Welcome! This is ocdb, a Python package for easily accessing the X-ray/EUV/VUV scattering and absorption data contained in the Optical Constants Database (OCDB) provided by the German National Metrology Institute, the Physikalisch-Technische Bundesanstalt, PTB.

Features

A list of (planned) features:

• Access to X-ray/EUV/VUV scattering and absorption coefficients (n and k)
• Interface compatible to the periodictable Python package
• Provides data and uncertainties
• FAIR and linked data: citable, reliable, and reproducible
• Offline access: data contained in package
• Community-driven: easy to contribute

And to make it even more convenient for users and future-proof:

• Open source project written in Python (>= 3.9)
• Developed fully test-driven
• Extensive user and API documentation

Installation

To install the ocdb package on your computer (sensibly within a Python virtual environment), open a terminal (activate your virtual environment), and type in the following:

pip install ocdb

License

This program is free software: you can redistribute it and/or modify it under the terms of the GPLv3 License. See the file LICENSE for more details.