Program History

CasP version 6.0 (November 2020)

Better description of the valence electrons according to the IDA and TCS models in Physical Review A, 94, 042704 (2016) and J. Phys. B At. Mol. Opt. Phys., 50,185201 (2017)
Command line version (Windows/Mac/Linux) from input CasP.ini file

CasP version 5.2 (December 2013)

Capture was added for charge-equilibrium conditions according to the model in Physical Review A84, 052703 (2011)
Small improvements in the GUI for compounds

CasP version 5.0 (April 2011)

Momentum distributions from Bessel-Fourier transform of HFS wave functions stored in dens.TAB
Improved storage of electronic densities in dens.TAB
Use of HFS momentum distributions to implement shell-corrections in neutral targets
Use of hydrogen-like momentum distribution (with effective charges from the virial theorem) to implement shell corrections in ionized targets
Charge-state scan option is default
Improved shell corrections with "forced shell corrections re-normalization"
Improved electron-loss contribution by using a kinematical suppression for high-energy ionization
Zeff for the UCA scaling changed to "Original"
"Get lineshape parameters option" (for head-on collisions) does not use renormalized shell corrections

CasP version 4.1 (Dezember 2009)

CasP version 4.0 (July 2008)

Modification on how BLOCH and SHELL CORRECTIONS are implemented
Internal charge number for the UCA scaling for screened projectiles was improved
Close collision function h was replaced by an accurate fit formula
Improved accuracy for deeply bound inner shell by introducing new gridding
Improvement of a model for the energy-loss spreading at b =0 (output in lineshape.dat)
Inclusion of the BARKAS EFFECT for close non-Coulombic collisions
Possible direct selection of the projectile charge-state
Speed up of stopping cross-section calculations

CasP version 3.2 (April 2007)

Improved relativistic correction accounting now for the impact-parameter dependence.
New: projectile-electron loss (energy losses due to projectile ionization and excitation) option now also for compounds
New MEIS energy-loss parameter output (in ASCII data file ’lineshape.dat’).

CasP version 3.1 (August 2004)

Implementation of extended Bragg’s additivity rule for compounds.
New solid/gas target selection.
Improved accuracy for the kernel integration in the case of K shells of very heavy atoms such as Uranium.

CasP version 3.0 (April 2004)

CasP version 2.2 (March 2004)

Slightly improved fit formulas with shell effects for projectile charge-states in gases (uncertainty is now reduced from dq = 0.48 to 0.46 charge units and from 2.6% to 2.3%)
Improved accuracy for CHARGE-STATE SCAN option (depends now on accuracy parameter) and, thanks to H.Paul, bug for light ions (H, He) is removed

CasP version 2.1 (December 2003)

New projectile-electron loss (energy losses due to projectile ionization and excitation) option
Improved fit formulas with shell effects for projectile charge-states in solids (uncertainty is now reduced from dq = 0.54 to 0.28 charge units and from 2.3% to 1.6%)
Improved accuracy for CHARGE-STATE SCAN option
Improved periodic table for projectile/target selection

CasP version 1.2 (October 2001)

New projectile charge-state and screening options:
CHARGE-STATE SCAN for equilibrium energy losses
GENERAL projectile screening for non-equilibrium energy losses (scaled DHFS potential)
Minor changes for output and data storage (STORE electron density)

CasP version 1.1 (October 2000)

CasP version 1.0 (March 2000)

CasP beta-version 1.0 (January 2000)

(pre CasP ages)