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searching for Space charge 112 found (177 total)

Depletion region (2,446 words) [view diff] exact match in snippet view article find links to article

called depletion layer, depletion zone, junction region, space charge region, or space charge layer, is an insulating region within a conductive, doped

P–n junction (2,643 words) [view diff] exact match in snippet view article find links to article

mobile carriers, forming the space charge region or depletion layer (see figure A). The electric field created by the space charge region opposes the diffusion

Deep-level transient spectroscopy (2,025 words) [view diff] exact match in snippet view article find links to article

identifications and analysis. DLTS investigates defects present in a space charge (depletion) region of a simple electronic device. The most commonly used

Debye sheath (1,995 words) [view diff] no match in snippet view article find links to article

it independently and published in 1913. It was first used to give the space-charge-limited current in a vacuum diode with electrode spacing d. It can also

Migma (2,410 words) [view diff] exact match in snippet view article find links to article

How the space charge limit was exceeded", of the above named article, covers the theory and experimental of a novel method for space charge neutralization

Kurt Lehovec (404 words) [view diff] no match in snippet view article find links to article

one in a surface space-charge layer of ionic crystals. Such conduction was first predicted by K. Lehovec in the paper "Space-charge layer and distribution

Nanoionics (1,800 words) [view diff] no match in snippet view article find links to article

concentrations of charged defects (vacancies and interstitials) in a disordered space-charge layer. But in nanoionics-II, it is necessary to conserve the original

Photoemission spectroscopy (1,214 words) [view diff] exact match in snippet view article find links to article

compared to UPS, the ejected electrons are faster, resulting in less space charge and mitigated final state effects. The physics behind the PES technique

Electrodynamic tether (9,475 words) [view diff] exact match in snippet view article find links to article

bias due to the self repulsion of the electron beam. This classical 1-D space charge limit (SCL) is derived for charged particles of zero initial energy,

Fast-ion conductor (1,284 words) [view diff] no match in snippet view article find links to article

is one in a surface space-charge layer of ionic crystals. Such conduction was first predicted by Kurt Lehovec. As a space-charge layer has nanometer thickness

Theory of solar cells (4,547 words) [view diff] exact match in snippet view article find links to article

practically no mobile charge carriers. It is also known as the space charge region, although space charge extends a bit further in both directions than the depletion

Photorefractive effect (656 words) [view diff] exact match in snippet view article find links to article

field, known as a space charge field to be set up in the crystal. Since the electrons and holes are trapped and immobile, the space charge field persists

Accelerator physics codes (1,846 words) [view diff] exact match in snippet view article find links to article

using particle-in-cell algorithms. Space charge effects lessen at higher energies so at higher energies the space charge effects may be modeled using simpler

Landau damping (2,231 words) [view diff] exact match in snippet view article find links to article

damping (exponential decrease as a function of time) of longitudinal space charge waves in plasma or a similar environment. This phenomenon prevents an

Electrostatic precipitator (4,263 words) [view diff] exact match in snippet view article find links to article

3 conditioning. The remainder recombines with ammonia to add to the space charge as well as increase cohesiveness of the ash. More recently, it has been

Ion beam lithography (503 words) [view diff] exact match in snippet view article find links to article

higher particle energy for a given range and the absence of significant space charge effects, shot noise will tend to be greater. Fast-moving ions interact

Power MOSFET (4,774 words) [view diff] no match in snippet view article find links to article

substrate). When this highly non-symmetrical structure is reverse-biased, the space-charge region extends principally on the light-doped side, i.e., over the N−

Raether limit (159 words) [view diff] exact match in snippet view article find links to article

ionization. Heinz Raether postulated that this was due to the effect of the space charge on the electric field. The multiplication factor or gas gain is of fundamental

Liouville–Bratu–Gelfand equation (920 words) [view diff] exact match in snippet view article find links to article

example, Emden–Chandrasekhar equation. This equation also describes space charge of electricity around a glowing wire and describes planetary nebula.

