Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Ákos Kövér"'
Autor:
Róbert Balog, Ákos Kövér, P. Herczku, Dávid Hatvani, S. Ricz, Sándor Zsolt Kovács, T. Buhr, Levente Ábrók
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 369:24-28
A special electrostatic electron spectrometer designed for precise and unique experiments and an intensity calibration method for universal application in electron spectroscopy are presented. The upgrade of the analyzer enables the intensity calibrat
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 266:466-470
Detailed measurements of the cross-section for non-dissociative ionization Of CO2 are presented and compared with available experimental and theoretical results. An excellent agreement is found with the energy dependence of another experimental deter
Autor:
K. Holste, Alfred Müller, T. Buhr, Ákos Kövér, Stefan Schippers, Dezső Varga, S. Ricz, Alexander Borovik
Publikováno v:
Physical review / A 90(1), 013410 (2014). doi:10.1103/PhysRevA.90.013410
Single ionization of noble-gas atoms by linearly polarized synchrotron radiation has been studied by employing angle- and energy-resolved photoelectron spectroscopy. The measurements were carried out in the plane defined by the momentum and polarizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fe284135b91a14ce808a3a1cf336547
https://bib-pubdb1.desy.de/record/206265
https://bib-pubdb1.desy.de/record/206265
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 34:4901-4917
Cusp-electron emission in He2+ on He collisions has been investigated in the energy range 100-300 keV. By detecting the electrons in coincidence with the charge-state-analysed outgoing He2+ and He+ ions, the processes of electron capture to the conti
Autor:
Ákos Kövér, K. Tökesi
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 33:3067-3077
A three-body classical trajectory Monte Carlo method is used to calculate the ionization cross sections for 54.4 eV positron-argon atom collisions. Results for single-, double- and triple-differential cross sections are presented for ionized electron
Autor:
K. Tőkési, Ákos Kövér
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 154:259-262
A three-body classical trajectory Monte Carlo (CTMC) method is used to describe the ionization cross sections in positron–argon collisions. The existence of the cusp-like peak at positron impact is shown.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 154:267-271
The proton excited carbon and oxygen K–LL Auger spectra of carbon dioxide were measured using the high-resolution, angular resolving ESA-21 electron spectrometer. The proton impact energy was 1.0 MeV. The transition energies of both K–LL Auger-sp
Autor:
D. Berenyi, Ákos Kövér, Béla Sulik, K. Tőkési, S. Ricz, J. Y. Chesnel, Gy. Vikor, Nikolaus Stolterfoht, Cs. Koncz
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 154:281-285
Electron spectra in the 20–550 eV energy range and in the full angular range of 0–180° were measured by the impact of 150 keV/u C+ ions on He, Ne and Ar atoms. Double differential cross sections for electron emission have been determined. We obs
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 143:184-187
The details of an electrostatic beam, designed for investigating positron–atom (molecule) scattering processes, are presented. The performance of the system has been tested by measuring differential elastic e + –Ar scattering cross sections. The
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 30:4339-4346
The influence of the post-collision Coulomb effect of direct-electrons on the Auger-line energy shift has been studied in fast proton - atom collisions. KLL and LMM Auger spectra of neon and krypton target have been measured and analysed with high pr