Total Quantum Flux of Isotropic Sources*

J. Woodland Hastings(University of Illinois Urbana-Champaign), Gregorio Weber(University of Illinois Urbana-Champaign)
Journal of the Optical Society of America
December 1, 1963
Cited by 405

Abstract

The total radiant flux from a solution containing a radioactive compound, hexadecane-1-C14, plus an appropriate scintillator has been determined. The procedure used involves comparison of its luminescent emission with the light scattered by glycogen illuminated with a monochromatic homogeneous light beam of known photon flux. From the result obtained the scintillation quantum yield of β− disintegration from carbon 14 has been determined to be 793 photons; thus 5.25% of the energy appears as light.


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