Study of Counting Characteristics of Porous Radiation Detectors

This paper presents the development of a new technology of registration of ionizing radiation and a new type of detectors - single-cathode multiwire porous detector with neither a gaseous nor semiconductor, but a porous dielectric substance, e.g., CsI, being used as working medium. It is shown that the performance of the multiwire porous detector is stable, ensuring highly efficient detection of both heavily ionizing particles and soft X-rays with a spatial resolution better than $\pm 60\mu m$. The continuous stable performance opens up new perspectives for using porous detectors in research as well as medicine. The obtained data are basic for the development of the theory of the phenomenon of electrons' drift and multiplication in porous dielectrics under the action of a strong external electric field.Comment: 43

Observation of Resonant Diffusive Radiation in Random Multilayered Systems

Diffusive Radiation is a new type of radiation predicted to occur in randomly inhomogeneous media due to the multiple scattering of pseudophotons. This theoretical effect is now observed experimentally. The radiation is generated by the passage of electrons of energy 200KeV-2.2MeV through a random stack of films in the visible light region. The radiation intensity increases resonantly provided the Cherenkov condition is satisfied for the average dielectric constant of the medium. The observed angular dependence and electron resonance energy are in agreement with the theoretical predictions. These observations open a road to application of diffusive radiation in particle detection, astrophysics, soft X-ray generation and etc.. `Comment: 4pages, 4figure

Comparison of the Quantum-Chemical Models for the Calculation of Spectroscopic Properties of GeO

В статье проведен расчет частоты валентного колебания газообразного GeO в различных квантово-химических моделях. Проведено сопоставление с экспериментом. Найдена корреляция между расчетными значениями длины связи r(Ge-O) и гармонической частотой колебания. Получены параметры линейной регрессии «гармоническая частота–длина связи». Проведена калибровка квантово-химических методов по расчету свойств GeOCalculations are made of the gaseous GeO valent oscillation frequency in different quantum-mechanical models. Collation with experiment is given. A correlation is found between the calculated values of r(Ge-O) relations with harmonic oscillation frequency. The parameters of the linear regression “harmonic frequency – bond length” are obtained. Calibration of the quantum-chemical methods for the calculation of GeO properties is carried ou

Comparison of the Quantum-Chemical Models for the Calculation of Spectroscopic Properties of GeO

В статье проведен расчет частоты валентного колебания газообразного GeO в различных квантово-химических моделях. Проведено сопоставление с экспериментом. Найдена корреляция между расчетными значениями длины связи r(Ge-O) и гармонической частотой колебания. Получены параметры линейной регрессии «гармоническая частота–длина связи». Проведена калибровка квантово-химических методов по расчету свойств GeOCalculations are made of the gaseous GeO valent oscillation frequency in different quantum-mechanical models. Collation with experiment is given. A correlation is found between the calculated values of r(Ge-O) relations with harmonic oscillation frequency. The parameters of the linear regression “harmonic frequency – bond length” are obtained. Calibration of the quantum-chemical methods for the calculation of GeO properties is carried ou