THE EFFECT OF NEUTRON ENERGY ON DEFECT PRODUCTION IN ALUMINA

[摘要] In a deuterium-tritium fusion reactor, neutrons are produced at an energy of about 14 MeV. When these neutrons and other lower energy neutrons from (n, nn) reactions travel through insulating materials in the reactor, displacement damage will occur. Using the Monte Carlo code, TRIM (Transport of Ions in Matter), calculations using aluminum (Al) and oxygen (O) ions at energies that simulate expected recoil energy levels in alumina (Al2O3) were performed. This study focuses on recoil energies ranging from 100 eV to 10 MeV. In addition, recoil energy spectra for Al and O were calculated for 1 MeV and 14 MeV neutrons using the computer code, SPECTER. Combining the TRIM and SPECTER calculations, it was possible to determine the number of aluminum and oxygen vacancies created in alumina resulting from a specific neutron energy.

[发布日期] 1995-08-01

[效力级别]  Proceedings Paper