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A Gamma‐Ray Induced Absorption Band in Some Lead Borate Glasses
Author(s) -
BISHAY ADLI M.
Publication year - 1960
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1960.tb13687.x
Subject(s) - boron , borate glass , absorption band , absorption (acoustics) , lead glass , materials science , analytical chemistry (journal) , ion , lead (geology) , electronic band structure , inorganic chemistry , chemistry , mineralogy , optics , metallurgy , physics , geology , condensed matter physics , composite material , organic chemistry , geomorphology , chromatography
Observations made on some lead borate, lead aluminoborate, and lead boroaluminosilicate glasses have shown that an absorption band is induced at 1.5 e.v. (825 mμ) by gamma irradiation. Experimental evidence indicates that this band is associated with Pb 2+ ions and boron in the structure of these glasses. On replacing PbO by Tl 2 O in a borate glass, two strong bands were observed; one band corresponds to the 1.5 e.v. band induced in lead borate glasses and a completely new band at 1.0 e.v. (1235 mμ). A postulate for the center responsible for the absorption band at 1.5 e.v. is proposed.