# BSR: B-spline atomic R-matrix codes

## Description

Abstract 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. Title of program: BSR Catalogue Id: ADWY_v1_0 Nature of problem This program uses the R-matrix method to calculate electron-atom and electron-ion collision processes, with options to calculate radiative data, photoionization etc. The calculations can be performed in LS-coupling or in an intermediate-coupling scheme, with options to include Breit-Pauli terms in the Hamiltonian. Versions of this program held in the CPC repository in Mendeley Data ADWY_v1_0; BSR; 10.1016/j.cpc.2005.10.006 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)