Glow discharge (2,855 words) [view diff] exact match in snippet view article find links to article

shortens with increased gas pressure. The cathode layer has a positive space charge and a strong electric field. Electrons leave the cathode with an energy

Reciprocity (optoelectronic) (1,831 words) [view diff] exact match in snippet view article

x_{j}} defines the position of the edge of the space charge region (where the neutral zone and the space charge region connect). Thus, if x=xj{\displaystyle

Noise generator (1,015 words) [view diff] exact match in snippet view article find links to article

the filament. If the plate voltage were too low, then there would be space charge near the filament that would affect the noise output. For a calibrated

Ion trap (2,604 words) [view diff] case mismatch in snippet view article find links to article

PMID 15389865. Kingdon KH (1923). "A Method for the Neutralization of Electron Space Charge by Positive Ionization at Very Low Gas Pressures". Physical Review. 21

Metal–semiconductor junction (2,182 words) [view diff] exact match in snippet view article find links to article

currents of the majority carriers through the semiconductor surface space charge layer which has been known since about 1948 as the Mott barrier. Walter

Scherzer's theorem (454 words) [view diff] exact match in snippet view article find links to article

summarized: "Chromatic and spherical aberration are unavoidable errors of the space charge-free electron lens. In principle, distortion (strain and twist) and (all

Wolfgang Helfrich (289 words) [view diff] no match in snippet view article find links to article

und volumenbestimmte Ströme in organischen Festkörpern - Munich 1967 Space-charge-limited and volume-controlled currents in organic solid - Munich 1967

Silver bromide (1,960 words) [view diff] no match in snippet view article find links to article

that its concentration in the layer below the grain surface (called the space-charge layer) far exceeds that of the intrinsic bulk. The formation energy of

Plasma (physics) (6,356 words) [view diff] exact match in snippet view article

contains ions and electrons in about equal numbers so that the resultant space charge is very small. We shall use the name plasma to describe this region containing

Inductive output tube (1,363 words) [view diff] exact match in snippet view article find links to article

extracted by a coaxial transmission line. An axial magnetic field prevents space charge spreading of the beam. The collector electrode is at a lower potential

Early effect (2,064 words) [view diff] exact match in snippet view article find links to article

Negligible recombination-generation in space charge regions Negligible electric fields outside of space charge regions. It is important to characterize

Avalanche photodiode (1,415 words) [view diff] no match in snippet view article find links to article

{\displaystyle M={\frac {1}{1-\int _{0}^{L}\alpha (x)\,dx}},} where L is the space-charge boundary for electrons, and α{\displaystyle \alpha } is the multiplication

Orbitrap (1,938 words) [view diff] case mismatch in snippet view article find links to article

PMID 15838939. Kingdon KH (1923). "A Method for the Neutralization of Electron Space Charge by Positive Ionization at Very Low Gas Pressures". Physical Review. 21

Cold cathode (1,507 words) [view diff] exact match in snippet view article find links to article

with some mechanism for limiting current. Although creating the initial space charge and the first arc of current through the tube may require a very high

Organic semiconductor (2,736 words) [view diff] exact match in snippet view article find links to article

Other ways to determine the charge carrier mobility involves measuring space charge limited current (SCLC) flow and "carrier extraction by linearly increasing

Microchannel plate detector (2,063 words) [view diff] exact match in snippet view article find links to article

means that the MCP and the preamplifier are used in the linear region (space charge negligible) and the pulse shape is assumed to be due to an impulse response

Roy W. Gould (438 words) [view diff] case mismatch in snippet view article find links to article

Institute of Technology Archives. Trivelpiece, A. W.; Gould, R. W. (1959). "Space Charge Waves in Cylindrical Plasma Columns" (PDF). Journal of Applied Physics

Inertial electrostatic confinement (6,674 words) [view diff] exact match in snippet view article find links to article

orbits that do not intersect grid wires—the latter also improves the space charge limitations by multiple nesting of ion beams at several energies. Researchers

Ion wind (757 words) [view diff] exact match in snippet view article find links to article

rotating pinwheel arm with ends bent to sharp points gives the air a space charge, which repels the point because the polarity is the same for the point

Heterojunction (2,580 words) [view diff] no match in snippet view article find links to article

466C. doi:10.1103/PhysRev.150.466. Bendaniel, D.; Duke, C. (1966). "Space-Charge Effects on Electron Tunneling". Physical Review. 152 (2): 683. Bibcode:1966PhRv

