Radiation Damage Due to Electromagnetic Showers.

Rakhno, I. ; Mokhov, N. ; Striganov, S.

Technical Information Center Oak Ridge Tennessee

关键词: Accelerators;    Radiations;    Atomic displacements;    Cross sections;    Evaluation;   

RP-ID  :  DE2008932865

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Radiation-induced damage due to atomic displacements is essential to correctly predict the behavior of materials in nuclear reactors and at charged-particle accelerators. Traditionally the damage due to hadrons was of major interest. The recent increased interest in high-energy lepton colliders gave rise to the problem of prediction of radiation damage due to electromagnetic showers in a wide energy range--from a few hundred keV and up to a few hundred GeV. The report describes results of an electron- and positron-induced displacement cross section evaluation. It is based on detailed lepton-nucleus cross sections, realistic nuclear form-factors and a modified Kinchin-Pease damage model. Numerical data on displacement cross sections for various target nuclei is presented.