Plasma recombination

Plasma recombination - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Plasma recombination

Note: these results are not from the primary (high quality) database.

In the News (Mon 28 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Patent 4388720: External control of recombination rate for electron-ion recombination lasers
		The dramatic increase in power output is directly attributed to the degree of control of the electron recombination rate in the plasma achieved with the excitation pulse of curve 202 which was specifically shaped according to the present invention.
		The idea of producing a population inversion during plasma recombination was first proposed in an article entitled, "Negative Absorption in a Nonequillibrium Hydrogen Plasma", Sov.
		Beam splitters 631-633 and targets 400-402 are spaced at intervals so that radiation from beam 621 is delayed from impinging upon plasma 453 less than the delay for beam 623 impinging upon plasma 452 which is in turn delayed less than the delay for beam 625 impinging upon plasma 451.
	www.freepatentsonline.com /4388720.html

	Radiative cooling coefficient for krypton
		Radiation in the outermost region of the plasma from deliberately introduced, high recycling impurities is seen as a possible mechanism for controlling the heat load deposited onto the plasma facing components of a fusion reactor [ 4, 5 ].
		Radiative recombination, dielectronic recombination and bremsstrahlung emission are also included in the total cooling rate coefficient calculation.
		The calculated radiative loss rate is compared with two measurements of the radiative cooling coefficient for krypton in the FTU plasma.
	epub.iaea.org /fusion/subscribe/40/apr/ms6833FournK/6833.html

	DISSOCIATIVE RECOMBINATION
		Dissociative recombination is a complex molecular process that occurs in any plasma cold enough to contain molecular constituents.
		In this book, recent developments in the fields of molecular ion physics, atomic and molecular theory, astrochemistry, aeronomy and plasma physics are discussed.
		It is the dominant recombination process in planetary ionospheres and interstellar clouds.
	www.worldscibooks.com /physics/4226.htm

	Open Directory - Science: Physics: Physicists
		Research interests are computational fluid dynamics, particle-solid and plasma interaction physics, plasma physics, biophysics of membrane proteins.
		Southampton Physics and Astronomy Staff - Faculty and staff at the Physics and Astronomy Department at the University of Southampton.
		Paola Baldelli, Dr. of Medical Physics - Includes links to Dr Baldelli's CV, research activity in the field of Diagnostic radiology, specifically in the field of mammography in the University of Ferrara, Italy.
	dmoz.org /Science/Physics/Physicists

	Plasma Physics and Astrophysics Research Papers and Proposals
		The scattering coefficient of highly excited atomic levels formed by recombination from a plasma and energetically broadened by plasma field fluctuations is determined.
		Expressions are derived for the atomic cross sections concerning the resonant scattering, photo-ionization and radiative recombination processes under full consideration of the quantum-mechanical boundary conditions for a resonant oscillator (for both the one-dimensional as well as the two-dimensional case which is relevant for circular polarization and/or magnetic fields).
		The resultant recombination cross section for electrons and protons turns out to be several orders of magnitudes larger than values found in the literature (FIG.1).
	www.plasmaphysics.org.uk /research

	Talk:Plasma cosmology/Archive 1 - Wikipedia, the free encyclopedia
		While the Big Bang model of cosmology suggests that the early universe was composed entirely of plasma from reheating until recombination, plasma cosmology proposes that many cosmological processes that are explained through gravitational physics in Big Bang cosmology are in fact electromagnetic in nature.
		In plasma cosmology, the universe is inherently cellular and filamentary structured, due to the dynamics of the plasma.
		Plasma cosmology is not a scientific theory in the sense that a) predictions it has made were not observed and b) the current incarnations of the theory make NO predictions whatsoever.
	en.wikipedia.org /wiki/Talk:Plasma_cosmology/Archive_1 (11646 words)

	CPC Licence Alert
		Keywords: Radiative recombination, Astrophysics, Hydrogenic ions, Asymptotic expansion, Kramers-gaunt factor, Radioastronomy, Plasma physics, Atomic process.
		Radiative recombination coefficients are required for various problems in physics and astrophysics; one such problem is the calculation of the ionization equilibria and recombination spectra of gaseous nebulae.
		The recombination coefficients are expressed as integrals over the photo-ionization cross-sections, which are evaluated using the first three terms in the asymptotic expansion of the Kramers-Gaunt g-factor.
	www.cpc.cs.qub.ac.uk /summaries/ACQD.html (11646 words)

