Recent News
SNAP Version 2.6.8 Released
February 10, 2019
AptPlot 6.8.0 Updated
February 19, 2018
PyPost 1.3.3 Released
February 19, 2018


The CONTAIN computer code is an integrated analysis tool used for predicting the physical conditions, chemical compositions, and distributions of radiological materials inside a containment building following the release ofmaterial from the primary system in a light-water reactor accident.

The CONTAIN plug-in for SNAP supports CONTAIN Version 2.0.

Change Log

Version 2.0.0 - Released 2/4/2011:

  • Updated to support the new SNAP 2.0 functionality including Job Stream support and headless capability.