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High-power Novosibirsk free electron laser, generating coherent monochromatic tunable radiation within the spectral range from 120 to 240 micrometers, is used for the shadwography of semi-transparent objects. Toepler and holography systems, which are under construction, will enable spectrally-selective imaging at the laser beam diameter of about 10 cm.
A rapid polarographic method for determination of formaldehyde microconcentrations in air has been developed. The method is highly sensitive - 0,5 cg/ml, which is 10 times higher than the sensitivity of the known methods now at use, with standard deviation less than 1.0. It is formaldehyde-selective - other saturated and unsaturated aldehydes, ketones,(More)
Radionuclide measurements have been conducted on sediment, seawater and biota samples collected in Chernaya Bay, on the southern coast of Novaya Zemlya, the site of two underwater nuclear tests conducted in the 1950s. 239,240Pu levels in sediments from the central region of Chernaya Bay exceed concentrations of 15,000 Bq/kg, and are among the highest ever(More)
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