Exact derivation of the synchrotron-radiation equation

The energy radiated by a charge moving along a circle or a helix is calculated exactly (i.e., without an expansion in terms of some parameter). The method used seems extremely promising for analyzing macroscopic systems for the case in which the observer may be much closer to the source than the wave zone. These equations can be used to analyze the coherent radiation of several electrons.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 14–24, April, 1971.     

Trace element analysis of whole blood and urine samples of diabetic patients

A number of samples of whole blood, and urine from diabetic and non-diabetic persons have been analyzed for their trace elemental contents using the proton-induced X-ray emission. The elemental contents of the diabetic and non-diabetic samples are compared.     

Selectivity of the optical-absorption method based on an instrumental pick out of Fourier components in the absorption spectrum

The introduction of interference–polarization filters (IPFs) in the structure of an optical–absorption analyzer makes it possible to pick out a harmonic (a Fourier component of the absorption spectrum) providing measurement with the highest sensitivity. The selectivity of such a method of analysis is determined by overlapping the oscillations of the measured and interfering components. By the example of measurement in benzene in the presence of an interfering component (toluene), the possibility is considered for the optimization of selectivity due to the variation of the path-difference dispersion for ordinary and extraordinary interfering rays. The metrological characteristics of the interference–polarization analyzer of C₆H₆ confirming the results of calculations are given.