Zobrazeno 1 - 10
of 77
pro vyhledávání: '"F. B. Yousif"'
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81c4999ae3aba94af66a798321d94a12
https://doi.org/10.1016/j.nimb.2020.05.009
https://doi.org/10.1016/j.nimb.2020.05.009
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6a6a4bdf93733b59239e7da39c9c40a
https://doi.org/10.1109/tps.2019.2958990
https://doi.org/10.1109/tps.2019.2958990
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5ab80c7fbe29080c75dba1d3dd037d7
https://doi.org/10.1109/tps.2019.2923894
https://doi.org/10.1109/tps.2019.2923894
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6345f34cea7a50b4ccdb67ac00582025
https://doi.org/10.1016/j.ijms.2019.02.002
https://doi.org/10.1016/j.ijms.2019.02.002
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+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85311d81be0dcd736daf1f806b341285
https://doi.org/10.1016/j.phpro.2017.10.001
https://doi.org/10.1016/j.phpro.2017.10.001
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4e06b29ef807b7648d4114a98a9d42d
https://doi.org/10.1016/j.ijms.2016.11.002
https://doi.org/10.1016/j.ijms.2016.11.002
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09168f14a946302888629527c48d1fc3
https://doi.org/10.1016/j.ijms.2016.05.014
https://doi.org/10.1016/j.ijms.2016.05.014
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f8d89e0469a9b2b90a0e4cc6e1ca3f5
https://doi.org/10.1109/tps.2016.2578880
https://doi.org/10.1109/tps.2016.2578880
Autor:
Horacio Martinez, Josefina Vergara-Sánchez, Victor Contreras, Carmen Cisneros, Pedro Reyes, F. B. Yousif
Publikováno v:
Physics of Plasmas. 27:083501
We present a detailed Langmuir probe, optical emission spectroscopy (OES), and quadrupole mass spectrometry (QMS) characterization of a DC CO2–H2 plasma mixture, complemented by calculations of the electron energy distribution functions (EEDFs) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99b7d8e754f8c4db901dfad76d8e3962
https://doi.org/10.1063/5.0010266
https://doi.org/10.1063/5.0010266
Publikováno v:
International Journal of Mass Spectrometry. 446:116214
We have investigated the total relative ionization and dissociative electron capture cross section for proton collisions with water-vapor molecules within the energy range of 2.5–10 keV. Time of flight mass spectroscopy was employed in the measurem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59d95a6ec75cf1fbba624c89cea930ad
https://doi.org/10.1016/j.ijms.2019.116214
https://doi.org/10.1016/j.ijms.2019.116214