ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2020, Vol. 17, No. 4, pp. 285-289

Spectral characteristics of plants at early stages of exposure to ionizing radiation

B.V. Shilin 1 , A.A. Tronin 1 
1 Saint Petersburg Scientific Research Center for Ecological Safety RAS, Saint Petersburg, Russia
Accepted: 30.07.2020
DOI: 10.21046/2070-7401-2020-17-4-285-289
According to the results of studies in strictly controlled greenhouse conditions for some plants (beans, geranium, syngonium, maple and oak), it was shown that with short-term exposure to ionizing radiation from weak sources (140–250 μR/hour), spectral anomalies appear in the plants. They are most significant for the near infrared range of 700–900 nm, also occur in the visible 400–700 nm and near infrared 1500–1800 nm ranges, but the indicator role of the latter is insignificant. These anomalies form over a period from one day to several days before the appearance of visible changes in plants, serve as early indicators of radioactive contamination and can be recorded by video spectral aerospace and field systems in the near infrared range of 700–900 nm. This is especially important for isotopes with a predominant intensity of alpha and beta radiation, which are inaccessible for registration with traditional airborne gamma imaging.
Keywords: ionizing radiation, spectral characteristics of plants
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