{ital In situ} measurement of radiation induced conductivity in oxide insulators during neutron irradiation
- Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6376 (United States)
An experimental investigation of the {ital in situ} electrical conductivity of Wesgo Al995 polycrystalline alumina at approximately 450{degree}C has been performed at the high flux beam reactor at Brookhaven National Laboratory. The measured radiation induced conductivity (RIC) was about 10{sup {minus}8} S/m at an ionizing dose rate of 6000 Gy/s. No evidence for permanent radiation induced electrical degradation was observed for an applied electric field of 147 V/mm up to a dose level of {approx}1.8 displacements per atom. The effect of neutron irradiation on the electrical properties of two mineral insulated cables was also investigated. The RIC in the MgO insulation of a coaxial and a triaxial cable was measured to be in the range of 6{endash}20 {times}10{sup {minus}8} S/m at an ionizing dose rate of {approx} 6000 Gy/s.
- OSTI ID:
- 573940
- Journal Information:
- Journal of Applied Physics, Vol. 83, Issue 4; Other Information: PBD: Feb 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Summary of round robin measurements of radiation induced conductivity in Wesgo AL995 alumina
Analysis of in-situ electrical conductivity data from the HFIR TRIST-ER1 experiment