Relevant bibliographies by topics / Current-free double layer

Academic literature on the topic 'Current-free double layer'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Current-free double layer.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Current-free double layer"

1

Maciel, Homero Santiago, and J. E. Allen. "Free double layers in mercury-arc discharges." Journal of Plasma Physics 42, no. 2 (October 1989): 321–52. http://dx.doi.org/10.1017/s0022377800014380.

Full text
Abstract:
A study has been carried out of free double layers formed within the plasma volume of a low-pressure mercury-arc discharge at high current densities. The free double layer is observed to form as a visible boundary, which drifts slowly from the central section of the discharge. Current-driven instabilities are observed as the discharge current is gradually increased to a critical value, at which current limitation is observed to occur. This process, which is accompanied by high-current spikes, ceases when the free double layer becomes visible as a sharp boundary dividing the discharge column into two regions of different luminosities. The layer is observed to form in the later stages of current limitation, the onset of which occurs for a ratio of drift to thermal speed of electrons of about unity. Electrical energy is converted by the layer into kinetic energy of the charged particles. Accordingly, high-energy ions were measured by means of an electrostatic energy analyser. The multiple-sheath character of the free ‘double layer’, which is inferred from probe measurements of potential profiles, is discussed and comparisons with other space-charge structures with the same topology are made.
APA, Harvard, Vancouver, ISO, and other styles
2

Charles, C., and R. W. Boswell. "Time development of a current-free double-layer." Physics of Plasmas 11, no. 8 (August 2004): 3808–12. http://dx.doi.org/10.1063/1.1764829.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Baalrud, S. D., T. Lafleur, R. W. Boswell, and C. Charles. "Particle-in-cell simulations of a current-free double layer." Physics of Plasmas 18, no. 6 (June 2011): 063502. http://dx.doi.org/10.1063/1.3594565.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hairapetian, G., and R. L. Stenzel. "Observation of a stationary, current-free double layer in a plasma." Physical Review Letters 65, no. 2 (July 9, 1990): 175–78. http://dx.doi.org/10.1103/physrevlett.65.175.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Keesee, Amy M., Earl E. Scime, Christine Charles, Albert Meige, and Rod Boswell. "The ion velocity distribution function in a current-free double layer." Physics of Plasmas 12, no. 9 (September 2005): 093502. http://dx.doi.org/10.1063/1.2033647.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Boswell, Roderick W., Eckart Marsch, and Christine Charles. "The Current-Free Electric Double Layer in a Coronal Magnetic Funnel." Astrophysical Journal 640, no. 2 (March 7, 2006): L199—L202. http://dx.doi.org/10.1086/503155.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Ganguli, A., B. B. Sahu, and R. D. Tarey. "Evidence of current free double layer in high density helicon discharge." Physics of Plasmas 20, no. 1 (January 2013): 013510. http://dx.doi.org/10.1063/1.4789455.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Charles, C. "High source potential upstream of a current-free electric double layer." Physics of Plasmas 12, no. 4 (April 2005): 044508. http://dx.doi.org/10.1063/1.1883182.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Charles, Christine, and Rod Boswell. "Current-free double-layer formation in a high-density helicon discharge." Applied Physics Letters 82, no. 9 (March 3, 2003): 1356–58. http://dx.doi.org/10.1063/1.1557319.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lieberman, M. A., C. Charles, and R. W. Boswell. "A theory for formation of a low pressure, current-free double layer." Journal of Physics D: Applied Physics 39, no. 15 (July 21, 2006): 3294–304. http://dx.doi.org/10.1088/0022-3727/39/15/011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Current-free double layer"

1

Meige, Albert, and albert@meige net. "Numerical modeling of low-pressure plasmas: applications to electric double layers." The Australian National University. Research School of Physical Sciences and Engineering, 2006. http://thesis.anu.edu.au./public/adt-ANU20070111.002333.

Full text
Abstract:
Inductive plasmas are simulated by using a one-dimensional particle-in-cell simulation including Monte Carlo collision techniques (pic/mcc). To model inductive heating, a non-uniform radio-frequency (rf) electric field, perpendicular to the electron motion is included into the classical particle-in-cell scheme. The inductive plasma pic simulation is used to confirm recent experimental results that electric double layers can form in current-free plasmas. These results differ from previous experimental or simulation systems where the double layers are driven by a current or by imposed potential differences. The formation of a super-sonic ion beam, resulting from the ions accelerated through the potential drop of the double layer and predicted by the pic simulation is confirmed with nonperturbative laser-induced fluorescence measurements of ion flow. It is shown that at low pressure, where the electron mean free path is of the order of, or greater than the system length, the electron energy distribution function (eedf) is close to Maxwellian, except for its tail which is depleted at energies higher than the plasma potential. Evidence supporting that this depletion is mostly due to the high-energy electrons escaping to the walls is given. ¶ A new hybrid simulation scheme (particle ions and Boltzmann/particle electrons), accounting for non-Maxwellian eedf and self-consistently simulating low-pressure high-density plasmas at low computational cost is proposed. Results obtained with the “improved” hybrid model are in much better agreement with the full pic simulation than the classical non self-consistent hybrid model. This model is used to simulate electronegative plasmas and to provide evidence supporting the fact that propagating double layers may spontaneously form in electronegative plasmas. It is shown that critical parameters of the simulation were very much aligned with critical parameters of the experiment.
APA, Harvard, Vancouver, ISO, and other styles
2

