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2 edition of Electron scattering from metastable rare gas atoms. found in the catalog.

Electron scattering from metastable rare gas atoms.

Andrew Timothy Cousins

Electron scattering from metastable rare gas atoms.

by Andrew Timothy Cousins

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  • 5 Currently reading

Published by University of Manchester in Manchester .
Written in English


Edition Notes

Thesis (Ph.D.), - University of Manchester, Department of Physics and Astronomy.

ContributionsUniversity of Manchester. Department of Physics and Astronomy.
The Physical Object
Pagination166p.
Number of Pages166
ID Numbers
Open LibraryOL23064180M

Rare gas atoms can form weakly bound molecules, held together by the van-der-Vaals-force. We investigated the ionization/fragmentation-dynamics of He2 and Ne2 caused by ion impact with a COLTRIMS reaction microscope. Dependent on how electrons are removed from the dimer's atomic sites different decay pathways are open. We focus on the following.   Non-thermal plasma is a key component in gas lasers, microelectronics, medical applications, waste gas cleaners, ozone generators, plasma igniters, flame holders, flow control inCited by:

Electron impact excitation of rare-gas atoms from both their ground and metastable states is discussed in the article by Boffard, Jung, Anderson, and Lin. Excitation cross sections measured by the optical method are reviewed with emphasis on the physical interpretation in terms of electronic structure of the target : Paul R Berman. Nuclear Physics Concepts in the Study of Atomic Cluster Physics Fission versus metastable decay series of rare gas cluster ions. T. D. Märk. Pages Electron scattering and electromagnetic response properties of metal clusters. Vitaly V. Kresin. Pages

Midterm-Review, Obergurgl, Austria June 19thth - 23rdrd, Book of Abstracts. 2 Table of Contents The metastable decays of rare gas (Ar, Ne, Kr, Xe, and He) Elastic Electron Scattering with Molecules and Progress Report on Experiments with Biomolecules. Atomic cluster physics has evolved into a research field of truly interdisciplinary character. In particular, it has become apparent that phenomena in atomic nuclei have many analogues in atomic clusters. Increasing the interaction between nuclear and cluster physics can.


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Electron scattering from metastable rare gas atoms by Andrew Timothy Cousins Download PDF EPUB FB2

A molecular beam method was employed to measure ionization cross sections for collisions of metastable helium atoms in various gases. A cylindrical beam of therraal energy metastable atoms, produced by electron bombardment of helium gas, was passed through a scattering chamber containing the.

@article{osti_, title = {Excitation of metastable states of inert-gas atoms by electron impact in the near-threshold energy region}, author = {Zavilopulo, A.N. and Snegurskii, A.V. and Shpenik, O.B. and Kutsina, N.N.}, abstractNote = {An experimental setup is described for a comprehensive investigation of the energy and angular dependences of the formation of.

Krishnakumar and S. Srivastava, Ionization cross sections of rare-gas atoms by electron impact, J. Phys. B (); Cross sections for the production of N 2 +, N + + N 2 2+ and N 2+ by electron impact on N 2, B (); Cross sections for electron impact ionization of O 2, Int.

Mass Proc. 1 (); E. Krishnakumar, A pulsed crossed beam Cited by: 5. Electron scattering from metastable rare gas atoms. book scattering with metastable H*2(c 3Πu) molecules: Ionization and other total cross sections Article (PDF Available) in Journal of Physics B Atomic Molecular and Optical Physics 43( metastable rare gas atoms is the quenching process (via Auger effect in most cases).

This effect is experienced by atoms appro aching a solid at distances short enough to. Electron impact excitation of rare-gas atoms from both their ground and metastable states is discussed in the article by Boffard, Jung, Anderson, and Lin. Excitation cross sections measured by the optical method are reviewed with emphasis on the physical interpretation in terms of electronic structure of the target atoms.

An atom is the smallest constituent unit of ordinary matter that constitutes a chemical solid, liquid, gas, and plasma is composed of neutral or ionized atoms.

Atoms are extremely small; typical sizes are around picometers (1 × 10 −10 m, a ten-millionth of a millimeter, or 1/, of an inch).They are so small that accurately predicting their Components: Electrons and a compact nucleus of.

