Autoradiographic investigation of radionuclide alpha-activity in soil and plant samples from Chernobyl zone

• Title: Autoradiographic investigation of radionuclide alpha-activity in soil and plant samples from Chernobyl zone

Author: Akopova, A.B. / Magradze, N.V. / Moiseenko, A.A. / Chalabian, T.S. / Viktorova, N.V. / Garger, E.K.

Reference: International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, 19 (1-4), p.733-738, Jan 1991

doi: 10.1016/1359-0189(91)90302-X

Keywords: nuclear emulsion; radionuclide; autoradiography; hot particle; activity; Chernobyl

Abstract: Alpha-active “hot particles” in soil and plant samples collected in Chernobyl zone have been investigated by the radiographic method. The size and activity of “hot particles” were measured allowing to calculate their contribution into the radiation dose. Correlation between the measured particle parameters was established. The method of the particle size measuring with the help of low sensitive BYa-2 type photoemulsion is described. The measured mean diameter of hot particles varies from 10 to 200 μm and their activity is 10⁻¹−10⁻⁵ Bq. The most active particles (10⁻¹− 10⁻²Bq) were found only in soil. The leaf samples after the same exposure contained particles with activity not higher than 10⁻³ Bq.

URL: http://www.sciencedirect.com/science/article/pii/135901899190302X

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