3. DESCRIPTION OF PROGRAM OR FUNCTION
TALYS is software for the simulation of nuclear reactions. Many state-of-the-art nuclear models are included to cover all main reaction mechanisms encountered in light particle-induced nuclear reactions. TALYS provides a complete description of all reaction channels and observables. It is a versatile tool to analyse basic microscopic experiments and to generate nuclear data for applications.
Specific features of the TALYS package :
- an exact implementation of many of the latest nuclear models for direct, compound, pre-equilibrium and fission reactions.
- a continuous, smooth description of reaction mechanisms over a wide energy range (0.001- 200 MeV) and mass number range (12 < A < 339).
- completely integrated optical model and coupled-channels calculations by the ECIS-06 code
- incorporation of recent optical model parameterisations for many nuclei, both phenomenological (optionally including dispersion relations) and microscopical.
- total and partial cross sections, energy spectra, angular distributions, double-differential spectra and recoils.
- discrete and continuum photon production cross sections.
- excitation functions for residual nuclide production, including isomeric cross sections.
- exact modeling of exclusive channel cross sections, e.g. (n; 2np), spectra, and recoils.
- automatic reference to nuclear structure parameters as masses, discrete levels, resonances, level density parameters, deformation parameters, fission barrier and gamma-ray parameters, generally from the IAEA Reference Input Parameter Library
- various width fluctuation models for binary compound reactions and, at higher energies, multiple Hauser-Feshbach emission until all reaction channels are closed.
- various phenomenological and microscopic level density models.
- various fission models to predict cross sections and fission fragment and product yields.
- models for pre-equilibrium reactions, and multiple pre-equilibrium reactions up to any order.
- astrophysical reaction rates using Maxwellian averaging.
- option to start with an excitation energy distribution instead of a projectile-target combination.
- use of systematics if an adequate theory for a particular reaction mechanism is not yet available or implemented, or simply as a predictive alternative for more physical nuclear models.
The official TALYS website is http://www.talys.eu/home