FLAIR3 – recasting simulation experiences with the Advanced Interface for FLUKA and other Monte Carlo codes

Particle tracking Monte Carlo codes are complicated programs to use, making them error prone for the end user. To address this problem, and simplify the use of (initially) FLUKA, Flair was born in late 2006. Over the course of time, Flair evolved so much that it established itself as the de-facto standard for working with FLUKA, even to the extent that users often confuse the two programs. Recently a major development effort was routed on separating the interface from the functionality and the tight links with FLUKA. This opened the door to support other Monte Carlo codes. Notably this effort was in line with the new generation of the FLUKA code v5, however also PHITS, MCNP and partially PENELOPE can benefit from this architectural change. The present paper describes the latest developments in the code and some of the most noteworthy Flair features.