BSR is a general program to calculate atomic continuum processes using the B-spline R-matrix method, including electron-atom and electron-ion scattering, and radiative processes such as bound-bound transitions, photoionization and polarizabilities. The calculations can be performed in LS-coupling or in an intermediate-coupling scheme by including terms of the Breit-Pauli Hamiltonian.

The present version is the deep recomposition of the original version published in

  >  Computer Physics Communications 174 (2006) 273–356 

Numerous new features and extansions are added, see doc folder in this repository and the references:

• Atomic structure calculations using MCHF and BSR

  Oleg Zatsarinny and Charlotte Froese Fischer
  Computer Physics Communications 180 (2009) 2041–2065

• The B-spline R-matrix method for atomic processes: application to atomic structure, electron collisions and photoionization

  Oleg Zatsarinny and Klaus Bartschat
  J. Phys. B: At. Mol. Opt. Phys. 46 (2013) 112001

put DEF_03 (see Libraries_03) in your home directory, make corrections in the file regarding your compiler, then compile the libraries first, then all programs in raw, using the Makefiles for each program

These extensions allows one to begin calculation from scratch, using only BSR programs