	CPC Licence Alert
		Keywords: Radiative recombination, Astrophysics, Hydrogenic ions, Asymptotic expansion, Kramers-gaunt factor, Radioastronomy, Plasma physics, Atomic process.
		Radiative recombination coefficients are required for various problems in physics and astrophysics; one such problem is the calculation of the ionization equilibria and recombination spectra of gaseous nebulae.
		The recombination coefficients are expressed as integrals over the photo-ionization cross-sections, which are evaluated using the first three terms in the asymptotic expansion of the Kramers-Gaunt g-factor.
	www.cpc.cs.qub.ac.uk /summaries/ACQD.html (11646 words)

	Physics Myths and physics facts
		Recombination: Radiative Recombination of ions with electrons is one of the fundamental processes in plasmas and should be treated therefore on an atomistic basis.
		Ionosphere: The theory for the physics of the ionosphere is flawed in many respects partially due to the inconsistencies in the underlying theories like atomic physics and plasma physics.
		Dualism: Modern Physics claims that any physical form of matter or energy can not be uniquely described as either a particle or wave, but has both properties, either of which manifests itself dependent on the physical situation (experimental set-up) considered.
	www.physicsmyths.org.uk (11646 words)

	Program for Plasma Polymerization/Deposition Symposium
		Plasma polymerisation is the relevant process in the "plasma on" period whereas a recombination polymerization of fragmented monomer molecule radicals occurs when the plasma is switched off.
		Plasma copolymerisation of a "functionalised" monomer with a hydrocarbon "diluent" comonomer may be used to fabricate surfaces of controlled surface chemistry.
		Plasma polymerization on metal using DC glow discharge was carried out for the hydrophilic surface formation using hydrocarbon reactive monomer in various deposition time, voltage, current, and pressure.
	mstconf.com /plasabs.htm (11646 words)

	Solar Radiative Recombination Spectrum
		The dashed curve (which is shown here displaced upwards by 8 orders of magnitude) gives the cascade emission if no radiative enhancement due to level broadening by plasma field fluctuations is assumed.
		It is evident that for these parameters (which are generally assumed to be appropriate for the solar photosphere) the theoretical curve is not consistent with the observed solar spectrum as the former becomes discrete for infrared and shorter wavelenghts.
		The overall theoretical radiation excess could be explained by the neglection of radiative transfer effects for the present model.
	www.plasmaphysics.org.uk /research/solspec.htm (11646 words)

	Session LI2 - Education/Astrophysical Plasmas and Laboratory Simulations.
		These well-characterized experiments validate astrophysical data interpretation, enhance understanding of the dominant photoionization and recombination processes in these plasmas, and should eventually aid in understanding other plasma regimes where the same processes are significant.
		Plasmas, 2001) is shown to reproduce global equilibrium magnetic field profiles of the spheromaks as well as much of the detailed reconnection dynamics measured when two spheromaks are merged.
		Plasma physics provides a unique opportunity to teach introductory level high school physics as a unified approach to analyzing real phenomena instead of presenting it as a collection of disjointed topics.
	flux.aps.org /meetings/YR01/DPP01/abs/S1520.html (1729 words)

	MSc Physics of Advanced Semiconductor Materials - lecture 1
		To sustain the plasma, electrons must be generated at a rate which is large enough to offset the loss of electrons to the chamber walls, recombination with positive ions and/or electron attachment reactions.
		Plasmas are often described as being the 4th state of matter, together with liquid, solid and gas.
		One of the features of a plasma is that whilst the bulk of the glow discharge remains at equipotential, most of the voltage applied between the electrodes is dropped across a small region surrounding any surface in contact with the plasma, especially the electrodes.
	www.chm.bris.ac.uk /~paulmay/misc/msc/msc1.htm (2274 words)

	Program for Plasma Polymerization/Deposition Symposium
		Plasma polymerisation is the relevant process in the "plasma on" period whereas a recombination polymerization of fragmented monomer molecule radicals occurs when the plasma is switched off.
		Plasma polymerization on metal using DC glow discharge was carried out for the hydrophilic surface formation using hydrocarbon reactive monomer in various deposition time, voltage, current, and pressure.
		Plasma polymerized organic layers have many advantageous properties, as e.g.
	mstconf.com /plasabs.htm (2274 words)

