This paper describes a new method for measuring radiation dose by using natural pigments. The pigments were extracted from Hibiscus rosa sinensis L. and Canna indica L. and were irradiated with gamma ray. Doses of 30 rad and above are indicated by color changes.
REFERENCES
1.
G. F. Knoll, Radiation Detection and Measurement (Wiley, New York, 1979), pp. 753–755.
2.
S. C. Sigoloff, Selected Topics in Radiation Dosimetry, Proceedings of the Symposium, Vienna, 1960 (IAEA, Vienna, 1960), pp. 337–359.
3.
4.
Editors note on colors: The authors have supplied actual color strips which do show distinct color changes as the authors indicate, though we have not been able to reproduce them in color. The Assistant to the Editor describes the colors as: Fig. 1, “dark lavender”; Figs. 2 and 3(a), “lavender”; Fig. 3(b) “rather dark violet”; and Fig. 3(c) “very dark violet, blackish”.
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© 1987 American Institute of Physics.
1987
American Institute of Physics
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