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[Licence| Download | New Version Template] adji_v1_0.tar.gz(65 Kbytes)
Manuscript Title: Ion-Atom-wave - calculation of single ionization cross sections in ion-atom collisions.
Authors: B.S. Nesbitt, S.F.C. O'Rourke, D.S.F. Crothers
Program title: Ion-Atom-Wave
Catalogue identifier: ADJI_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 114(1998)385
Programming language: Fortran.
Computer: PC 4x200MHz Pro Pentiums.
Operating system: Redhat Linux 4.2, Digital Open VMS 6.2, Unix 4.0a.
RAM: 100K words
Word size: 32
Keywords: Single ionization, Total differential cross, Section, Single differential, Cross section, Double differential, Cross section, Continuum distorted wave, Eikonal-initial-state, Model, Molecular/atomic, Hydrogen-like target, Helium-like target, Wave treatment, Scattering, Elastic.
Classification: 16.7.

Nature of problem:
The program calculates total, single and double differential cross sections for the single ionization of hydrogen-like atoms/molecules and helium-like atoms by light-or-heavy-ion impact, where the projectile ions are assumed to be structureless.

Solution method:
The program allows the user to calculate cross sections using the CDW or CDWW-EIS [1] approximations within the wave treatment. The cross sections are evaluated using the QUADPACK subroutines QAGE, QK15 and QK61 [2].

Running time:
Times vary according to input data. The average time taken to evaluate the double differential cross section for eight points of energy is 23 seconds, while using only one processor takes approximately 65 seconds.

[1] D.S.F. Crothers and J.F. McCann, J. Phys. B 16 (1983) 3229.
[2] R. Piessens, E. de Doncker-Kapenga, C.W. Uberhuber and D.K. Kahane, QUADPACK, A Subroutine Package for Automatic Integration, Springer Series in Comp. Math. 1, Springer-Verlag, New York (1983). QUADPACK is freely available at www.netlib.org or at the UK mirror, www.hensa.ac.uk/cgi-bin/cftp/unix.hensa.ac.uk/mirrors/netlib.