Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Georg Pretzler"'
Publikováno v:
AIP Advances, Vol 14, Iss 8, Pp 085304-085304-7 (2024)
Unconfined high-energy-density laser plasmas are known to emit broadband ion spectra in terms of species and their kinetic energy. The diagnostic of choice is often the Thomson parabola method, which is well-studied for the particle energies in the M
Externí odkaz:
https://doaj.org/article/131239c71e214351b7182c6ff7b1cd71
Autor:
Steffen Mittelmann, Kévin Touchet, Xianglei Mao, Minok Park, Sebastijan Brezinsek, Georg Pretzler, Vassilia Zorba
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Laser-Induced Breakdown Spectroscopy (LIBS) is a promising technology for in-situ analysis of Plasma-Facing Components in magnetic confinement fusion facilities. It is of major interest to monitor the hydrogen isotope retention i.e. tritium
Externí odkaz:
https://doaj.org/article/eb40af2fe99b4ace92aece90e18557fa
Publikováno v:
Applied Physics B. 128
We present a method for determining the temporal and spatial evolution of a gas jet generated by a pulsed nozzle using high-order harmonics of a titanium–sapphire laser. This radiation in the extreme ultraviolet spectral range (17–40 nm) is trans
Publikováno v:
Journal of the Optical Society of America B. 39:677
We present a novel, to the best of our knowledge, design for the spectrally resolved wavefront diagnostics of ultrashort laser pulses. The design uses quasi-self-referenced interferometry (qSRI), is completely achromatic, and avoids dispersion. The q
Publikováno v:
Applied Physics B. 79:923-926
Ultrashort high-energy electron beams are generated by focusing fs Ti:sapphire laser pulses on a thin metal tape at normal incidence. At laser intensities above 1016 W/cm2 , the fs laser plasma ejects copious amounts of electrons in a direction paral
Publikováno v:
Laser and Particle Beams. 22:315-321
The propagation of laser-generated hot electrons through matter and across narrow vacuum gaps is studied. We use the ATLAS titanium-sapphire laser of Max-Planck-Institut fuer Quantenoptik to irradiate 10 {proportional_to}m to 100 {proportional_to}m t
Čerenkov radiation diagnostics of hot electrons generated by fs-laser interaction with solid targets
Publikováno v:
Europhysics Letters (EPL). 61:632-638
A new method of diagnostics of hot electrons from a laser-produced plasma is experimentally demonstrated. Titanium-sapphire laser pulses (1 J/130 fs) irradiate copper foils backed by a dielectric. The energy distribution and direction of the hot elec
Autor:
R. Behrens, Stefan Karsch, Georg Pretzler, Heinrich Schwoerer, R. Sauerbrey, S. Dusterer, P. Ambrosi
Publikováno v:
Review of Scientific Instruments. 74:961-968
A new method was applied to simultaneously measure the absolute energy- and angle-dependent emission of electrons (500 keV to 20 MeV) and photons (50 keV to 2 MeV) emitted by laser-produced plasmas. For this purpose, a newly developed few-channel spe
Publikováno v:
Le Journal de Physique IV. 11:Pr2-217
A 130 fs 200 mJ titanium saphire laser is used to investigate conditions of generating inversion on an innershell transition in cobalt. Using a longitudinal pumping geometry copper K-shell radiation is used to photopump cobalt K α , The amount of ph
Publikováno v:
Laser and Particle Beams. 19:91-97
Characteristic X-rays generated by high-intensity laser interaction with solids were investigated and used for determining the resulting hot electron populations. Spectrally as well as spatially resolved data are evaluated for this purpose. The exper