Radiation damage due to electromagnetic showers

Rakhno, Igor ; Mokhov, Nikolai ; Striganov, Sergei ; /Fermilab

关键词: ACCELERATORS;    ATOMIC DISPLACEMENTS;    CROSS SECTIONS;    EVALUATION;    FORECASTING;    FORM FACTORS;    HADRONS;    LEPTONS;    NUCLEI;    NUMERICAL DATA;    RADIATIONS;    REACTORS;    TARGETS Accelerators;   

DOI  :  10.2172/932865
RP-ID  :  FERMILAB-FN-0817-APC
PID  :  OSTI ID: 932865
Others  :  TRN: US0803964

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 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.