Electron and proton radiation effects in the high temperature superconductor YBa/sub 2/Cu/sub 3/O/sub 7- delta

• Published in: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) 1989-12, Vol.36 (6), p.1840-1847
• Main Authors: Summers, G.P., Chrisey, D.B., Maisch, W.G., Stauss, G.H., Burke, E.A., Nastasi, M., Tesmer, J.R.
• Format: Article
• Language: English
• Subjects: 360204 > Ceramics, Cermets, & Refractories-- Physical Properties; 440200 > Radiation Effects on Instrument Components, Instruments, or Electronic Systems; 656100 > Condensed Matter Physics-- Superconductivity; ALKALINE EARTH METAL COMPOUNDS; Atomic measurements; BARIUM COMPOUNDS; BARIUM OXIDES; CHALCOGENIDES; CHANNELING; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COPPER COMPOUNDS; COPPER OXIDES; CRITICAL TEMPERATURE; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTRON CHANNELING; Electrons; ENERGY LOSSES; ENERGY RANGE; HARDENING; HIGH TEMPERATURE; High temperature superconductors; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Laboratories; LOSSES; MATERIALS SCIENCE; MEV RANGE; MEV RANGE 10-100; MEV RANGE 100-1000; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PHYSICAL RADIATION EFFECTS; Plasma temperature; PROTON CHANNELING; Proton radiation effects; Prototypes; RADIATION EFFECTS; RADIATION HARDENING; Space technology; Superconducting films; Superconducting materials; SUPERCONDUCTIVITY; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS 360206 > Ceramics, Cermets, & Refractories-- Radiation Effects; YTTRIUM OXIDES
• ISSN: 0018-9499; 1558-1578
• DOI: 10.1109/23.45377

The particle-induced depression of the superconducting critical temperature, T/sub c/, of YBa/sub 2/Cu/sub 3/O/sub 7- delta / is shown to be directly proportional to the nonionizing energy loss (NIEL) of primary knock-on atoms (PKAs) displaced by incident electrons, protons, and heavy ions, which cover a NIEL range of over seven orders of magnitude. Calculations of the NIEL for electrons and protons are given for YBa/sub 2/Cu/sub 3/O/sub 7/ over the range 1-1000 MeV. The partition of NIEL among the elements as a function of incident electron energy is discussed. For a given particle fluence Phi , it is concluded that dT/sub c//d Phi is proportional to the average number of defects produced, is not affected by the formation of defects in cascades, and is independent of the PKA spectrum. This means that the particle-induced depression of T/sub c/ can be predicted for any particle type, for any energy, and for any fluence.< >