Accession Number : AD0428536


Title :   LUMINESCENCE OF MANGANESE-ACTIVATED MAGNESIUM GERMANATE,


Corporate Author : MICHIGAN UNIV ANN ARBOR INST OF SCIENCE AND TECHNOLOGY


Personal Author(s) : Phillips,Richard A


Report Date : Jan 1964


Pagination or Media Count : 8


Abstract : The emission spectrum of Mg4GeO6:0.01 Mn has been found to depend on the temperature of preparation. The spectrum of the sample prepared at 1275C shows four narrow bands at 6200 Angstroms to 6600 Angstroms; the spectrum of the sample prepared at 1475 C consists of a broad band centered at 6150 Angstroms. X-ray diffraction patterns of the powders indicate the presence of an intermediate phase in the sample prepared at 127 C. It was concluded that the valence of the manganese activator is different in the two samples. (Author)


Descriptors :   *GERMANIUM COMPOUNDS , LUMINESCENCE , MANGANESE , EMISSIVITY , SPECTROSCOPY , TEMPERATURE , NARROWBAND , X RAY DIFFRACTION , VALENCE


Distribution Statement : APPROVED FOR PUBLIC RELEASE