Role of Thermal Spikes in Energetic Displacement Cascades

ABSTRACTThe role of the interatomic potentials on the primary damage has been investigated by Molecular Dynamics (MD) simulations of displacement cascades with three different interatomic potentials dedicated to α-Fe. The primary damage, caused by the neutron interaction with the matter, has been found to be potential sensitive. We have investigated the equilibrium parts of the potential as well as the “short distance interactions” which appear to have a strong influence on the cascade morphology and defects distribution at the end of the cascade. The static properties as well as dynamical (thermal) characteristics of the potentials have been considered; the kinetic and potential energy transfers during the collisions have also been studied.

Download Full-text

The role of Cu in displacement cascades examined by molecular dynamics

Journal of Nuclear Materials ◽

10.1016/s0022-3115(01)00421-4 ◽

2001 ◽

Vol 294 (3) ◽

pp. 274-287 ◽

Cited By ~ 45

Author(s):

C.S. Becquart ◽

C. Domain ◽

J.C. van Duysen ◽

J.M. Raulot

Keyword(s):

Molecular Dynamics ◽

Displacement Cascades

Download Full-text

Role of CSL Boundaries on Displacement Cascades in β-SiC

MRS Proceedings ◽

10.1557/opl.2013.61 ◽

2013 ◽

Vol 1514 ◽

pp. 43-48

Author(s):

Prithwish K. Nandi ◽

V. Ajay Annamareddy ◽

Jacob Eapen

Keyword(s):

Molecular Dynamics ◽

Grain Boundary ◽

Grain Boundaries ◽

Neutron Irradiation ◽

Md Simulations ◽

Atomic Mobility ◽

Statistical Nature ◽

Displacement Cascades ◽

Tilt Grain Boundary

ABSTRACTMolecular dynamics (MD) simulations are carried out to understand the mechanisms of damage production and recovery near grain boundaries in β-SiC under neutron irradiation. Our investigations show that the damage generated by radiation is reduced by the presence of a ∑9{122}[110] tilt grain boundary. Directional displacements which are averaged over an isoconfigurational ensemble are used to characterize the statistical nature of atomic mobility near the grain boundary.

Download Full-text

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽

10.1001/jama.195.12.1005 ◽

1966 ◽

Vol 195 (12) ◽

pp. 1005-1009 ◽

Cited By ~ 18

Author(s):

D. J. Fernbach

Keyword(s):

Wilms Tumor

Download Full-text

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽

10.1001/jama.195.3.167 ◽

1966 ◽

Vol 195 (3) ◽

pp. 167-172 ◽

Cited By ~ 2

Author(s):

T. E. Van Metre

Keyword(s):

Diagnosis And Management

Download Full-text

The power of norms to sway fused group members

Behavioral and Brain Sciences ◽

10.1017/s0140525x18001644 ◽

2018 ◽

Vol 41 ◽

Cited By ~ 1

Author(s):

Winnifred R. Louis ◽

Craig McGarty ◽

Emma F. Thomas ◽

Catherine E. Amiot ◽

Fathali M. Moghaddam

Keyword(s):

Evolutionary Anthropology ◽

Normative Systems ◽

Violent Extremism ◽

Identity Fusion ◽

Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Download Full-text