Neutron-induced damage evolution under Beam Raster Scanner conditions for IFMIF

被引：0

作者：

Mota, Fernando ^{[1
]}

Ortiz, Christophe J. ^{[1
]}

Ibarra, Angel ^{[1
]}

Vila, Rafael ^{[1
]}

机构：

[1] CIEMAT, Lab Nacl Fus Confinamiento Magnet, E-28040 Madrid, Spain

来源：

JOURNAL OF NUCLEAR MATERIALS | 2011年 / 417卷 / 1-3期

关键词：

CROSS-SECTION DATA; IRON; SIMULATION;

D O I：

10.1016/j.jnucmat.2010.12.271

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation and evolution of defects in materials irradiated with a homogeneous neutron source and with the Beam Raster Scanner (BRS) solution was investigated. The intensity neutron source fluctuations inherent to the BRS system were determined using the neutron transport McDeLicious code. Defects generated during irradiation were calculated using the binary collision approximation MARLOWE code, using the primary knock-on atom (PKA) energy spectrum resulting from neutron interactions with the material. In order to predict the evolution of defects during irradiation, a Rate Theory model based on ab initio parameters was developed. Our model accounts for the migration of mobile defects, the formation of clusters and their recombination. As an example, we investigated defect evolution in Fe irradiated at room temperature in both beam configurations. Simulation results clearly indicate that the defect evolution expected in the BRS configuration is nearly the same as the one expected in a homogeneous irradiation system. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1280 / 1283

页数：4

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