Long-term processes of cathodoluminescence degradation of thin film phosphors Zn{sub 2}SiO{sub 4}:Ti and Zn{sub 2}GeO{sub 4}:Mn were investigated in a wide range of e-beam energies, current and power densities. The time dependencies describing decreasing of emission intensity have been found. At high-level densities of e-beam irradiation the specific behavior of long-term degradation processes was observed, which is characteristic with rapid degradation at initial stage and slow consequent decrease of intensity. The most probable mechanisms responsible for long-term processes of degradation in investigated phosphors are proposed.

Thin-film Zn{sub 2}GeO{sub 4}:Mn phosphors with lower temperature of crystallization, and potentially compatible with industrial technologies were investigated. The technology of thin films synthesis has been developed, as well as their structure and crystal parameters have been investigated. Photoluminescence excitation spectra, photoconductivity, temperature dependencies and ESR-spectra determined by manganese ions were studied. The mechanism of luminescence in this phosphor has been proposed. Cathodo- and electroluminescent parameters of thin film structures based on Zn{sub 2}GeO{sub 4}:Mn are presented.

The proposed neutrino factory will produce a defined beam of neutrinos from the decay of muons in a storage ring[1,2,3]. The storage ring will be oriented so that the neutrinos can be detected at one or more detectors several thousand kilometers from the storage ring. This report presents an overview of the proposed neutrino factory and its subsystems that use cryogenics. Superconducting magnets will be used in the following ways in the neutrino factory; (1) the outsert solenoid for the 20 T pion capture system, (2) the decay channel where pions decay to muons, (3) the muon phase rotation system, (4) the muon cooling system, (5) focusing during the first stage of muon acceleration, (6) bending and focusing magnets in the re-circulating linac accelerator and (7) bending and focusing magnets in the muon storage ring where the neutrino beams are generated. Low temperature superconducting RF cavities will be used to accelerate the muons from about 200 MeV to 20 GeV. The muon cooling system uses liquid hydrogen absorbers at 20 K to reduce the emittance of the muon beam before it is accelerated to full energy.

This report describes key findings on the characterization of the structure and function of Rhizobium polysaccharides and how they relate to the symbiosis between these bacteria and legume plants.