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Electron Capture And Ionization Cross Sections For Collisions Of He With Li Production Of He 3l At Low Velocities
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Book Synopsis Electron Capture and Ionization Cross Sections for Collisions of He(++) with Li: Production of He(+)(3l) at Low Velocities by : E. J. Shipsey
Download or read book Electron Capture and Ionization Cross Sections for Collisions of He(++) with Li: Production of He(+)(3l) at Low Velocities written by E. J. Shipsey and published by . This book was released on 1978 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single electron capture and ionization cross sections have been calculated for collisions of He(++) with Li over the relative collision velocity range 0.1-10.0 x 10 to the 8th power cm/sec. For low collision velocities (i.e., v = 0.1-0.6 x 10 to the 8th power cm/sec), a molecular approach has been used to determine the electron capture cross section. Ab initio potential energy curves and coupling matrix elements have been computed for the (HeLi)++ system and used in a cross section evaluation based on the perturbed-stationary-state method. For the low velocities, the electron capture reaction He(++) + Li yields He+(3l) + Li(+) is found to dominate the collision process and proceeds with a large cross section, sigma approximately 10 to the minus 15th power sq cm, thus providing the possibility for population inversion and the subsequent emission of Lyman-alpha (304 A) and Lyman-beta (256 A) soft x-ray photons. At the higher velocities (i.e., v=1.4-10.0 x 10 to the 8th power cm/sec), a classical-trajectory Monte-Carlo method has been used to estimate both the electron capture and ionization cross sections. At 2.2 x 10 to the 8th power cm/sec, both cross sections are found to be equal, while one ionization dominates the collision process at higher velocities and electron capture dominates at lower velocities.
Book Synopsis Experimental Electron Capture Cross Sections in Collisions of Highly-charged Low-velocity Rare Gas Ions with Lithium Atoms by : William Tracy Waggoner
Download or read book Experimental Electron Capture Cross Sections in Collisions of Highly-charged Low-velocity Rare Gas Ions with Lithium Atoms written by William Tracy Waggoner and published by . This book was released on 1983 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic and Molecular Collision Cross Sections of Interest in Controlled Thermonuclear Research by : C. F. Barnett
Download or read book Atomic and Molecular Collision Cross Sections of Interest in Controlled Thermonuclear Research written by C. F. Barnett and published by . This book was released on 1961 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Collisions of H, H2, He and Li Atoms and Ions with Atoms and Molecules by : C. F. Barnett
Download or read book Collisions of H, H2, He and Li Atoms and Ions with Atoms and Molecules written by C. F. Barnett and published by . This book was released on 1990 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cross Sections for Positive-ion and Electron Production in Collisions of 1-25 KeV Hydrogen Atoms with Atomic and Molecular Gases by : David C. Clark
Download or read book Cross Sections for Positive-ion and Electron Production in Collisions of 1-25 KeV Hydrogen Atoms with Atomic and Molecular Gases written by David C. Clark and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross sections are reported for production of positive ions and electrons in collisions of hydrogen atoms in the energy range 1-25 keV with He, Ne, A, Kr, Xe, H2, and O2. Slow, positive ions are produced by capture of an electron by the fast atom from the target gas and by ionization of the target. Electrons are produced by target gas ionization and by stripping of the fast atom. Ionization cross sections for each of the target gases are derived from the positive ion production cross sections and previous measurements of the capture cross sections. (Author).
Book Synopsis Ionization and Charge Transfer Cross Sections by : Earl Wadsworth McDaniel
Download or read book Ionization and Charge Transfer Cross Sections written by Earl Wadsworth McDaniel and published by . This book was released on 1962 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics Division Annual Report by : Argonne National Laboratory. Physics Division
Download or read book Physics Division Annual Report written by Argonne National Laboratory. Physics Division and published by . This book was released on 1998 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculation of Single-electron Capture Cross Sections by Ions H+, He+2, Li+3 on Collision with Light Atoms in the Framework of Continuum Intermediate States Approximation by : A. P. Kovač
Download or read book Calculation of Single-electron Capture Cross Sections by Ions H+, He+2, Li+3 on Collision with Light Atoms in the Framework of Continuum Intermediate States Approximation written by A. P. Kovač and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Atomic Collision Cross Sections by : R. F. Stebbings
Download or read book Measurement of Atomic Collision Cross Sections written by R. F. Stebbings and published by . This book was released on 1964 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of Lyman-alpha radiation in H(+) -H (1s) collisions has been investigated. The cross sections for 1s-2p excitation of the thermal-energy-target H atoms, and for electron capture into the 2p state of the projectiles, have been determined separately. These measurements are of particular significance in that they provide experimental information on a heavy-particle inelastic collision, involving only one electron, in which the states of all interacting particles are determined. Comparison with the results of calculation subjects the validity of the scattering approximations to direct scrutiny. It appears that the low energy behavior for both excitation and capture is adequately represented by theory as is the highenergy behavior for electron capture. The calculations appear to over-estimate the cross section for 1s-2p excitation by about a factor of 2 at the high energies. Electron impact ionization of molecular oxygen was investigated in the immediate vicinity of threshold using electron beams of high energy-resolution. The results suggest that a re-evaluation of the mechanism of the ionizing process may be necessary.
