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A suite of atomic structure codes originally developed by R. D. Cowan adapted for Windows-based personal computers.

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Metadata Last Checked: August 02, 2025 | Last Modified: 2021-11-22 00:00:00
The package consists of a set of computer programs for calculation of energy levels, radiative transition wavelengths and probabilities, electron impact excitation and photoionization cross sections, etc. The programs were originally written by Robert D. Cowan in 1962-1991 (see R.D. Cowan, The theory of atomic structure and spectra, University of California Press, Berkeley - Los Angeles - London, 1981). The dataset was updated in November, 2021.

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