✦ LIBER ✦

Thermalization of fast nitrogen atoms in elastic and inelastic collisions with molecules of atmospheric gases

✍ Scribed by V. Kharchenko; N. Balakrishnan; A. Dalgarno

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 1012 KB
Volume: 60
Category: Article
ISSN: 1364-6826
DOI: 10.1016/s1364-6826(97)82763-0

No coin nor oath required. For personal study only.

✦ Synopsis

The energy relaxation of fast nitrogen atoms due to elastic and inelastic collisions with molecules in the atmosphere is studied. A new formula for the energy relaxation kernel in the Boltzmann kinetic equation, which applies equally to elastic and inelastic collisions, is derived. Angular and energy dependent differential cross sections are used in calculations of the energy transfer rate. The energy relaxation kernel is evaluated for inelastic N+ N2 collisions with numerically determined differential cross sections for rotational and vibrational excitation of the N, molecules. The mean rate of energy loss, the average energy transfer per collision and mean thermalization times are calculated as functions of the kinetic energy of the nitrogen atoms. The contributions of elastic and inelastic scattering to the thermalization of N atoms in the terrestrial atmosphere are analyzed. The energy distribution functions of the fast nitrogen atoms are evaluated for thermospheric conditions. They depart significantly from a Maxwellian distribution at high energies.

📜 SIMILAR VOLUMES

Measurements of electron attachment, rec

Measurements of electron attachment, recombination, elastic and inelastic collisions in atmospheric gases

✍ M.A. Biondi 📂 Article 📅 1961 🏛 Elsevier Science 🌐 English ⚖ 821 KB

Energy studies of atomic atmospheric ion

Energy studies of atomic atmospheric ions in collisions with molecular nitrogen and oxygen

✍ C. S. Enos; A. R. Lee; A. G. Brenton 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 436 KB

Studies of internal energy changes between the partners in ion-molecule collisions can be facilitated by highresolution translational energy spectroscopy. Collisions of keV H', N + and 0' on molecular nitrogen and oxygen have shown that for 30 reaction channels all are consistent with spin conservat

Measurements of inelastic cross sections

Measurements of inelastic cross sections for the (j,m) = (2,0)→(3,0) rotational transition of CsF in collisions with atoms and molecules

✍ U. Borkenhagen; H. Malthan; J.P. Toennies 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 296 KB

Individual state-?-to-state rotational transitions have been resolved in small angle scattering of po!arized CsF molecules on Ne, Ar, Cz Hg. Nz. CO, COz. CHFS at center of mass energies of about 0.1 eV. The absolute inelastic cross sections range from 5 A up to 600 A2 \_ Most cf our knowledge oi ine

The formation and destruction of highly

The formation and destruction of highly excited helium atoms in 4–25 keV collisions with the rare gases and simple molecules

✍ H.A.G. Silim; C.J. Latimer 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 464 KB

The semiquantal theory of heavy particle

The semiquantal theory of heavy particle inelastic collisions with neutral atoms and molecules. II. Thermal, intermediate, and high-energy collisions: M. R. Flannery. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332

📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 84 KB

Inelastic collisions between excited alk

Inelastic collisions between excited alkali atoms and molecules X. Temperature dependence of cross sections for 2P12↔2P32 mixing in cesium, induced in collisions with deuterated hydrogens, ethanes, and propanes: E Walentynowicz et al, Can J Phys, 52 (7), 1974, 589–591

📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 190 KB