Investigation of the possibility of γ-background discrimination in a neutron spectrometer with a proportional counter of recoil protons

The possibility of expanding the range of neutron spectrum measurements to lower energies in fields of mixed n-γ radiation via separation of pulses from recoil protons and γ-induced electrons, using the proportional counter developed for neutron spectrometry at the All-Russia Research Institute of Experimental Physics, has been investigated. With the use of a digital oscilloscope, a data set on the shape of counter pulses under irradiation in a field of mixed n-γ radiation (²⁵²Cf) and in a field of γ rays (SOSGI-M set) has been obtained. Mathematical processing of the obtained data set showed a possibility of distinguishing pulses from recoil protons and electrons; hence, for the ²⁵²Cf source, the lower boundary of the neutron spectrometer operating range can be reduced to ≈80 keV.     

Several chemical transformations of N-(β-hydroxyethyl)uracils

Conclusions Several chemical transformations of N-(-hydroxyethyl)uracils were studied, among them reactions with thionyl chloride and dimethyl sulfate.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2811–2812, December, 1968.     

Structure and dynamics of a plasma piston in rail-gun accelerators for solid objects

Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 2, pp. 145–150, March–April, 1989.