What is OSCAR-5?
The OSCAR code suite is a nodal diffusion based calculational system developed at Necsa, South Africa. OSCAR-5 offers multi-code, multi-physics support for reactor analysis, with the primary aim to allow the use of fit-for-purpose tools in support of reactor operations. This system is under active development in response to the challenging demands of the modern reactor analysis environment.
Who can use OSCAR-5?
OSCAR-5 has a customizable user license agreement, spanning from students, researchers, to full industrial commercial licenses, together with user support and customized development options. Have a look at our Getting Started section, or contact us for more information if you are interested in joining the OSCAR-5 collaboration team.
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OSCAR-5 at the 11th African Conference on Research Reactors Safety, Operation & Utilization: November 2025
The 11th African Conference on Research Reactors Safety, Operation & Utilization took place in…
OSCAR-5 training workshop: September 2025
During the period of 1 – 5 September 2025, the OSCAR team hosted an…
OSCAR-5 user group meeting: April 2025
From 14 to 17 April 2025, the OSCAR team held an OSCAR-5 user group…
Upcoming OSCAR-5 training workshop: February 2022
The OSCAR team is planning a four-day OSCAR-5 training workshop for February 2022, with…
New Release of OSCAR-5 version 1.2: June 2021
The latest release of OSCAR-5 (v 1.2) is available for download and installation as…
OSCAR extended to include SMR design capability: February 2021
OSCAR has recently been extended to handle Pebble and Prismatic High temperature reactor designs.…






