CLASS, A New Tool for Nuclear Scenarios: Description and First Application

The presented work is motivated by a french law regarding nuclear waste management. In order to avoid the limitation coming with the usage of the existing scenario codes, as COSI, VISION or FAMILY, the Core Library for Advance Scenario Simulation (CLASS) is being develop. CLASS is an open source tool, which allows any user to simulate an electronuclear scenario. The main CLASS asset, is the possibility to include any type of reactor, even a complitely new concept, through the generation of its ACSII evolution database. In the present article, the CLASS working basis will be presented as well as a simple exemple in order to show his potentiel. In the considered exemple, the effect of the transmutation will be assessed on Minor Actinide Inventory produced by PWR reactors.

• B. Mouginot
• J.B. Clavel
• N Thiolliere

• Electronuclear scenario
• reactor
• simulation
• nuclear waste.

[1] O. M'eplan et al., MURE, MCNP Utility for Reactor Evolution: couples
Monte Carlo transport with fuel burnup calculations., Computer Program
Services of OECD Nuclear Energy Agency, http://www.oecd-nea.org/
tools/abstract/detail/nea-1845, 2009.
[2] N. Thiolli`ere, J.B. Clavel and B.Mouginot Etude de scnarios double strate
de transmutation des Actinides Mineurs en ADS., GEDEPEON - Atelier
Bilan., Paris, Janvier 2012.
[3] A. Onillon Private communication, 2012.