Flat band potential (659 words) [view diff] exact match in snippet view article find links to article

flat band potential can be found in the determining the width of the space charge region in a semiconductor-electrolyte junction. Furthermore, it is used

Doping (semiconductor) (4,480 words) [view diff] exact match in snippet view article

conduction band; as the acceptor level in n-type silicon is shallower, the space charge generation rate is lower and therefore the leakage current is also lower

Holographic data storage (2,372 words) [view diff] exact match in snippet view article find links to article

the dark areas and recombined with holes there, there is a permanent space charge field between the electrons that moved to the dark spots and the holes

James M. Early (338 words) [view diff] no match in snippet view article find links to article

Health Care System in Palo Alto, California. J.M. Early, "Effects of space-charge layer widening in junction transistors", Proc. IRE, vol. 40, pp. 1401-1406

Backward-wave oscillator (2,547 words) [view diff] exact match in snippet view article find links to article

where the wave propagating on the circuit is synchronous with the slow space charge wave of the beam. Inherently the BWO is more sensitive than other oscillators

Electrometer (2,162 words) [view diff] no match in snippet view article find links to article

reversed. This places the control electrode at a maximum distance from the space-charge region surrounding the filament, minimizing the number of electrons collected

Gas focusing (113 words) [view diff] no match in snippet view article find links to article

27 690-697 Mladenov G., and Sabchevski S., Potential distribution and space-charge neutralization in intense electron beams - an overview "Vacuum", 2001

Ultrafast electron diffraction (1,124 words) [view diff] no match in snippet view article find links to article

duration below a picosecond proved extremely difficult due to space-charge effects. Space-charge interactions increase in severity with bunch charge and rapidly

X-ray lithography (1,623 words) [view diff] exact match in snippet view article find links to article

irradiation. Insulating films are eventually neutralized locally by space charge (electrons entering and exiting the surface) at the resist-vacuum interface

Bipolar junction transistor (6,682 words) [view diff] exact match in snippet view article find links to article

(6th ed.). p. 12. Bibcode:1964trma.book.....C. "If the principle of space charge neutrality is used in the analysis of the transistor, it is evident that

Peter T. Kirstein (1,570 words) [view diff] no match in snippet view article find links to article

Institutions CERN General Electric University College London Thesis Curvilinear space-charge flow with applications to electron guns (1957) Doctoral advisor Gordon

Mass spectrometry (10,342 words) [view diff] no match in snippet view article find links to article

S2CID 20236081. Parkins WE (2005). "The uranium bomb, the calutron, and the space-charge problem". Physics Today. 58 (5): 45–51. Bibcode:2005PhT....58e..45P.

Caesium (9,727 words) [view diff] exact match in snippet view article find links to article

In the two-electrode vacuum tube converter, caesium neutralizes the space charge near the cathode and enhances the current flow. Caesium is also important

Atmosphere-breathing electric propulsion (1,509 words) [view diff] exact match in snippet view article find links to article

doi:10.1016/j.actaastro.2018.03.031. hdl:2117/116081. S2CID 116462856. "Space charge", Wikipedia, 11 September 2023, retrieved 27 October 2023 Conley, Buford

Michael L. Gross (chemist) (1,253 words) [view diff] case mismatch in snippet view article

PMID 4037318. Gross, Michael L; E.B. Ledford Jr; D.L. Rempel (1984). "Space Charge Effects in Fourier Transform Mass Spectrometry.II". Analytical Chemistry

Schottky barrier (2,033 words) [view diff] exact match in snippet view article find links to article

of the Schottky barrier, dopants remain ionized and give rise to a "space charge" which in turn give rise to a capacitance of the junction. The metal–semiconductor

William Shockley (6,813 words) [view diff] no match in snippet view article find links to article

ISSN 0005-8580. Sze, S. M.; Shockley, W. (May 6, 1967). "Unit-Cube Expression for Space-Charge Resistance". Bell System Technical Journal. 46 (5). Institute of Electrical

William Shockley (6,813 words) [view diff] no match in snippet view article find links to article

ISSN 0005-8580. Sze, S. M.; Shockley, W. (May 6, 1967). "Unit-Cube Expression for Space-Charge Resistance". Bell System Technical Journal. 46 (5). Institute of Electrical

