Some relative fluorescence efficiencies in the Schumann region
V W Maslen; N E White; S E Williams; V W Maslen; Physics Department, University of Western Australia; N E White; Physics Department, University of Western Australia; S E Williams; Physics Department, University of Western Australia
Журнал:
British Journal of Applied Physics
Дата:
1953-10-01
Аннотация:
A vacuum grating monochromator, with photomultiplier detector, and slits about 1.5 Å wide has been used to measure the flourescence quantum efficiency of three (ZnCd)S phosphors, calcium and magnesium tungstates, ZnSiO<sub>4</sub>: Mn, Apiezon A and B oils and Apiezon L grease, relative to sodium salicylate in the 1000-2000 Å region. The efficiency varies from 10 to 50% of that of sodium salicylate, decreasing toward shorter wavelengths. Evidence for the rapid variation of efficiency in bands of the order of 5 Å wide was found for Apiezon grease in the 1300-1600 Å region.
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