Binary collision approximation (BCA) calculation allows for two types of damage calculation: full cascade and quick calculations. Full cascade mode describes fully the cascades while in quick calculations, only the trajectory of the ion is followed and effective formulas give an estimation of the damage resulting from each collision of the ion. | Quick calculation of damage for ion irradiation implementation in Iradina and comparisons to SRIM EPJ Nuclear Sci. Technol. 5 7 2019 Nuclear Sciences . Crocombette and C. Van Wambeke published by EDP Sciences 2019 amp Technologies https epjn 2019003 Available online at https REGULAR ARTICLE Quick calculation of damage for ion irradiation implementation in Iradina and comparisons to SRIM Jean-Paul Crocombette1 and Christian Van Wambeke2 1 DEN Service de Recherches de Métallurgie Physique CEA Université Paris-Saclay 91191 Gif-sur-Yvette France 2 DEN Service de Thermique et Mécanique des Fluides CEA Université Paris-Saclay 91191 Gif-sur-Yvette France Received 8 February 2019 Received in final form 1 March 2019 Accepted 29 March 2019 Abstract. Binary collision approximation BCA calculation allows for two types of damage calculation full cascade and quick calculations. Full cascade mode describes fully the cascades while in quick calculations only the trajectory of the ion is followed and effective formulas give an estimation of the damage resulting from each collision of the ion. We implement quick calculation of damage in the Iradina code both for elemental and multi- component solids. Good agreement is obtained with SRIM. We show that quick calculations are unphysical in multi-component systems. The choice between full cascade and quick calculations is discussed. We advise to favour full cascade over quick calculation because it is more grounded physically and applicable to all materials. Quick calculations remain a good option for pure solids in the case of actual quantitative comparisons with neutron irradiations simulations in which damage levels are estimated with the NRT Norgett-Robinson and Torrens formulas. 1 Introduction of the clusters of defects formed directly after the collisions cascades. Nevertheless BCA simulations remain extremely In the nuclear context ion irradiation is used as a way to useful because they are .
