control the laser quality and its gain coefficient by controlling laser and plasma’s parameters is one of the advantages of this method. In this study, a pump puls
Externí odkaz:
https://doaj.org/article/4afd7cc482064424873b240a5d4f177d
Autor:
N Morshedian, A H Farahbod
Publikováno v:
Iranian Journal of Physics Research, Vol 19, Iss 4, Pp 825-830 (2020)
Using AXUV (absolute extreme ultraviolet) photodiode, experimental results obtained for soft X-ray and EUV emission are presented. Plasma produced by nanosecond laser pulse laser system is applied with maximum energy of 250 mJ, pulse durations, 10-30
Externí odkaz:
https://doaj.org/article/7bc41c26c6cc4021b0aa5ed9e909d738
Publikováno v:
Iranian Journal of Physics Research, Vol 18, Iss 3, Pp 477-484 (2018)
The experimental study of passively Q-switched, LED-pumped Ce:Nd:YAG laser is reported. The active medium is a 3 mm diameter laser rod with 60 mm length; it is optically pumped with four segments of blue LEDs at 460 nm, with each segment consisting o
Externí odkaz:
https://doaj.org/article/3ad390e891f84e4184972f98a00e948a
Autor:
S. A Ghasemi, A. H Farahbod
Publikováno v:
مجله علوم و فنون هستهای, Vol 39, Iss 3, Pp 103-112 (2018)
The stopping power, penetration and scattering of high energy electrons with different energy distribution functions into dense fuel and hot-spot (fuel core) have been considered for a fast-shock ignition scenario. The analytical calculations indicat
Externí odkaz:
https://doaj.org/article/2ba16ee1f16c498ebbba337a7fd8ccda
Publikováno v:
Iranian Journal of Physics Research, Vol 16, Iss 4, Pp 345-350 (2017)
In this paper, semi-analytical relations of total energy, fuel gain and hot-spot radius in a non-isobaric model have been derived and compared with Schmitt (2010) numerical calculations for shock ignition scenario. in nuclear fusion. Results indicate
Externí odkaz:
https://doaj.org/article/30420382fc014a3daa8c28188a2bd76a
Publikováno v:
Chinese Journal of Physics. 78:471-484
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2108ecb68563c40812410bbdc01e6eae
https://doi.org/10.1016/j.cjph.2022.07.018
https://doi.org/10.1016/j.cjph.2022.07.018
Characterization and comparison of laser induced plasma parameters by Langmuir probe at low pressure
Publikováno v:
Iranian Journal of Physics Research, Vol 15, Iss 1, Pp 25-32 (2015)
In this paper, the electron temperature and ion density of laser-produced plasma in nanosecond regime in different pressure of ambient gas have been studied by using single Langmuir probe. Using the current-voltage characteristics curve of probe, the
Externí odkaz:
https://doaj.org/article/cbdab90795b44438b0fe4c8deab5a31e
Publikováno v:
Iranian Journal of Physics Research, Vol 15, Iss 1, Pp 71-79 (2015)
In this paper, the spectral behavior of a two-cell phase conjugated mirror (PCM)with a two-pass Nd:YAG amplifier has been analyzed experimentally and theoretically. For this purpose, amplifier input intensity for the three different states of laser o
Externí odkaz:
https://doaj.org/article/d0de6964742846d9b3e6fa87037ca822
Autor:
S. A. Ghasemi, A. H. Farahbod
Publikováno v:
Iranian Journal of Physics Research, Vol 13, Iss 4, Pp 397-403 (2014)
This paper deals with the role of fast ignitor in fast-shock ignition (FSI) concept. The semi-analytical model indicates that the FSI target gain is a function of fast ignitor laser wavelength. If the energy of fast ignitor driver is and the laser wa
Externí odkaz:
https://doaj.org/article/bbfb2f042f3d4476abd122404777bea2