Criticality Safety Analysis Codes
MONK
MONK uses the Monte Carlo technique to provide an accurate of calculating the multiplication factor k-effective for systems containing fissile material. MONK provides a powerful and flexible geometry modelling capability and a physically realistic account of neutron interactions. MONK is developed in the UK by the ANSWERS Software Service.
WIMS
WIMS is a UK-based general purpose reactor physics program for core physics calculations developed by the ANSWERS Software Service. The current WIMS code combines both deterministic and Monte Carlo reactor physics methods. The WIMS code thus uses a wide variety of methods to solve reactor physics problems and can be used for both benchmark and design type calculations.
MCNP
MCNP is a US-based general-purpose Monte Carlo N-Particle code that can be used for neutron, photon, electron, or coupled neutron/photon/electron transport. Specific areas of application include, but are not limited to, radiation protection and dosimetry, radiation shielding, radiography, medical physics, nuclear criticality safety, Detector Design and analysis, nuclear oil well logging, Accelerator target design, Fission and fusion reactor design, decontamination and decommissioning.
The MCNP home page contains a link to the MCNP User Forum
SCALE/KENO
KENO-VI is a 3-D generalized geometry Monte Carlo code that can perform continuous energy (CE) or multigroup (MG) calculations using the latest ENDF/B-VII data in SCALE. SCALE consists of a number of modules that can be combined to perform various aspects of criticality and shielding analysis and is developed at Oak Ridge in the US.
TRIPOLI
TRIPOLI (CEA, France) is a 3D pointwise Monte Carlo code for radiation protection and shielding, core physics, criticality and nuclear instrumentation studies. It forms part of the CRISTAL suite of codes.
COG
COG is a modern, general-purpose, high fidelity, multi-particle transport code. It has a long history of use in criticality safety studies at the Lawrence Livermore National Laboratory (LLNL) in the USA.