5 |
Manuscripts |
|
|
|
|
502 |
"High energy limit
of photon-atom interactions: example of double ionization of He by photoabsorption",
R. H. Pratt, E. G. Drukarev, and T. Suric, published by World
Scientific in Proceedings of the Conference on Frontiers of Physics. |
|
513 |
"Qualitative modification
of the high energy atomic photoionization cross section", M. Ya Amusia,
N. B. Avdonina, E. G. Drukarev, S. T. Manson, and R. H. Pratt, published
Phys. Rev. Lett. 85, 4703-6 (Nov 27 00). |
|
514 |
"Results on bremsstrahlung
from thick targets, and new diagnostic for electron energy distribution",
M. Lamoureux, P. Waller, P. Charles, and N. B. Avdonina, published
Phys.
Rev. E 62, 4091-4095 (2000). |
|
517 |
"Photon-polarization effects
and their angular dependence in relativistic two-photon bound-bound transitions",
N. L. Manakov, A. V. Meremianin, A. Maquet, and J. P. J. Carney, published
J
Phys B. 33, 4425-4446 (2000). |
|
519 |
"Existence of near-minima
in elastic photon-atom scattering", J. P. J. Carney and R. H. Pratt, for
publication in J. Rad. Phys. Chem. |
|
520 |
"Circumstances in which radiation
is not absorbed, forbidding photoionization: Four classes of matrix element
zeroes", L. A. LaJohn and R. H. Pratt, for publication in J. Rad. Phys.
Chem. |
|
521 |
"Ionization of an atom by
photoabsorption at high photon energies: Unified view in terms of singularities
of the Coulombic potential", T. Suric and R. H. Pratt, for publication
in J. Rad. Phys. Chem. |
|
522 |
"Correlation effects in the
energy spectrum of fast outgoing electrons from double ionization of helium",
E. G. Drukarev, N. B. Avdonina, and R. H. Pratt, submitted to J. Phys.
B. |
|
523 |
"Understanding the importance
of dynamic, correlation, and exchange effects in new low-energy photon
scattering experiments", J. P. J. Carney and R. H. Pratt, for publication
in AIP Proceedings (CAARI). |
|
524 |
"Structures in the energy
dependence of classical and quantum bremsstrahlung", A. Florescu, O. I.
Obolensky, C. D. Shaffer, and R. H. Pratt, for publication in AIP Proceedings
(CAARI). |
|
525 |
"The approach to asymptotic
behavior in photoionization", R. H. Pratt and T. Suric. For publication
in Journal Chinese Chemical Society |
8 |
Recent
Papers |
|
|
|
|
|
a |
Pratt |
"Exact relativistic calculation
with retardation of hydrogenic photoeffect matrix elements:", FoundPhys
30, 1283 (Aug 00), Boudet & Blaive |
|
b |
LaJohn |
"Relativistic hydrogen atom
revisited", AJP 68, 1050 (Nov 00), Martinex-y-Romero |
|
c |
Pratt |
(gamma, 2e) in He - practical
parametrization of triple differential cross section", JPB 33, 4691 (Nov
14 00), Cvejanovic & Reddish |
|
d |
Pratt |
"Absolute differential cross
sections for photo double ionization of he from hyperspherical R matrix
method", PRL 85, 4450 (Nov 20 00), Malegat, Selles, Kazonsky |
9 |
Review
of Literature: |
|
|
|
|
|
a |
Pratt |
"Compton scattering
by nuclei", Phys.Rpts 323, 457 (Jan 00), Hutt, L'vov, Milstein, Schumacher |
|
b |
Pratt |
"Theory of two
electron atoms: between ground state & complete fragmentation", RMP
72, 467 (April 00) Tannet, Richter, Rust |
|
c |
Pratt |
"Electron-electron
Thomas peak in fast transfer ionization", PRA 62, -32711 (Sept 00) Tolmanov
& McGuire |
|
-
d
|
-
Pratt
|
"Impact-parameter dependence
of the relativistic photoeffect and other high-energy photo processes",
Sorensen (Aarhus) |
|
e |
Obolensky |
"Limitations
due to spontaneous emission of low frequency photons on applicability of
Newtonian description", JETP 91, 658 (Oct 2000) Gersenshtein & Kravtsuv |
11 |
Manuscripts in
Preparation |
|
|
|
|
a |
"Polarization correlations
for d,f states", Kim, Goldberg, Pratt |
|
b |
"Observables in quantum mechanics:
creating spin polarization in the absence of spin orbit interactions",
Young Soon Kim and R. H. Pratt |
|
c |
"Ionization of two-electron
atoms by photoabsorption at high photon energies: A view in terms of singularities
of the electron-nucleus and electron-electron Coulombic potential", T.
Suric, R. H. Pratt and E. G. Drukarev |
|
d |
"Multipole decomposition
of atomic form factors", L. A. LaJohn and R. H. Pratt |
|
e |
"Multichannel coupling and
the high energy limit of the photoionization process", E. Drukarev, N.
Avdonina, and R. H. Pratt |
|
f |
"Experiment and theory for
the total x-ray scattering from atomic neon and helium from 4 to 15 keV:
corrections to the usual scattering factors", L. Young, R. W. Dunford,
E. P. Kanter, B. Krassig, S. H. Southworth, R. A. Bonham, P. Lykos, C.
Morong, A. Timm, J. P. J. Carney and R. H. Pratt. |
|
* |
Also considered:
bremsstrahlung review (Quarles), Linear response (Florescu), recursion
relations (Bronson), semi-relativistic Rayleigh (Costescu, Bergstrom),
AFT review (Suric), photoeffect review (Kim) |
12 |
Work in Progress |
|
|
|
|
-
Avdonina
|
double photoionization, GOS
beyond Born & zeroes |
|
Carney |
Z-dependence of scattering,
scatt in Neon |
|
Drukarev |
angular double ioniz, qfm
triple & double dist, qfm for ioniz of 2p neon |
|
A. Florescu |
classical bremsstrahlung,
relativistic zeroes |
|
V. Florescu |
retarded & relativistic
zeroes |
|
Kim (YS) |
retarded zeroes, qm observables |
|
Lajohn |
independent information in
Rayleigh scattering, bremsstrahlung, rel zeroes |
|
Suric |
Compton, double/single in
Compton, photo, AFT in scattering |
13 |
Code Library |
|
|
|
The computers
primarily available for use are the group's own Sun UNIX workstations.
There is also the VAX system operated by the Computing and Information
Systems (CIS) department, but this system tends to have older versions
of the codes, and new users will find more help available if they are using
the workstations. |
|
In order to run
the codes on local systems, look for executables in the directories: |
|
|
UNIX workstations: /usr/local/atomic/bin |
|
|
VAX system: USR2:[10104.ATOMIC1.EXE] |
|
We encourage
use of the SLATEC numerical library, which contains a wide variety of numerical
algorithms written in FORTRAN. Source code is available in the directories: |
|
|
UNIX workstations: /usr/local/atomic/slatec |
|
|
VAX system: USR3:[PHY.SLATEC] |
|
More information
is available on the group's web site at: |
|
|
http://stribor.phyast.pitt.edu/ |
|
The group has
many books available on various operating systems, languages and software,
which are kept in 325 OEH (also 327 OEH and 222 Allen). This is also the
place to look for hardcopy documentation on the codes. |