The electron drift velocity in dense gases

Atrazhev, V.M.; Iakubov, I. T.

doi:10.1088/0022-3727/10/16/005

Cited by 90 publications

(36 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter seems clear enough. The former is obscured by the wide variety of treatments of the average electron wavelength (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). The different treatments cause differences up to eleven-fold in the predicted densities where multibody scattering should become important (see Appendix 1).…”

Section: Ioffe-regel Criteriamentioning

confidence: 99%

“…Atrazhev and Iakubov (15) apparently decided that a localized electron requires a space 2XT in dimension, which is a Bohr-type diameter. They modified eq.…”

Section: Ioffe-regel Criteriamentioning

confidence: 99%

“…When the electron-molecule interaction is repulsive (as when the molecule is nonpolar and has a very small polarizability) n k decreases (negative effect) (15). When the electron-molecule interaction is attractive (as when the molecule is nonpolar and has a large polarizability) n k increases (positive effect) (15).…”

Section: Ioffe-regel Criteriamentioning

confidence: 99%

See 2 more Smart Citations

Electron transport in dense gases: limitations on the Ioffe-Regel and Mott criteria

Gee¹,

Freeman²

1986

Can. J. Chem.

View full text Add to dashboard Cite

. Can. J. Chem. 64, 1810Chem. 64, (1986. In the gas phase, the Ioffe-Regel criterion that electron transport becomes modified when the mean free path equals the electron wavelength (L = A) applies clearly only to helium and hydrogen, which have a net repulsive interaction with electrons. The Mott criterion, that when L = A/2r the electron is in a localized state. also applies to these two gases. The two criteria are less effective for molecules that have net attractive interactions with the electrons, because the interactions are not simply additive. They are not useful for xenon gas. The criteria are also assessed for: ( a ) several highly polarizable, spherical and nonspherical molecules; (b) polar molecules; (c) [Traduit par la revue]

show abstract

Section: Ioffe-regel Criteriamentioning

confidence: 99%

“…Atrazhev and Iakubov (15) apparently decided that a localized electron requires a space 2XT in dimension, which is a Bohr-type diameter. They modified eq.…”

Section: Ioffe-regel Criteriamentioning

confidence: 99%

See 1 more Smart Citation

Electron transport in dense gases: limitations on the Ioffe-Regel and Mott criteria

Gee¹,

Freeman²

1986

Can. J. Chem.

View full text Add to dashboard Cite

show abstract

“…c) An enhancement of the backscattering rate due to the quantum self-interference of the electron wavepacket along paths connected by time-reversal symmetry [24,25].…”

Section: Introductionmentioning

confidence: 99%

“…However, in contrast to the MS theories, it assumes that only the kinetic part of the shift affects the mobility in the same way for both attractive and repulsive gases, whereas the MS theories introduce different mechanisms of action according to the sign of the total energy shift [17][18][19]25]. …”

Section: Introductionmentioning

confidence: 99%

Electron mobility in dense Argon gas at several temperatures

Borghesani

Lamp²

Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319)

View full text Add to dashboard Cite

The mobility of excess electrons in dense Argon gas has been measured as a function of the applied electric field E and of the gas density N at several temperatures in the range 142.6T c and the small negative effect previously observed for T 90 K. In any case, the data at all temperatures confirm the interpretation of the anomalous density effect as being essentially due by the density-dependent quantum shift of the electron ground state kinetic energy in a disordered medium as a result of multiple scattering (MS) processes, although other MS processes do influence the outcome of the experiment.

show abstract

Radiation Interactions in High-Pressure Gases

Christophorou

1991

Physical and Chemical Mechanisms in Molecular Radiation Biology

View full text Add to dashboard Cite

Govecnm_t retmns rovalty-_ _ to _ nonexclum_, or ral_oduce ' the pubiist_ fom_ of this _, alk)w others to do so, for U.S. I. j' autodetachment aad , ionization ai, and the associated physical quantities [e.g., the electron affinity EA, the vertical attachment energy VAE, the vertical detachment energy VDE, the ionization threshold energy I, and the polalization energy of the positive (PW) and the negative (P-)ions] are all strong functions of the nature and density of the medium in which these elementary physical processes occur. While these physical quantities have well-defined values at low-gas number densities, they ' assume a spectrum of values in dense media.. Understanding these effects is a prerequisite for the successful use of physicochemical knowledge in establishing mechanisms of radiobiological action and in developing novel radiobiological instrumentation. This article is on basic radiation interaction processes in dense fluids and on interphase studies aiming at the interfacing of knowledge on radiation interaction processes in the gaseous and the liquid state of matter. It is specifically focused on the effect of the density and nature of the medium on electron production in irradiated fluids and on the state, energy, transport, and attachment of slow excess electrons in dense fluids especially dielectric liquids which possess excess-electron conduction bands (V o < 0 eV) [1-4]. Studies over the past twodecades have shown that the interactions of low-energy electrons with molecules embedded in dense media depend not oItly on the molecules themselves [1-7] and their internal state of excitation [8-10], but also on the electron state and energy in =-and the nature and density of-the medium in which the interactions occur [3,4,11,12]. II. ELECTRON PRODUCTION IN DENSE FLUIDS A. Total and Free Electron Yields The processes by which isolated atoms and molecules are ionized by radiation, and the corresponding cross sections, have been well studied and are reasonably weil understood [1,2,5-7]. Measurements of electron impact ionization cross sections _7i(_) in gases are, for example, abundant. This, however, can not be said of dense fluids. In these, there exist measurements of only the density, N, normalized ionization "" ' ' a/x,_ coelI_Cl_nl, &g _1, IUlI.L, blU_.I Ul.

show abstract

The electron drift velocity in dense gases

Cited by 90 publications

References 21 publications

Electron transport in dense gases: limitations on the Ioffe-Regel and Mott criteria

Electron transport in dense gases: limitations on the Ioffe-Regel and Mott criteria

Electron mobility in dense Argon gas at several temperatures

Radiation Interactions in High-Pressure Gases

Contact Info

Product

Resources

About