The Nonuniformity of the Light Yield in Scintillator Strips with Wavelength-Shifting Fibers of the DANSS Detector

The transverse nonuniformity of the light yield in scintillator strips of the DANSS detector was investigated on a test setup that was specially designed for this purpose using proportional chambers with a wire pitch of 1 mm. It is shown that using the approaches that were used in the DANSS experiment, the variation in the light yield due to the geometric features of the strip design is approximately 8% for a minimum ionizing particle. This study can be useful for making estimates and designing similar detectors.     

Engineering Method for Calculating Deformations of Plastic-Frozen Soils Taking Into Account Their Nonlinear Compressibility and Creep

Soil Mechanics and Foundation Engineering - In the present paper, improvements to a normative technique for calculating the deformations of plastic-frozen soils are proposed by substituting...     

Structural-Phase Composition and Mechanical Properties of Experimental Compositions of High-Strength Pseudo-β-Titanium Alloy Containing Rare-Earth Elements

Metal Science and Heat Treatment - Mechanical properties, phase composition, and structure of test melts of high-strength pseudo-β-titanium alloyed with yttrium and gadolinium are studied....     

Influence of DTH Hammer Impact Energy on Drilling-with-Casing System Performance

Water well drilling-with-casing equipment is described in the article. Construction diagrams and field test results of series-production and new drilling-with-casing DTH hammers possessing higher impact energy are analyzed. The economic study of water well drilling cost in geological conditions of the Republic of Altai is performed.     

Tests of a Two-Stage Core at the KV-1 Test Facility: Physical Aspects and Results

Atomic Energy - The physical aspects and main results of reactor tests of a two-stage core consisting of fresh fuel assemblies and a significant number of fuel assemblies from the previous core,...     

On the Ballistic Flow of Two-Dimensional Electrons in a Magnetic Field

Semiconductors - In conductors with a very low defect density, electrons at low temperatures collide mainly with the sample edges; therefore, the ballistic transport of charge and heat is...     

On a neutron detector based on TlInSe<Subscript>2</Subscript> crystals intercalated with a lithium isotope

The possibility of increasing the sensitivity of a neutron detector based on a TlInSe₂ crystal by introducing the ⁶Li isotope into this crystal is investigated. Introduction of the isotope is conducted by the method of electrochemical intercalation from aqueous and nonaqueous solutions of LiCl and also from the melt of the LiCl–KCl eutectic. It is shown that intercalation by the electrochemical method from a LiCl solution in propylene carbonate, performed along the “c” axis of the crystal (along strong bond chains) is efficient. The attained concentration of introduced lithium amounts to (1–1.2) × 10²¹ cm^–3, which increased the sensitivity of the detector by approximately four times. Good agreement between the calculated and experimental values of the detector sensitivity is demonstrated.