Zobrazeno 1 - 10
of 43
pro vyhledávání: '"S.G. Zakhary"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 457:37-43
Poly allyl diglycol carbonate (CR-39) solid-state nuclear track detector is irradiated by a low-energy electron beam, and the decomposition of the irradiated samples is inspected with various techniques. The CR-39 viscosity is tested and showed that
Publikováno v:
Radiation Physics and Chemistry. 147:106-113
In the present study, electron beam (EB) is utilized to tailor the surface structure and wetting behavior of ethylene-vinyl alcohol (EVOH) copolymer. The structural deformation is examined by x-ray diffractometer (XRD). The recorded patterns reveal t
Publikováno v:
Radiation Physics and Chemistry. 102:96-102
The semi-crystalline poly (ethylene terephthalate) PET film was treated by low energy electrons with different fluences and the surface wettability modification is investigated. Contact angle technique is employed to prove PET surface wettability enh
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 322:48-53
In this article, a comparative study has been made to evaluate the adhesion properties of poly (ethylene terephthalate) film irradiated with electron beam. The wetting behavior of the treated polymer surface is studied by employing the contact angle
Autor:
S.G. Zakhary, M.E. Abdelaziz
Publikováno v:
Proceedings of the Sixteenth National Radio Science Conference. NRSC'99 (IEEE Cat. No.99EX249).
In this paper a review is made of the main developments of RF ion sources. These developments are directed towards intensifying the plasma, improving the ion beam quality and increasing the extent of the highly charged ion species in the ion beam. In
Publikováno v:
Proceedings of 17th International Symposium on Discharges and Electrical Insulation in Vacuum.
The project starts with the design of the broad beam RF ion source and the single gap accelerating column. The preliminary results of the source show that the ion current extracted from the source could reach /spl sime/30 mA with extraction voltage /
Publikováno v:
Thirteenth National Radio Science Conference. NRSC '96.
A new design of a broad beam RF ion source is made to deliver currents of 100 /spl mu/A up to 30 mA with extraction voltages 200 V up to 2 kV. Its plasma intensifying system is made with both addition of electrons from an immersed filament in the dis
Autor:
S.G. Zakhary
Publikováno v:
Thirteenth National Radio Science Conference. NRSC '96.
The motion of charged particle in a crossed RF field and DC magnetic field describes the occurrence of resonance (increase of the energy gained by the particle between collisions) which causes low breakdown voltage, higher plasma intensity, and highe
Autor:
S.G. Zakhary, M.S. Ragheb
Publikováno v:
Proceedings of the Fifteenth National Radio Science Conference. NRSC '98 (Cat. No.98EX109).
In this work a study is made of the factors affecting the electron gun design and the diagnostics of the beam extracted from the gun. The use of both Pierce and shaping electrodes is necessary in order to produce thin intense beams. A theoretical stu
Autor:
M.E. Abdelaziz, S.G. Zakhary
Publikováno v:
IEEE Conference Record - Abstracts. 1991 IEEE International Conference on Plasma Science.