Franck–Hertz experiment (3,779 words) [view diff] no match in snippet view article find links to article

tubes that don't contain mercury vapor; larger voltages lead to larger "space-charge limited current". At 4.9 volts the current drops sharply, almost back

Electrospray (1,923 words) [view diff] no match in snippet view article find links to article

breaks into small charged droplets, which are radially dispersed by the space-charge. The charged liquid is ejected through the cone apex and captured on

Plasma acceleration (3,338 words) [view diff] no match in snippet view article find links to article

accelerator thereby phase-locks a particle bunch on a wave and this loaded space-charge wave accelerates them to higher velocities while retaining the bunch

David Finkelstein (1,040 words) [view diff] exact match in snippet view article find links to article

Maisonnier, David Ritz Finkelstein: Beam intensity limitation in neutralized space charge betatrons, CERN, 1959 David Ritz Finkelstein: Non-linear meson theory

Fusor (5,403 words) [view diff] exact match in snippet view article find links to article

October 1967 Irving Langmuir, Katharine B. Blodgett, "Currents limited by space charge between concentric spheres" Physical Review, vol. 24, No. 1, pp49–59

Hans Tropper (795 words) [view diff] exact match in snippet view article find links to article

1993). "Electrohydrodynamic instability and motion induced by injected space charge in insulating liquids". Proceedings of 1993 IEEE 11th International Conference

Double layer (plasma physics) (5,204 words) [view diff] exact match in snippet view article

after its resemblance to blood cells. In a low density plasma, localized space charge regions may build up large potential drops over distances of the order

Explorer 55 (3,882 words) [view diff] exact match in snippet view article find links to article

less than 0.1 eV, which was not high enough to overcome the negative space charge potential holding the ions in the beam. Those ambient particles that

Multipactor effect (1,919 words) [view diff] no match in snippet view article find links to article

ISSN 0093-3813. Lau, Y.Y.; Verboncoeur, J.P.; Valfells, A. (2000). "Space-charge effects on multipactor on a dielectric". IEEE Transactions on Plasma

Band bending (2,607 words) [view diff] exact match in snippet view article find links to article

equation which governs the curvature obtained by the band edges in the space charge region, i.e. the band bending phenomenon, is Poisson’s equation, ▽2V=−ρ/ϵ{\displaystyle

Explorer 54 (4,420 words) [view diff] exact match in snippet view article find links to article

less than 0.1 eV, which is not high enough to overcome the negative space charge potential holding the ions in the beam. Those ambient particles that

Otto Scherzer (914 words) [view diff] no match in snippet view article find links to article

spherical and chromatic aberrations of a rotationally symmetric, static, space-charge-free, dioptric lens for electron beams cannot be eliminated by skillful

Dielectric spectroscopy (3,096 words) [view diff] exact match in snippet view article find links to article

surrounding. Ionic relaxation comprises ionic conductivity and interfacial and space charge relaxation. Ionic conductivity predominates at low frequencies and introduces

Geiger–Müller tube (4,282 words) [view diff] exact match in snippet view article find links to article

and move slowly from the vicinity of the anode wire. This creates a "space charge" which counteracts the electric field that is necessary for continued

Asım Orhan Barut (3,801 words) [view diff] no match in snippet view article find links to article

Diodes under Partial Space-Charge Conditions with Initial Velocities 1951 Erratum the Cathode Field in Diodes under Partial Space-Charge Conditions with Initial

John C. Slater (8,015 words) [view diff] exact match in snippet view article find links to article

George H. Vineyard received his Ph.D. with Slater in 1943 for a study of space charge in the cavity magnetron. Later, he became director of the Brookhaven

Explorer 51 (5,480 words) [view diff] exact match in snippet view article find links to article

less than 0.1-eV, which was not high enough to overcome the negative space charge potential holding the ions in the beam. Those ambient particles that

Janet Barlow (scientist) (525 words) [view diff] exact match in snippet view article

in 1995. In 1999, Barlow completed a PhD on the turbulent transfer of space charge in the atmospheric boundary layer at the University of Reading. After

Biosensor (12,037 words) [view diff] exact match in snippet view article find links to article

response). Note that potential of the working or active electrode is space charge sensitive and this is often used. Further, the label-free and direct

Sarah Cousineau (244 words) [view diff] exact match in snippet view article find links to article