Yu-JengSu and 蘇育正. "The Current-Free Double Layer in Helicon sources." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/41483655085392899218.

Full text
Abstract:
碩士
國立成功大學
太空天文與電漿科學研究所
99
Helicon sources can have mirror-like magnetic fields. These fields act like a magnetic nozzle that divides plasmas into the convergent side, the throat and the divergent side when plasmas flow along the field line. In addition, helicon sources, that have strong magnetic field, low gas pressure and high plasma density, provide the experimental setup for the current-free double layer. In Charles and Boswell’s experiments [Appl. Phy. Lett. 82, 9 (2003)], a current-free double layer in high-density helicon discharges is observed. They have observed abrupt decreases in density and temperature across the double layer. To explain the experimental results, the physics of a current-free double layer in plasmas that have two components of isothermal electrons with different temperatures has been studied [Ahedo and Sa ?nchez, Phy. Rev. Lett. 130, 135002 (2009)]. However, this isothermal model cannot account for the change of the electron temperature across the double layer as seen in the experiments. To explain the abrupt change of the electron temperature, electrons cannot be isothermal along the magnetic field lines. In this thesis, a model for the formation of a stationary current-free double layer in collisionless plasmas expanding in a magnetic nozzle is presented. The model consists of cold ions, isothermal hot electrons and fere-isothermal, i.e., almost isothermal, cold electrons and their dynamics. It can determine the position and the amplitude of double layer including the jump in cold electron temperature across the layer. The magnitude of the jump is consistent with the experimental observations. Plasmas are accelerated to the supersonic speed mainly by magnetic nozzle and the contribution from the double layer is small. The effects of ion charge Z on the flow speed at the nozzle throat and at the exit are also discussed.
APA, Harvard, Vancouver, ISO, and other styles
3

Meige, Albert. "Numerical modeling of low-pressure plasmas: applications to electric double layers." Phd thesis, 2006. http://hdl.handle.net/1885/45749.

Full text
Abstract:
Inductive plasmas are simulated by using a one-dimensional particle-in-cell simulation including Monte Carlo collision techniques (pic/mcc). To model inductive heating, a non-uniform radio-frequency (rf) electric field, perpendicular to the electron motion is included into the classical particle-in-cell scheme. The inductive plasma pic simulation is used to confirm recent experimental results that electric double layers can form in current-free plasmas. These results differ from previous experimental or simulation systems where the double layers are driven by a current or by imposed potential differences. The formation of a super-sonic ion beam, resulting from the ions accelerated through the potential drop of the double layer and predicted by the pic simulation is confirmed with nonperturbative laser-induced fluorescence measurements of ion flow. It is shown that at low pressure, where the electron mean free path is of the order of, or greater than the system length, the electron energy distribution function (eedf) is close to Maxwellian, except for its tail which is depleted at energies higher than the plasma potential. Evidence supporting that this depletion is mostly due to the high-energy electrons escaping to the walls is given. ¶ A new hybrid simulation scheme (particle ions and Boltzmann/particle electrons), accounting for non-Maxwellian eedf and self-consistently simulating low-pressure high-density plasmas at low computational cost is proposed. Results obtained with the “improved” hybrid model are in much better agreement with the full pic simulation than the classical non self-consistent hybrid model. This model is used to simulate electronegative plasmas and to provide evidence supporting the fact that propagating double layers may spontaneously form in electronegative plasmas. It is shown that critical parameters of the simulation were very much aligned with critical parameters of the experiment.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Current-free double layer"

1

Dutta, Dharitree, and Monojit Chakraborty. "Particle-in-Cell Simulation of a Current Free Double Layer." In 2020 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2020. http://dx.doi.org/10.1109/icops37625.2020.9717587.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Buschmann, Lisa, Njal Gulbrandsen, and Ashild Fredriksen. "Energetic electrons upstream and downstream of a current-free double layer (CFDL) in an inductively coupled helicon plasma." In 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2019. http://dx.doi.org/10.1109/iceaa.2019.8878951.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ahedo, Eduardo, and Manuel Martínez Sánchez. "The Role of Current-Free Double-Layers in Plasma Propulsion." In 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-5005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Jackson, Joshua E., Angelique N. Lasseigne-Jackson, David L. Olson, Brajendra Mishra, Meredith S. Heilig, and Jenny K. Collins. "The Effect of Magnetic Fields on Corrosion in Pipeline Steel." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29560.

