Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 40 (1933) > Annual Issue
Document Type
Research
Abstract
During the last twelve years several determinations of the distribution of erythemal effectiveness of radiation in the spectral region extending from wave-length 2400 or 2500 A. to about 3400 A. have indicated maximal effectiveness at 2967 A. However, all the investigators using monochromatic radiation employed the mercury vapor arc as source, so that their observations necessarily were limited to those wave-lengths represented by fairly intense lines of the mercury arc spectrum. These lines are not close enough together to allow accurate determination of the curve of erythemal effectiveness. Maximal effectiveness was assumed to be at 2967 A., its spectral position being roughly indicated by measurements at that wave-length and at wave-lengths no closer than 2925 and 3024 A.
Publication Date
1933
Journal Title
Proceedings of the Iowa Academy of Science
Volume
40
Issue
1
First Page
147
Last Page
147
Copyright
©1933 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Davis, George E.
(1933)
"The Spectral Distribution of Erythemal Effectiveness of Ultraviolet Radiation,"
Proceedings of the Iowa Academy of Science, 40(1), 147-147.
Available at:
https://scholarworks.uni.edu/pias/vol40/iss1/71