A python package for speedy analyses of 2D radiotherapy dose distributions.

Installation is through pip. You must have numpy installed in your environment first. You may also wish to install matplotlib to run the examples.

pip install numpy matplotlib
pip install flashgamma

Checkout the examples folder for details.

Example 1 demonstrates how to perform a gamma analysis on some ArcCheck data:

Example 2 uses arbitrary numpy arrays:

Example 3 uses a cython based function to rapidly calculate gamma pass rates. That means you can analyse entire ranges of dose difference and distance to agreement criteria at once, generating interesting plots like this:

This code was written for personal educational purposes. Although it was shown internally to perform similarly to a range of proprietary gamma analysis codes, it is in no way guaranteed to be free from bugs and errors.

This software was featured in the following publication:

Samuel C. Peet, Liting Yu, Sarah Maxwell, Scott B. Crowe, Jamie V. Trapp, Tanya Kairn. (2020). "Exploring the gamma surface: A new method for visualising modulated radiotherapy quality assurance results". Physica Medica: European Journal of Medical Physics, Volume 78, 166-172. (https://doi.org/10.1016/j.ejmp.2020.09.021)