Full text
Abstract:
Measurements performed in earlier research have indicated a strong effect of magnetization on hydrogen content (thermodynamics) as well as cracking, and pitting (kinetics) in pipeline steels as described in Sanchez (2005) and Sanchez et al. (2005). The effect of cold work, further increasing hydrogen content, cracking, and pitting, was also assessed. Theoretical descriptions of both thermodynamic and kinetic interpretations of the observed effect is described and correlated to observed results. There are two ways that electromagnetic current influences corrosion: (1) D/C currents (under applied or Remanent magnetic fields) and A/C electric currents (which create electromagnetic fields through Lenz’s Law) may influence magnetocorrosion as described in this paper, and (2) A/C currents also have the potential to strip the protective passive layer from materials and greatly accelerate corrosion. Electrochemical charging is currently being performed at varied magnetic field strengths to assess the nature of the observed influence of magnetization on both hydrogen content (thermodynamic) and cracking/pitting (kinetic), including the role of controlled-roll cold working. Naval and maritime use of A/C and D/C electric-powered systems including propulsion drives, servos, and controls, is increasing rapidly in sea-going operation and potential for stray currents is an increasing risk. Magnetic flux leakage inspection, using saturating magnetic fields, is widely used for reliable and accurate inspection of pipeline corrosion and wall thickness. Previous laboratory research shows a significant increase in both pipeline steel hydrogen content in steel and pitting and cracking after electrochemical hydrogen charging under an applied two Tesla magnetic field. Cold work was observed to further increase the observed effects. The thermodynamic auxiliary functions, using a derivation of Helmholtz free energy, are examined to assess the thermodynamic effects of magnetization on hydrogen content. The effect of magnetization on the thermodynamics of electron spin configurations, interstitial solute-induced strain, magnetostriction (directional strain induced in steel from an applied magnetic field) are considered. Kinetic interpretations of possible interactions with the Helmholtz Double (capacitor-like) Layer and the Gouy-Chapman (diffuse) layer that may lead to increased diffusion and thus to hydrogen supersaturation are described. Electrochemical impedance measurements are being performed to assess the influence of applied magnetic fields on the Helmholtz and Gouy-Chapman layers.
APA, Harvard, Vancouver, ISO, and other styles
5

Henderson, C., and N. Hershkowitz. "Simulation of Current Free Double layers in highly electronegative plasma using Monte Carlo Collision in OOPIC Pro and XOOPIC." In 2011 IEEE 38th International Conference on Plasma Sciences (ICOPS). IEEE, 2011. http://dx.doi.org/10.1109/plasma.2011.5992901.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Strzelecka, E. M., K. Bertilsson, D. Louderback, B. J. Thibeault, G. B. Thompson, and L. A. Coldren. "VCSEL-based Free-Space Optical Interconnect with Integrated Microlenses." In Optics in Computing. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/oc.1997.otha.3.

Full text
Abstract:
Increasing computer clock speed is the motivation for investigating the use of optics in comupter interconnects. The technology that will eventually replace electrical interconnects must feature high speed and low power consumption at a low cost to the end user. Vertical cavity surface emitting laser (VCSELs) arrays have become viable candidates for transmiters in optical links [1-2]. Their low threshold currents (< 300 µA for ~ 4 µm diameter devices), relatively low power consumption, and low operating voltage (< 2 V) [3-4], make them compatible with simple drive circuits. High modulation bandwidth can be achieved without additional pre-bias circuitry. VCSELs with a record 3 dB bandwidth of 15.3 GHz at only 2.1 mA of bias current have been reported [5]. Furthermore, highly divergent beams from small diameter devices are compatible with microoptics integrated on the same substrate. The beams reaching the back side of the substrate fill integrated microlenses enabling high numerical aperture (NA) focusing or collimation into low diffraction beams. With these integrated components, coupling into fibers and collimation for free-space systems can be realized with no external optics. We demonstrate a free-space optical link consisting of arrays of substrate emitting VCSELs as transmitters and back-side illuminated double-pass Schottky photodiodes as receivers. These devices are integrated on-chip with microlenses etched on the back side of the substrate [6]. Analysis and test results of the system’s tolerance to mechanical misalignments are presented.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Current-free double layer' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography