Zobrazeno 1 - 10
of 59
pro vyhledávání: '"B.E. Fuentes"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 476:64-67
Relative total ionization cross sections and fragment target ions have been measured for proton impact on CCl4 molecules for the first time, namely associated with the formation of CCl3+, CCl2+, CCl+, Cl2+, Cl+ and C+ ions. The experiment was conduct
Publikováno v:
IEEE Transactions on Plasma Science. 48:173-178
We report in this article the optical emission spectroscopy (OES) measurements for N2O dc discharge in the pressure range between 0.1 and 0.6 mbar. The emission bands were observed and measured in the wavelength range of 200–1100 nm. The intensity
Publikováno v:
IEEE Transactions on Plasma Science. 47:4032-4037
This paper is concerned with the determination of total negative ion number density ( n –) in a dc plasma discharge of N2O employing laser induced photo-detachment coupled with an electrostatic Langmuir probe. Electrons resulting from the photo-det
Publikováno v:
International Journal of Mass Spectrometry. 440:10-13
Measurements were made for the ionization and dissociative ionization of N2O in collisions with 2–10 keV protons. Absolute cross sections were obtained employing the time of flight mass spectroscopy for the slow target molecular ions and ionic frag
Publikováno v:
Physics Procedia. 90:391-398
We have investigated the total relative ionization and dissociative electron capture cross section for proton collisions with CO within the energy range of 2 keV to 10 keV. Time of flight mass spectroscopy was employed in the measurements of CO+, O+
Publikováno v:
International Journal of Mass Spectrometry. 411:21-26
Total ionization and fragmentation cross sections for proton impact on CH4 within the energy range of 2–10 keV have been measured. Present results identify the ionization channel to be the dominant processes. Decay routs leading to the fragments C
Publikováno v:
International Journal of Mass Spectrometry. 405:59-63
Measurements were made for ionization and dissociative ionization cross sections of O 2 and N 2 in collisions with 2–10 keV protons. Cross sections were measured for both target gases employing the time of flight mass spectroscopy for the slow targ
Autor:
Federico Vázquez, F. B. Yousif, Marco Rivera, Jannet Rodriguez Legorreta, B.E. Fuentes, Horacio Martinez Valencia
Publikováno v:
IEEE Transactions on Plasma Science. 44:1150-1154
Negative oxygen ions (O2− + O−) in the bulk of a dc discharge for Ar/O2 gas mixture have been determined employing Langmuir probe-assisted laser photodetachment. Electron density and temperature were obtained for the mixture at discharge powers b
Publikováno v:
International Journal of Hydrogen Energy. 40:4194-4199
In this work a study of the improvement of titanium hydrogenation by low energy ion irradiation is presented. 3 mm titanium slices were irradiated at room temperature with 5 keV H ions and annealed at different temperatures (300, 450 and 600 °C) in
Publikováno v:
Physics Procedia. 66:617-621
A low energy accelerator was constructed in the Faculty of Science of the National Autonomous University of Mexico (UNAM) for atomic and molecular experiments in the energy range 1.0 - 10.0 keV. We present a general description as well as results of