Update of UCL computer codes for the calculation of fine-structure electron–atom collision cross-section Original Research Article

To calculate fine-structure electron–atom collision cross-section, a set including 3 codes was developed at University College London, presented in Computer Physics Communications: SUPERSTRUCTURE (1974), UCL Distorted wave (1998), JAJOM (1972, 1978). Due to improvements in computers, more ambitious calculations of atomic data were performed. Unfortunately, unexpected problems have appeared which required an update version of these codes, presented here.