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Showing 1 to 20 of 28 for “"secondary electron emission"”.

  1. Secondary Electron Emission of Liquid Insulators

    Erin, TimUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-08T22:24:45Z (GMT). No. of bitstreams: 1 7013299.pdf: 2113801 bytes, checksum: 73ae609c90132eab607f6518c534e29f (MD5) Previous issue date: 1969

    uiuc Repository record

  2. The Time Dispersion of Secondary Electron Emission

    Ernst, Edward WillisUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-04T21:02:43Z (GMT). No. of bitstreams: 1 0011504.pdf: 4327321 bytes, checksum: 243e5582e982761d86a45d5e21eb4e49 (MD5) Previous issue date: 1955

    uiuc Repository record

  3. Encapsulated source contact dose estimates incorporating secondary electron emission

    Cleary, JamesUniversity of Ontario Institute of Technology2015

    Secondary electron emission generated at the surface of thin material from interaction with gamma rays form a significant component of the surface dose. The intensity of this emission is known to vary with material composition and incident radiation energies. The goal of this research effort is to …

    uoit Repository record

  4. The Role of Bandgap in the Secondary Electron Emission of Small Bandgap Semiconductors: Studies of Graphitic Carbon

    Nickles, Neal E.

    utahstate Repository record

  5. Interaction cross sections needed for simulation of secondary electron emission spectra from thin metal foils after fast proton impact

    Travia, AndersonEast Carolina University2009

    Monte Carlo simulations of secondary electron emission from thin metal foils after fast proton impact require reliable interaction cross sections with the target under consideration. Total and energy differential inelastic cross sections have been derived for aluminum, copper, and gold thin-metal …

    ecu Repository record

  6. A Study of High Energy-Resolution and at Low Primary Energies of the Secondary Electron Emission From (100) Tungsten

    Piper, Thomas ClaytonUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T21:41:39Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6706698.PDF: 3471754 bytes, checksum: 55771bb48e63d8dd7ed8d16ef08a4168 (MD5) Previous issue date: 1966

    uiuc Repository record

  7. Anode Materials for High Power Microwave Devices

    Gortat, Daniel PiotrUniversity of Cambridge2020

    … HPMs can significantly upset or even destroy electronic devices within military and commercial systems prompting applications for nonlethal directed energy weaponry. Cathodes and anodes are the two critical components and the engine of the HPM which makes this application possible. The decay …

    cambridge Repository record

  8. Radio frequency driven direct current electron beam source

    Shaw, Denis M., author, Collins, George, advisorColorado State University. Libraries2007

    A new type of electron beam source employing ion-induced secondary electron emission from cold cathodes is developed for feature charge neutralization during plasma etching. A low pressure (approximately 2 – 20 mTorr) inductively coupled plasma provides ions which impinge on a high secondary …

    colostate Repository record

  9. Observation of plasma sheath modulation in the plasma bipolar junction transistor

    Houlahan, ThomasUniversity of Illinois at Urbana-Champaign2012

    … model developed herein, a 359% increase in the secondary electron emission coefficient of the exposed silicon surface is inferred. Additionally, the pressure dependence of these devices is explored, with the data suggesting that smaller devices would exhibit both faster switching and higher …

    uiuc Repository record

  10. Emitting Wall Boundary Conditions in Continuum Kinetic Simulations: Unlocking the Effects of Energy-Dependent Material Emission on the Plasma Sheath

    Bradshaw, Kolter AustenVirginia Tech2024

    … the plasma sheath forms and regulates the electron and ion fluxes into the material. Emission from the material has the potential to change sheath structure drastically, and must be modeled rigorously to produce accurate predictions of the fluxes into the wall. Continuum kinetic codes offer …

    vt Repository record

  11. Ion flux maps and helicon source efficiency in the VASIMR VX-100 experiment using a moving Langmuir probe array

    Olsen, Christopher ScottRice University2009

    … to pulse in an effort to find optimal settings. Secondary electron emission was found to be an important factor that artificially enhanced the measured flux at large negative bias voltages. The most accurate bias voltages were found to be around -20 volts where the flux enhancing effects were …

    rice Repository record

  12. Monte Carlo Simulations of Electron Transport in 3D Solids and Molecular Dynamics Simulations of the Mechanics of 2D materials