	Ultrafast Laser Physics and Recombination of Atoms
		Recombination of cold positron and antiproton plasma, under the influence of a pulsed electric field, might be able change this situation.
		Experiments are performed with rubidium to study the fundamentals of this recombination process.
		The pulsed electric field recombination project aims at finding an efficient way to produce atoms out of ions and electrons.
	www.nat.vu.nl /n_s_old/vakgroepen/atom/english/research/femtogroup/intro.html (2274 words)

	APS - 2005 36th Meeting of the Division of Atomic, Molecular and Optical Physics PostDeadline - Event - Recombination of a Strongly Magnetized Two-Component Plasma in a Nested Penning-Ioffe Trap
		Abstract: F1.00005 : Recombination of a Strongly Magnetized Two-Component Plasma in a Nested Penning-Ioffe Trap
		APS - 2005 36th Meeting of the Division of Atomic, Molecular and Optical Physics PostDeadline - Event - Recombination of a Strongly Magnetized Two-Component Plasma in a Nested Penning-Ioffe Trap
		Recombination leads to the formation of long-lived high-$m$ drift Rydberg states, analagous to those recently observed in cold \={H}.
	meetings.aps.org /Meeting/DAMOP05/Event/30365 (2274 words)

	DFS 2002 Atomic physics abstract
		Dissociative recombination (DR) is the process in which a positively charged molecular ion recombines with an electron and dissociates into neutral fragments.
		DR is thus of great importance in the modelling of the charge density and chemical composition of a plasma.
		DR is a quite fast process, with thermal rate coefficients magnitudes larger than those of atomic recombination.
	www.nbi.dk /dfs/abs2002/af03p.html (2274 words)

	plasma
		Radiative recombination gives rise to a continuum of emission, with a minimum energy equal to the binding energy of the ion in its final state.
		However, recombination to an excited state can and does regularly happen, via two different processes: radiative recombination and dielectronic recombination.
		Calculating recombination to non-ground states requires data on the cross section of excited ions.
	asc.harvard.edu /atomdb/physics/plasma/plasma.html (2274 words)

	Tokamak Plasma Spectroscopy at LLNL
		The reason for the observed discrepancies is the poor quality of the recombination data used as well as the neglect of the indirect ionization process, excitation autoionization in the plasma modeling code.
		The large bump in the experimental data at the outermost radii (coldest temperatures) is due to radiative losses from intrinsic oxygen; aside from oxygen, molybdenum is the overwhelmingly dominant impurity species in the plasma.
		Copious impurity radiation from the core of an tokamak plasma will be deleterious to energy and particle confinement, and can quench the fusion reaction.
	www-phys.llnl.gov /Research/Tokamak (2274 words)

	Low Density Universes and Inflation
		At recombination, however, the physics at that time, believed to be well understood, introduces a preferred scale of known length on which the first acoustic oscillations of the plasma occur.
		This scale is of known physical size, and from its angle subtended in the sky today, we can determine the geometry of the universe.
		According to classical physics, once stuck in the local minimum the inflaton field never escapes.
	www.damtp.cam.ac.uk /user/gr/public/inf_lowden.html (2274 words)

	plasma
		Radiative recombination gives rise to a continuum of emission, with a minimum energy equal to the binding energy of the ion in its final state.
		Therefore, when asking if recombination to a given level will be important we can examine only the case of zero-energy electrons, where the emitted photon's energy comes entirely from the binding energy of the level.
		However, cross sections for recombination are not generally calculated by the atomic physics community; photoionization cross sections are.
	asc.harvard.edu /atomdb/physics/plasma/plasma.html (2274 words)

	Session DA - Recent Advances in Atomic Physics.
		Electron-ion recombination, and to a lesser extent ion-ion reacombination, are the volume ionization loss processes in plasma media.
		The physical basis and the theory of Three-Body Recombination(Flannery, M. R., Electron-Ion and Ion-Ion Recombination in Atomic, Molecular and Optical Physics Handbook), edited by G. Drake, New York: AIP Press, 1995, ch.
		Recombination is then stabilized radiatively by decay (\tau_r \sim n^3) to lower electronic levels.
	flux.aps.org /meetings/YR98/BAPSSES98/abs/S170.html (2274 words)