The 3 P 2 fraction in a collimated, mixed metastable rare-gas beam Rg* (3 P ) from a differentially pumped discharge source is transversely excited by a single-mode cw laser to the 3 D 3 level, from where ionization occurs within the cavity of an argon ion laser (30–60 W at / nm) [41]. The metastable rare gas atoms offer attractive features for the study of interferometric phenomena of atomic waves.

The metastable rare gas atoms, whose excited state energies exceed several electronvolts, can be detected with high quantum efficiency by conventional particle detectors. Atoms (ISSN ; CODEN: ATOMC5) is an international, peer-reviewed and cross-disciplinary scholarly journal of scientific studies related to all aspects of the atom published quarterly online by MDPI.

Open Access free for readers, with article processing charges (APC) paid by authors or their institutions.; High Visibility: Indexed in the Emerging Sources Citation. In the case of argon cluster ions it leads to evaporation of up to 10 monomers in the Its time regime.

It is shown that this fragmentation is initiated by the radiative decay of a metastable excimer embeded in the cluster ion. Formation of the excimer is induced by multiple electron scattering within the by: 2. Another approach for insertion of noble gas atoms into fullerenes was discovered by Saunders, Cross, and co-workers–32They heated fullerenes in a high pressure of the rare gas of interest, and rare gas atoms are incorporated into a small fraction ~up to ;%.

of the fullerenes. These rare gas endohedral complexes are chemically stable and canFile Size: KB. The scattering of the metastable helium atoms in the beam is observed by measuring the electron current ejected by the excited atoms when they arrive at metal detector surfaces.

Both elastic and inelastic collisions of the excited atoms take place. Penning ionization is a form of chemi-ionization, an ionization process involving reactions between neutral atoms or molecules.

The Penning effect is put to practical use in applications such as gas-discharge neon lamps and fluorescent lamps, where the lamp is filled with a Penning mixture to improve the electrical characteristics of the lamps.

"Automatic Generation of Analytical Matrix Elements for Electron-Atom Scattering", "Cross Sections for Ionization of Metastable Rare Gas Atoms (Ne*, A*, Kr*, Xe*) School of Physics Georgia Institute of Technology State Street Atlanta, Georgia A conversion cell operating either with rare gas or alkali vapor (to convert rare gas ions into ground or metastable neutral atoms, respectively) was designed, built and tested.

An ion current of about 30 pAmp, depending on ion species, was introduced into the converter and conversion to neutral atoms achieved. A neutralAuthor: V. McKoy, S. Trajmar. Electron impact ionization of atoms and molecules in ground/metastable states is discussed comprehensively.

The text covers electron scattering phenomena for diatomic and common molecules, polyatomic molecules and radicals including hydro-carbons, fluoro-carbons and other larger molecules together with relevant radical species in detail.

Publications • Present - • - • - • Low-pressure source of slow metastable rare gas atoms. van der Velden, H Measurement of the coherence parameters for the electron impact excitation of the 31D state of helium at small electron scattering angles.

Batelaan, J. van Eck and H. The recent progress in experimental studies of laser-assisted electron scattering (LAES) induced by ultrashort intense laser fields is reviewed. After a brief survey of the theoretical backgrounds of the LAES process and earlier LAES experiments started in the s, new concepts of optical gating and optical streaking for the LAES processes, which can be realized by LAES Author: Reika Kanya, Kaoru Yamanouchi.

Volume 54 of the Advances Series contains ten contributions, covering a diversity of subject areas in atomic, molecular and optical physics.

The article by Regal and Jin reviews the properties of a Fermi degenerate gas of cold potassium atoms in the crossover regime between the Bose-Einstein condensation of molecules and the condensation of fermionic atom pairs.

Prof. Dr. Tilmann D. Märk - List of Publications Publications in refereed journals, books, bookchapters ( - ) Fission versus metastable decay series of rare gas cluster ions, In: Nuclear Physics concepts in Atomic Cluster Physics (R.

Schmidt, H.O. Lutz, R. Dreizler,Eds.) Springer () Mechanisms and kinetics of electron.Inelastic Particle-Surface Collisions Proceedings of the Third International Workshop on Inelastic Ion-Surface Collisions Feldkirchen-Westerham, Fed.

Rep. of Germany September 17–19,   Electron Collisions with Laser Cooled and Trapped Metastable Helium Atoms: Total Scattering Cross Sections Physical Review Lett 17 () Download full publication (PDF MB).