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The Calculation Of High Energy Electron Capture Cross Sections Using The Continuum Distorted Wave Cdw And Continuum Intermediate States Cis Methods
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Book Synopsis The Calculation of High Energy Electron-capture Cross-sections Using the Continuum Distorted Wave (CDW) and Continuum Intermediate States (CIS) Methods by : G. W. Shirtcliffe
Download or read book The Calculation of High Energy Electron-capture Cross-sections Using the Continuum Distorted Wave (CDW) and Continuum Intermediate States (CIS) Methods written by G. W. Shirtcliffe and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Atomic and Molecular Physics by :
Download or read book Advances in Atomic and Molecular Physics written by and published by Academic Press. This book was released on 1983-11-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Atomic and Molecular Physics
Book Synopsis Atomic and Molecular Physics of Controlled Thermonuclear Fusion by : Douglass E. Joachain
Download or read book Atomic and Molecular Physics of Controlled Thermonuclear Fusion written by Douglass E. Joachain and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for long-term energy sources, in particular for our highly technological society, has become increasingly apparent during the last decade. One of these sources, of tremendous poten tial importance, is controlled thermonuclear fusion. The goal of controlled thermonuclear fusion research is to produce a high-temperature, completely ionized plasma in which the nuclei of two hydrogen isotopes, deuterium and tritium, undergo enough fusion reactions so that the nuclear energy released by these fusion reactions can be transformed into heat and electricity with an overall gain in energy. This requires average kinetic energies for the nuclei of the order of 10 keV, corresponding to temperatures of about 100 million degrees. Moreover, the plasma must remain confined for a certain time interval, during which sufficient energy must be produced to heat the plasma, overcome the energy losses and supply heat to the power station. At present, two main approaches are being investigated to achieve these objectives: magnetic confinement and inertial con finement. In magnetic confinement research, a low-density plasma is heated by electric currents, assisted by additional heating methods such as radio-frequency heating or neutral beam injection, and the confinement is achieved by using various magnetic field configurations. Examples of these are the plasmas produced in stellarator and tokamak devices.
Book Synopsis Asymptotic Form of the Electron Capture Cross Section in First Born and Distorted Wave Approximations by : R. A. Mapleton
Download or read book Asymptotic Form of the Electron Capture Cross Section in First Born and Distorted Wave Approximations written by R. A. Mapleton and published by . This book was released on 1964 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first Born approximation with both the proton-proton and proton-electron interaction is used to calculate the high energy electron capture cross section. It is shown that the high energy proton-nucleus amplitude has a dominant peak for backward scattering (centre-of-mass system). As a consequence of this peak, if the protons are treated as distinguishable particles, the cross section depends upon the impact energy E as E(3- ) in contrast to the commonly accepted E(6- ) dependence. When the protons are treated as indistinguishable particles, the electron capture cross section is not defined at sufficiently high energies. This same cross section is also calculated using the distorted wave approximation as developed by Bassel and Gerjuoy in 1960. It is shown that the proton-nucleus amplitude is only cancelled in the forward direction, and consequently the electron capture cross section is again not defined at high energies. (Author).
Download or read book INIS Atomindex written by and published by . This book was released on 1984 with total page 1858 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:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992 with total page 1030 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 1991 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Overview of Relativistic Distorted-wave Cross Sections by :
Download or read book An Overview of Relativistic Distorted-wave Cross Sections written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past twenty years significant progress has been made in calculating the vast amounts of relativistic atomic data that are required to model heavy element, non-LTE plasmas. A number of the relevant processes, including electron-impact excitation, photoionization, autoionization and electron-impact ionization, involve the computation of continuum electron wavefunctions. If the plasma consists of ions with sufficiently high charge, then the distorted-wave approximation is valid and can be used to compute these continuum orbitals and the corresponding cross sections. An overview of the relativistic distorted-wave approach is provided with an aim toward underscoring the similarities and differences with the longer established, nonrelativistic and semi-relativistic approaches. An example for extending the distorted-wave approach to less highly charged systems via the inclusion of resonance contributions to the cross sections is provided. Related topics, such as the top-up contribution, the high energy (Bethe) cross section limit, the Breit and Moller interactions, and transitions among magnetic sublevels are also discussed.
Book Synopsis Absolute Cross Sections for Electron Loss to the Continuum by : K. F. Man
Download or read book Absolute Cross Sections for Electron Loss to the Continuum written by K. F. Man and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis British Reports, Translations and Theses by : British Library. Lending Division
Download or read book British Reports, Translations and Theses written by British Library. Lending Division and published by . This book was released on 1983 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis British Reports, Translations and Theses by : British Library. Document Supply Centre
Download or read book British Reports, Translations and Theses written by British Library. Document Supply Centre and published by . This book was released on 1983 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issue for Mar. 1981 contains index for Jan.-Mar. 1981 in microfiche form.
Book Synopsis Calculated Cross Sections for Atomic Displacements Produced by Electrons in the 1.0-3.0 MeV Energy Range by : Edward A. Burke
Download or read book Calculated Cross Sections for Atomic Displacements Produced by Electrons in the 1.0-3.0 MeV Energy Range written by Edward A. Burke and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index to Theses Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards by :
Download or read book Index to Theses Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1984 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 A Rapid Relativistic Distorted Wave Approach for Calculating Cross Sections for Ionization of Highly Charged Ions by :
Download or read book A Rapid Relativistic Distorted Wave Approach for Calculating Cross Sections for Ionization of Highly Charged Ions written by and published by . This book was released on 1990 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid relativistic distorted wave method of Zhang et al for excitation, which uses the atomic structure data of Sampson et al, has been extended to ionization. In this approach the same Dirac-Fock-Slater potential evaluated using a single mean configuration is used in calculating the orbitals of all electrons bound and free. Values for the cross sections Q for ionization of various ions have been calculated and generally good agreement is obtained with other recent relativistic calculations. When results are expressed in terms of the reduced ionization cross section Q{sub R}, which is proportional to I2Q, they are close to the non-relativistic Coulomb-Born-Exchange values of Moores et al for hydrogenic ions except for high Z and/or high energies. This suggests that fits of the Q{sub R} to simple functions of the impact electron energy in threshold units with coefficients that are quite slowly varying functions of an effective Z can probably be made. This would be convenient for plasma modeling applications. 24 refs., 2 tabs.
Book Synopsis Asymptotic Form of the Electron Capture Cross Section in First Born and Distorted Wave Approximations by : R. A. Mapleton
Download or read book Asymptotic Form of the Electron Capture Cross Section in First Born and Distorted Wave Approximations written by R. A. Mapleton and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first Born approximation with both the proton-proton and proton-electron interaction is used to calculate the high energy electron capture cross section. It is shown that the high energy proton-nucleus amplitude has a dominant peak for backward scattering (centre-of-mass system). As a consequence of this peak, if the protons are treated as distinguishable particles, the cross section depends upon the impact energy E as E(3- ) in contrast to the commonly accepted E(6- ) dependence. When the protons are treated as indistinguishable particles, the electron capture cross section is not defined at sufficiently high energies. This same cross section is also calculated using the distorted wave approximation as developed by Bassel and Gerjuoy in 1960. It is shown that the proton-nucleus amplitude is only cancelled in the forward direction, and consequently the electron capture cross section is again not defined at high energies. (Author)