    Azzolini, MartinaUniversità degli studi di Trento2019

    The aim of this thesis is the study of electronic transport and mechanical properties of materials using computer simulations. In particular, we dealt with the charge transport in semiconduc- tor and metallic samples and with the peeling of a graphene layer from bulk graphite. The computational …

    trento Repository record

  13. BEAMED: A Bench for Automated Measurements of Electrical Discharges - A New Standard for Paschen Curves

    Nelson, Jared2024

    … environmental science, affecting systems such as electronics, power grids, and atmospheric phenomena. Despite extensive studies and applications of Paschen's law, current methodologies for experimental Paschen tests in direct current (DC) conditions lack standardized practices. This thesis …

    embry-riddle Repository record

  14. Computer simulation of electron transport in solids with applications to materials analysis and characterization

    Dapor, MaurizioUniversità degli studi di Trento2013

    … the MC strategies concerns the study of the electron-solid interaction (transport MC). Transport MC allows predicting the behavior of charged particles traveling through the matter and it has been widely utilized in many applications. Among them, on the side of the chemical analysis of the …

    trento Repository record

  15. ΘΕΩΡΗΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ ΗΛΕΚΤΡΙΚΗΣ ΕΚΚΕΝΩΣΗΣ ΣΕ ΜΙΚΡΑ ΔΙΑΚΕΝΑ

    Manasis, Christos, Μανασής, ΧρήστοςUniversity of Patras1991

    … THE EVOLUTION OF POSITIVE AND NEGATIVE IONS AND ELECTRONS ISDESCRIBED BY ONE-DIMENSIONAL CONTINUITY EQUATION IN CONJUCTION WITH THE POISSON'S EQUATIONS WHICH ARE RESOLVED BY AN ACCURATE NUMERICAL METHOD. THE EFFECTS OF IONIZATION, RECOMBINATION, ATTACHMENT AND ION SECONDARY-ELECTRON EMISSION FROM …

    greece Repository record

  16. Charging of aggregate grains in astrophysical environments.

    Ma, Qianyu.Baylor University.2011

    … due to the constant collisions with free moving electrons and ions. Cosmic dust can also be charged by other means such as UV and X-ray radiation, and secondary electron emission due to the impact of energetic electrons and ions. The presence of charged dust particles alters the properties of the …

    baylor Repository record

  17. PIC simulation of a ceramic-lined Hall-effect thruster

    Blateau, Vincent, 1979-Massachusetts Institute of Technology2002

    … code treats single and double ions, neutrals and electrons as particles, moved forward by a leapfrog algorithm at each timestep, matching the lowest of the plasma and the cyclotron times. At the end of each timestep, a successive-over-relaxation algorithm solves the Gauss' formulation of the …

    mit Repository record

  18. Ferromagnetism of novel ultrathin films and multilayers: A study of Ru/C(0001) and Fe/Mn/Fe/Pd(100) using magneto-optic Kerr effect and spin-sensitive electron spectroscopies

    Steierl, Gerold JosefRice University1997

    … on the C(0001) graphite surface is studied using electron induced spin-polarized secondary electron emission (SPSEE). Below a surface Curie temperature of approximately 250K we find ferromagnetic order of the Ru monolayer. The growth mode of Ru on C(0001) is investigated by Auger electron …

    rice Repository record

  19. Studies of coaxial multipactor in the presence of a magnetic field

    Becerra, Gabriel E. (Becerra Toledo)Massachusetts Institute of Technology2007

    Multipactor discharges consists of electron multiplication between two surfaces by secondary electron emission in resonance with an alternating electric field. They are detrimental to the performance of radio frequency (RF) systems, such as the ICRF (ion cyclotron range of frequencies) antennas for …

    mit Repository record

  20. Immersed Finite Element Particle-In-Cell Modeling of Surface Charging in Rarefied Plasmas

    Wang, PuVirginia Tech2010

    … in dusty plasma. The second one concerns a secondary electron emission experiment. The simulation includes detailed experimental setup in a vacuum chamber and the results are compared against experimental data. The simulation is used to determine the facility error in experiments. The third …

    vt Repository record

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