TRANSIENT RADIATION EFFECTS ON ELECTRONIC PARTS.
Abstract
Prompt and delayed conductivity in mica, ceramic, tantalum oxide, and Mylar dielectrics with various types of electrodes under Linac irradiation are reported. Fast neutron-induced conductivity of a Mylar capacitor irradiated in the TRIGA reactor is found to be =4.4 X 10 to the minus 27th power (nv) to the 0.95 power. A theory of neutron induced ionization in insulators has been formulated which predicts linear dependence of conductivity with neutron energy deposition rate. Data from irradiations of EG-58 aluminum coaxial cable at the TRIGA reactor facility, at the Sandia Pulsed Reactor Facility, and with a 14-MeV neutron generator show that the saturated response of EG-58 is smaller than conventional RG-58 cable response. Ionized-gas experiments in a parallel-plate geometry indicate that a potential of -2.5 v is sufficient to repel approximately one-half the secondary electrons reaching the signal plate from nearby plates. A computer program describing the motion of holes and electrons in a p-n diode has been revised to describe the motion of electrons and ions in an ionized gas in parallel-plate geometry under an applied field. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 10, 1965
- Accession Number
- AD0623904
Entities
People
- D. K. Nichols
- R. F. Overmyer
- V. A. J. Van Lint
Organizations
- General Dynamics