The effect of neutron energy on defect production in alumina
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,xn) reactions travel through insulating materials in the reactor, displacement damage will occur as they interact with atoms in the insulating material. Using the Monte Carlo Code TRIM (Transport Ions in Matter), calculations using Al and O ions at energies that simulate expected recoil energy levels in alumina (Al{sub 2}O{sub 3}) were performed. This study focuses on recoil energy ranging from 100 eV to 10 MeV. In addition, recoil energy spectra for aluminum and oxygen 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.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10171533
- Report Number(s):
- LA-UR-94-2517; CONF-940731-1; ON: DE94016166
- Resource Relation:
- Conference: 2. international conference on computer simulations of radiation effects in solids (COSIRES-2),Santa Barbara, CA (United States),24-29 Jul 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
Similar Records
New ideas in dosimetry and damage calculations for fusion materials irradiations
Measurement and interpretation of DT neutron emission from TFTR. [TFTR (Tokamak Fusion Test Reactor)]