Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • PACS. 34.50.Bw Energy loss and stopping power - 61.85.+p Channeling phenomena (blocking, energy loss, etc.) - 52.40.Mj Particle beam interactions in plasma  (3)
  • 61.80  (1)
  • 96.60 Vg  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Depth of origin of sputtered atoms (1981)
    Springer
    Applied physics 25 (1981), S. 307-310 
    Details
    ISSN: 1432-0630
    Keywords: 79.20 ; 68.55 ; 61.80 ; 34
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Estimates are given for the distribution of the depth of origin of sputtered atoms in the low-fluence limit, as well as the corresponding distribution of atoms sputtered into a given energy interval. The former distribution is well described by an exponential profile, with the characteristic depth being consistent with previous results. The latter distribution is characterized by an energy-dependent depth scale and a shape that varies from exponential at low sputtered-atom energies to inverse-power form at higher energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902988
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A note on evaporation from heated spikes (1984)
    Springer
    Applied physics 35 (1984), S. 19-25 
    Details
    ISSN: 1432-0630
    Keywords: 44.30+v ; 61.80 Jh ; 79.20 Nc ; 96.60 Vg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We have investigated the effect of heat loss through evaporation on the surface temperature profile and the evaporation yield of an ion-induced spike. We derive a three-dimensional extension of a nonlinear integral equation first found by Mann and Wolf to describe the temperature profile in a semiinfinite medium in the presence of heat loss through the surface. The equation has been solved by perturbation expansion in powers of the evaporation rate. For heavy-ion induced, cylindrical elastic-collision spikes, noticeable but moderate corrections are found to evaporation yields estimated previously by neglecting heat loss due to evaporation. These results are relevant mainly to sputtering of metals by heavy atomic and molecular ion bombardment. Comments are also made on sputting of insulators both by heavy keV ions and by ionizing particles. Expressions for an effective sputter time and sputter area are derived for cylindrical geometry; both quantities turn out independent of the initial spike temperature. The sputter radius is normally greater than the depth of the crater formed; we conclude that the influence of crater formation on the evaporation yield is normally negligible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620295
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Shell correction in Bohr stopping theory (2000)
    Springer
    The European physical journal 12 (2000), S. 111-116 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 34.50.Bw Energy loss and stopping power - 61.85.+p Channeling phenomena (blocking, energy loss, etc.) - 52.40.Mj Particle beam interactions in plasma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The shell correction is a term in the electronic-stopping force on a charged particle, where denotes the speed of a target electron. This term has been evaluated as a function of impact parameter within the scheme underlying Bohr's classical stopping theory, applying free-Coulomb scattering to close and a multipole expansion to distant interactions. Unlike the leading term in the stopping force, the shell correction is dominated by contributions from close collisions, and its magnitude differs from that found from the Bethe theory. Findings are also compared with the predictions of kinetic theory. Implications are mentioned on the stopping of swift heavy ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530070045
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Binary stopping theory for swift heavy ions (2000)
    Springer
    The European physical journal 12 (2000), S. 425-434 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 34.50.Bw Energy loss and stopping power - 61.85.+p Channeling phenomena (blocking, energy loss, etc.) - 52.40.Mj Particle beam interactions in plasma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The Bohr theory treats charged-particle stopping as a sequence of interactions with classical target electrons bound harmonically to their equilibrium positions. We demonstrate that equivalent results can be derived on the assumption of free binary collisions governed by a suitable effective potential. This kind of mapping is rigorous in the limits of distant and close collisions and therefore provides a tool to evaluate energy losses via binary-scattering theory. This model was developed with the aim of calculating stopping forces for heavy ions at moderately high velocities, where a classical-orbital calculation is typically superior to the Born approximation. The effective potential employed holds equally well for dressed as for stripped ions. Unlike the Bohr theory, the present evaluation avoids a formal division into regimes of close and distant collisions that do not necessarily join smoothly. Moreover, no perturbation expansion is necessary. For these reasons the overall accuracy as well as the range of validity of the Bohr model are significantly enhanced. Extensive tests have been performed, including comparisons with rigorous evaluations of the Z 1 3 effect, with excellent agreement even where such was not necessarily expected. Moreover, credible results have been obtained under conditions where the perturbation expansion shows poor convergence. A comparison with experimental data on O–Al is encouraging, even though shell corrections and projectile excitation/ionization have not yet been incorporated and input has not yet been optimized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530070004
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Binary stopping theory for swift heavy ions (2000)
    Springer
    The European physical journal 12 (2000), S. 425-434 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 34.50.Bw Energy loss and stopping power - 61.85.+p Channeling phenomena (blocking, energy loss, etc.) - 52.40.Mj Particle beam interactions in plasma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The Bohr theory treats charged-particle stopping as a sequence of interactions with classical target electrons bound harmonically to their equilibrium positions. We demonstrate that equivalent results can be derived on the assumption of free binary collisions governed by a suitable effective potential. This kind of mapping is rigorous in the limits of distant and close collisions and therefore provides a tool to evaluate energy losses via binary-scattering theory. This model was developed with the aim of calculating stopping forces for heavy ions at moderately high velocities, where a classical-orbital calculation is typically superior to the Born approximation. The effective potential employed holds equally well for dressed as for stripped ions. Unlike the Bohr theory, the present evaluation avoids a formal division into regimes of close and distant collisions that do not necessarily join smoothly. Moreover, no perturbation expansion is necessary. For these reasons the overall accuracy as well as the range of validity of the Bohr model are significantly enhanced. Extensive tests have been performed, including comparisons with rigorous evaluations of the Z 1 3 effect, with excellent agreement even where such was not necessarily expected. Moreover, credible results have been obtained under conditions where the perturbation expansion shows poor convergence. A comparison with experimental data on O–Al is encouraging, even though shell corrections and projectile excitation/ionization have not yet been incorporated and input has not yet been optimized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530070004
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...