Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Omer Sise"'
Autor:
Omer Sise, Theo J. M. Zouros
Publikováno v:
Journal of Spectroscopy, Vol 2015 (2015)
Practical analytic equations, for the ideal field, and numerical results from SIMION simulations, for the fringing field, are presented for the exit radius rπ and transit time tπ of electrons in a hemispherical deflector analyzer (HDA) over a wide
Externí odkaz:
https://doaj.org/article/96f9c98a36d74f7188c7ead58b87c57d
Publikováno v:
Journal of Nanoelectronics and Optoelectronics. 17:721-729
Computer-simulated design of electron microscopes and related optical-probe systems is an area of growing importance, because of the actual innovative advances in material science, in particular at the nano and micro structure scales. The numerical m
Autor:
Oday A. Hussein, Omer Sise
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 217:11-15
The imaging properties of an electrostatic quadrupole doublet lens were analyzed with the aid of computer simulation. The optimal electrode voltages which lead to stigmatic image in both planes of the quadrupole doublet lens with minimum spot size at
Autor:
S. Doukas, A. Dimitriou, I. Madesis, M. Axiotis, Omer Sise, A. Lagoyannis, Theo J. M. Zouros, Béla Sulik, E. P. Benis, A. Laoutaris
Publikováno v:
Journal of Atomic, Molecular, Condensate and Nano Physics. 3:121-131
We have recently build a new experimental station with a beam line dedicated to atomic collision physics at the 5 MV TANDEM accelerator of the Institute of Nuclear and Particle Physics at the National Research Center “Demokritos” in Athens, Greec
Autor:
A. Laoutaris, Theo J. M. Zouros, Omer Sise, M. Fernández-Martín, A. Dimitriou, I. Madesis, G. Martínez
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 211:19-31
The methodology and results of a detailed four-element lens optimization analysis based on electron trajectory numerical simulations are presented for a hemispherical deflector analyzer (HDA), whose entry aperture size is determined by the injection
Autor:
Omer Sise
Publikováno v:
Microscopy and Microanalysis. 21:72-77
Autor:
Theo J. M. Zouros, Omer Sise
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 369:95-97
The biased paracentric hemispherical deflection analyzers (HDAs) are an alternative to conventional (centric) HDAs maintaining greater dispersion, lower angular aberrations, and hence better energy resolution without the use of any additional fringin
Autor:
Omer Sise, Oday A. Hussein
The optical properties of an electrostatic quadrupole doublet lens with two different electrode shapes were studied with the aid of computer simulation. The optimal electrode voltages of the electrostatic quadrupole lenses which give the stigmatic im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49276fb7422ef306a3f52f881ad55226
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/93767
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/93767
Autor:
Omer Sise
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 197:7-12
Electron optics is the key to the successful operation of electron collision experiments where well designed electrostatic lenses are needed to drive electron beam before and after the collision. In this work, the imaging properties and aberration an
Autor:
A. Dimitriou, Béla Sulik, S. Harrisopulos, Omer Sise, M. Axiotis, C. Nounis, S. Doukas, T. J. Mertzimekis, Theo J. M. Zouros, I. Madesis, A. Lagoyannis, E. P. Benis, A. Laoutaris
Publikováno v:
HNPS Proceedings. 23:65
University of Crete (UoC) has initiated the research initiative APAPES funded by THALES ‡ that has already set up a new experimental station with a beam line dedicated solely on basic atomic physics research. This new experiment utilizing Zero-degr