^{(c) Copyright Shahab SANJARI 2015-2023}

barion is a set of classes and also a graphical user interface written entirely in Python to access information and perform calculations related to (relativistic or non-relativistic) ions and nuclei. In essence, this program provides a convenient interface to the published data on atomic masses in the world famous 2016-2017 Atomic Mass Evaluation. The name barion is a word play between ion and bar meaning "heavy ion", the latter is a short form of the Greek word βαρύς which means heavy (also used in the words such as "isobar").

Specifically this program can be used in experiments involving mass and lifetime measurements of radioactive ion beams. It can also be used in a variety of applications such as medical radio therapy, astrophysics and fundamental physics research, etc. One can perform

• Identification of nuclides
• Settings of accelerator parameters specially the storage rings
• Design and analysis of beam monitors specially Schottky detectors
• Create nuclidic chart plots
• and many more...

barion is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

barion is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with barion. If not, see http://www.gnu.org/licenses/.

The AME2012 database is not included with the distribution. It can be downloaded on demand within the software if not available.

This program makes NO CLAIMS OF CORRECTNESS OF THE DATA AND CALCULATION VALUES WHAT SO EVER.

For some versions, binary releases for OSX and Win will be provided on GitHUB. An Arch linux package is planned and will be announced.

Binary releases are available in the release section.

barion is writen in Python 3 so it needs a standard working environment such as Linux, OSX or Windows. More general info on python installation under Win and OSX can be found on this gist. It should work out of the box with standard linux installations. barion needs the library fortranformat which can be installed using pip pacakge manager.

I am thankful to carlkl for his valuable help in making a stand alone binary under MS Windows and also for fruitful discussions and suggestions.