Book Synopsis Bibliography of Low Energy Electron Collision Cross Section Data by : Lee Joseph Kieffer
Download or read book Bibliography of Low Energy Electron Collision Cross Section Data written by Lee Joseph Kieffer and published by . This book was released on 1967 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bibliography of low energy electron collision cross section data is prese * nted.Only references which report original measurements or calculations of electron collision cross sections are included.The cross section data for each process are listed by atomic species in order of their atomic number.The data for molecules are listed in arbitrary order. (Author).
Book Synopsis Electron Capture and Loss Cross Sections for Collisions Between Heavy Ions and Hydrogen Molecules by :
Download or read book Electron Capture and Loss Cross Sections for Collisions Between Heavy Ions and Hydrogen Molecules written by and published by . This book was released on 1981 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Collision Cross Sections for Few Electron Systems. Final Report, August 1, 2992--July 31, 1995 by :
Download or read book Collision Cross Sections for Few Electron Systems. Final Report, August 1, 2992--July 31, 1995 written by and published by . This book was released on 1995 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project was to produce accurate cross sections for collisionally induced reactions from the ground stated and excited states of species of ions and at present in a hot fusion plasma. The collisional constituents may be divided into two categories for the purpose of calculations: Those in which a bare projectile excites a one electron or two electron ion or atom from its ground state, or excited states to higher excited states or ionized states. Those in which the projectile has one or more electrons attached to it and excites a one electron or two electron ion or atom from its ground state, or excited states to higher excited states or ionized states. During the collision the projectile itself may change its state being simultaneously excited or ionized. Cross sections are needed typically over the whole energy range from low velocities where molecular, orbitals begin to form to high velocities where first Born or more sophisticated asymptotic theories can be used. These high energy cross sections are very useful for experimentalists to check the absolute normalization of their cross sections. The theoretical tools used were therefore both analytical and numerical in character. Numerical calculations were restricted to expansions of the wavefunctions in a set of finite hilbert basis states (FHBS). The many body aspects of the problem, i.e. the important presence of the interelectron force, or correlation mandate a careful systematic approach. But this section was tempered in our strategy by the fact that many of the cross sections needed, especially from excited states, have never been calculated or measured at all. Thus any information we can provide is useful even if later work may modify our results.
Book Synopsis Electron Capture in Ion-atom Collisions at Intermediate Energies by : Thomas Gustav Winter
Download or read book Electron Capture in Ion-atom Collisions at Intermediate Energies written by Thomas Gustav Winter and published by . This book was released on 1972 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cross Sections for Electron Capture and Ionization in Collisions of Fusion Plasma Impurity Ions with Atomic Hydrogen by :
Download or read book Cross Sections for Electron Capture and Ionization in Collisions of Fusion Plasma Impurity Ions with Atomic Hydrogen written by and published by . This book was released on 1993 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Topics in Electron Capture by Fast Ions by : Shiang Her Hsin
Download or read book Topics in Electron Capture by Fast Ions written by Shiang Her Hsin and published by . This book was released on 1987 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Angular Distributions of Differential Electron Capture Cross Sections in Collisions Between Low-velocity Highly-charged Ions and Neutral Targets by : William Tracy Waggoner
Download or read book Angular Distributions of Differential Electron Capture Cross Sections in Collisions Between Low-velocity Highly-charged Ions and Neutral Targets written by William Tracy Waggoner and published by . This book was released on 1990 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