	Diagnostics of a Macroscopic PDP Cell - Matrix Geometry
		It is clear that even for the same pd, the plasma density will decay faster (in units of pt) at higher pressure than at lower pressure because of the larger recombination rate at higher pressure.
		The plasma forms on the right side of the cell (anode side) and expands toward the cathode (left side); blue color corresponds to a zero emission, red color to the maximum emission (each picture is normalized to the maximum of emission at the corresponding time).
		J.P. Boeuf and L.C. Pitchford, Calculated characteristics of an ac plasma display panel cell IEEE Transactions on Plasma Science, 1996, 24, 1, pp.
	cpa94.ups-tlse.fr /operations/operation_03/POSTERS/Pdpccd (2274 words)

	Stevefelt (1968) Spectroscopic study of recombination in the early afterglow of a helium plasma
		Stevefelt (1968) Spectroscopic study of recombination in the early afterglow of a helium plasma
		Spectroscopic study of recombination in the early afterglow of a helium plasma
	www.getcited.org /pub/101557715 (2274 words)

	Plasma Laser Star Theory
		An analysis is made of the recombination mechanisms of population inversion of atomic, ionic and molecular levels, of the methods of producing a supercooled plasma, and of the characteristics of different variants of plasma lasers.
		At short wavelengths and high energies, the plasma lasers have important advantages over the conventional gas lasers in which the active medium is a gas-discharge overheated plasma which is being ionized.
		Abstract: A review is given of the investigations of lasers in which the amplifying medium is a rapidly recombining (supercooled in respect to free electrons) dense plasma.
	laserstars.org /G1975 (186 words)

	James Colgan: Atomic and Molecular Physics for Astonomical Observations
		Such processes are the dominant electron-ion recombination processes in many astrophysical plasmas.
		These processes occur in different types of astrophysical plasmas found in stars, the interstellar medium, regions near galactic centers, and over a range of plasma densities and temperatures.
		This data is placed into atomic databases such as Atomic Data and Analysis Structure (ADAS) which is used for collisional-radiative modeling by both fusion and astrophysical plasma modelers.
	www.batse.msfc.nasa.gov /colloquia/abstracts_summer03/colgan.html (298 words)

	Curriculum Vita for Steffen A Bass
		Hadronization at RHIC: Interplay of Recombination and Fragmentation, Invited plenary talk at the 5th International Conference of the Physics and Astrophysics of the Quark-Gluon-Plasma, Kolkata, India, February 12, 2005
		Hadronization at RHIC: Recombination vs. Fragmentation, NATO Advanced Studies Institute on Structure and Dynamics of Elementary Matter, Kemer, Turkey, 01 October 2003
		RHIC Physics with the Parton Cascade Model, Nuclear Theory Seminar, University of Minnesota, Minneapolis, MN, December 09, 2004
	fds.duke.edu /db?cv-15-36-832-p (298 words)

	Transport model of charged particle behavior in the afterglow region of a microwave generated oxygen plasma
		PLASMA, OXYGEN, TRANSPORT PROCESSES, RECOMBINATION, MATHEMATICAL MODELS, ELECTRON TEMPERATURE, PLASMA RADIAL PROFILES, RADICALS, AFTERGLOW, CHARGED PARTICLES
		Transport model of charged particle behavior in the afterglow region of a microwave generated oxygen plasma
		low-pressure oxygen plasma is developed, and compared with experimental results.
	content.aip.org /JAPIAU/v74/i2/825_1.html (298 words)

	Collisional-Radiative Recombination of Ar^+ Ions with Electrons in a Flowing Afterglow Plasma.
		Collisional-Radiative Recombination of Ar^+ Ions with Electrons in a Flowing Afterglow Plasma.
		[RR1.06] Collisional-Radiative Recombination of Ar^+ Ions with Electrons in a Flowing Afterglow Plasma.
	flux.aps.org /meetings/YR98/BAPSGEC98/abs/G5400006.html (298 words)

Try your search on: Qwika (all wikis)

Topic: Plasma recombination

Ads by Google

Related Topics

In the News (Mon 28 Dec 09)