Dakota MS, 2000, Ph.D., 2003, Indiana University Thesis Understanding space charge and controlling beam loss in high intensity synchrotrons (2003) Academic

Hydrogen sulfide sensor (911 words) [view diff] exact match in snippet view article find links to article

band bending effect and the creation of a depletion region known as the space charge field. When specific target gas particles come into contact with the

Lithium aluminium germanium phosphate (4,826 words) [view diff] no match in snippet view article find links to article

2020.115397. S2CID 224975198. Kumar, B.; Thomas, D.; Kumar, J. (2009). "Space-Charge-Mediated Superionic Transport in Lithium Ion Conducting Glass–Ceramics"

List of eponymous laws (10,123 words) [view diff] no match in snippet view article find links to article

existing state of affairs is understood. Child's law states that the space-charge limited current in a plane-parallel diode varies directly as the three-halves

Warren P. Waters (1,075 words) [view diff] case mismatch in snippet view article find links to article

(June 1954). "Some Experimental Studies with AC Operated Positive Ion Space Charge Detector". University of Southern California Library, M.S. Thesis. "Hughes

Supercapacitor (19,885 words) [view diff] exact match in snippet view article find links to article

capacitance[citation needed] which act in series with capacitance of ionic space charge. Therefore, further increase of density of capacitance in SCs can be

Hugo Christiaan Hamaker (675 words) [view diff] exact match in snippet view article find links to article

297–309. H.C. Hamaker (1950). Current distribution in triodes neglecting space charge and initial velocities. Applied Scientific Research, Section B, 1(1)

Vladimir Shiltsev (2,100 words) [view diff] no match in snippet view article find links to article

and future colliders, with significant contributions to beam physics, space-charge and beam-beam effects and their compensation, particle collimation and

Clement D. Child (754 words) [view diff] case mismatch in snippet view article find links to article

American Physical Society. Langmuir, Irving (1913). "The Effect of Space Charge and Residual Gases on Thermionic Currents in High Vacuum". Physical Review

Gordon S. Kino (1,393 words) [view diff] no match in snippet view article find links to article

S2CID 8524073. Kirstein, Peter T.; Kino, Gordon S.; Waters, William E. (1967). Space-charge Flow. McGraw-Hill. ASIN B0006BO3FQ. Kino, Gordon S. (1987). Acoustic

Line focus principle (709 words) [view diff] exact match in snippet view article find links to article

then compressed or focused by the focusing cup into a cloud known as a space charge. High-voltage is applied to the anode on the opposite side of the tube

Jon Orloff (944 words) [view diff] no match in snippet view article find links to article

ISSN 0734-211X. Wang, Li; Orloff, Jon; Tang, Tiantong (1995). "Study of space-charge devices for focused ion beam systems". Journal of Vacuum Science & Technology

Plasma diagnostics (3,029 words) [view diff] exact match in snippet view article find links to article

probe theory assumes collisionless movement of charge carriers in the space charge sheath around the probe. Further it is assumed that the sheath boundary

Aquadag (924 words) [view diff] exact match in snippet view article find links to article

through it to the anode power supply. Without the coating a negative space charge would develop near the screen, deflecting the electron beam. A typical

Arnold Beck (342 words) [view diff] no match in snippet view article find links to article

Velocity Modulated Thermionic Tubes (1948) Thermionic Valves (1953) Space-charge Waves (1958) Words and Waves (1967) Introduction to Physical Electronics

High-field domain (1,805 words) [view diff] no match in snippet view article find links to article

increases. When it reaches both electrodes the entire crystal becomes space-charge free (this is one more example at which an interaction vanishes: for

Ioan-Iovitz Popescu (1,414 words) [view diff] no match in snippet view article find links to article

incoherent pumping of a gamma ray laser with intense optical radiation Use of space-charge-amplification techniques in the absorption spectroscopy of Cs and Cs

Daniel Q. Posin (920 words) [view diff] exact match in snippet view article find links to article

the Townsend coefficients for ionization by collision in N₂, including a study of the effect of space charge field distortion upon these coefficients

2016 in science (16,740 words) [view diff] no match in snippet view article find links to article

1,000-fold increase in the scanning speed for 3-D printing, using a space-charge-controlled KTN beam deflector with a large electro-optic effect. 1 November

Cumyl alcohol (707 words) [view diff] exact match in snippet view article find links to article

Zhang, Hongliang; Wang, Yalin; Wu, Jiandong; Yin, Yi (February 2020). "Space charge dynamics of acetophenone and cumyl alcohol and their synergistic effect

Glass poling (894 words) [view diff] no match in snippet view article find links to article

Alley, T. G.; et al. (1999). "Secondary ion mass spectrometry study of space-charge formation in thermally poled fused silica". Journal of Applied Physics

Mary James (scientist) (875 words) [view diff] exact match in snippet view article

the longitudinal bunching of transrelativistic electron beams in high space charge forces and longitudinal wake fields. At SLAC National Accelerator Laboratory

Spectral imaging (radiography) (5,107 words) [view diff] exact match in snippet view article

leads to charge trapping and long-term polarization effects (build-up of space charge). Other solid-state materials, such as gallium arsenide and mercuric

Gas cluster ion beam (1,698 words) [view diff] no match in snippet view article find links to article

subsurface damage than with GCIB. The lack of electrical charge eliminates space-charge defocusing of the beam and static charge buildup on surfaces which is

History of mass spectrometry (2,961 words) [view diff] no match in snippet view article find links to article

Parkins, William E. (2005-05-01). "The Uranium Bomb, the Calutron, and the Space-Charge Problem". Physics Today. 58 (5): 45–51. Bibcode:2005PhT....58e..45P.

Brendan Scaife (2,273 words) [view diff] exact match in snippet view article find links to article

under irradiation can be explained by a simple model of the motion of space charge in a dielectric medium. In collaboration with his colleague and former

Rotating wall technique (1,772 words) [view diff] exact match in snippet view article find links to article

density and evaporative cooling to cool the plasma and fix the on-axis space charge potential. The result was greatly increased reproducibility for antihydrogen

List of dimensionless quantities (784 words) [view diff] exact match in snippet view article find links to article

}^{3}}}(1-\gamma ^{2}f_{e})} charged particle transport (measure of the strength of space charge in a charged particle beam) Pierce parameter C{\displaystyle C}

Photoconductive atomic force microscopy (9,438 words) [view diff] case mismatch in snippet view article find links to article

doi:10.1063/1.3483613. O.G. Reid; K Munechika; D.S. Ginger (2008). "Space Charge Limited Current Measurements on Conjugated Polymer Films using Conductive

Elias Burstein (2,923 words) [view diff] exact match in snippet view article find links to article

radiation. Further work lead to the investigation of the role of surface space charge electric fields and associated band-bending in inducing an otherwise

John P. Blewett (1,493 words) [view diff] case mismatch in snippet view article find links to article

Blewett, John P.; Ramo, Simon (1940). "High Frequency Behavior of a Space Charge Rotating in a Magnetic Field". Physical Review. 57 (7): 635–641. Bibcode:1940PhRv

List of fellows of IEEE Dielectrics & Electrical Insulation Society (57 words) [view diff] exact match in snippet view article find links to article

Takada "For contributions to the development of technology to measure space charge in solid and liquid dielectric materials" 1999 Arthur Yelon "For contributions

Scott D. Tanner (2,245 words) [view diff] case mismatch in snippet view article find links to article

Suppression in Inductively Coupled ‘Cold’ Plasma Mass Spectrometry June 1992 - Space Charge in ICP-MS: Calculation and Implications July 1988 - Nonspectroscopic

Tung-Sol (10,312 words) [view diff] exact match in snippet view article find links to article

Selected and matched tube". Retrieved 1 January 2023. "5. High-frequency space charge tubes" (PDF). Retrieved 12 January 2023. "Scintillation counter for uranium

Mott–Schottky plot (1,012 words) [view diff] exact match in snippet view article find links to article

Vbi. In the spatial axis the equilibration of Fermi levels produces a space charge region or depletion region of size w. A positive voltage applied to the

OLED (16,973 words) [view diff] no match in snippet view article find links to article

1038/186031a0. S2CID 4243929. Mark, Peter; Helfrich, Wolfgang (1962). "Space-Charge-Limited Currents in Organic Crystals". Journal of Applied Physics. 33