Особенности оценки профессиональных рисков в медицинской организации

Работа посвящена оценки профессионального риска для работников медицинских организаций с учетом эпидемиологической обстановки. В данной работе рассмотрено нормативно-правовое регулирование оценки профессионального риска в Российской Федерации. Проведен анализ существующих методов оценки профессионального риска. В результате исследования проведена оценка профессионального риска для работников медицинской организации и предложены мероприятия по уменьшению уровня риска.The work is devoted to the assessment of professional risk for employees of medical organizations, taking into account the epidemiological situation. This paper examines the legal regulation of professional risk assessment in the Russian Federation. The analysis of existing methods of professional risk assessment is carried out. As a result of the study, an assessment of professional risk for employees of a medical organization was carried out and measures to reduce the level of risk were proposed

Исследование последовательности импульсов тормозного излучения малогабаритного бетатрона

Разработана имитационная модель потока импульсного тормозного излучения и реализована в подпрограмме на MathCad. Адаптирована модель потока импульсного тормозного излучения к имитационной модели формирования цифровых радиографических изображений. Исследовано влияние параметров исходного потока тормозного излучения на качество цифровых радиографических изображений. Проведён цикл натурных экспериментов по оценке изменения параметров потока импульсов регистрируемого излучения с цифровых детекторов на этапах формирования радиографического изображения на комплексе высокоэнергетической цифровой радиографии Томского политехнического университета.A simulation model of pulsed radiation flux and implemented in a subroutine on MathCad is available. Pulse bremsstrahlung flow model for a simulation model of digital radiographic image formation Adapted. Effect of source stream parameters. Experiments on the study of changes in the parameters of the pulse flux are recorded using digital detectors at the stages of radiographic image formation on the complexes of high-energy digital radiography of the Tomsk Polytechnic University

Long-lived [1.1.1.1]- and [2.2.1.1]-‘Isopagodane’ dications: novel 4C/2e σ-bishomoaromatic dications†

The dications generated from [1.1.1.1] and [2.2.1.1]iso- pagodane in SbF 5 –SO 2 ClF solution at 278 °C are of s-bishomoaromatic nature (4C/2e), very similar in geometry, yet chemically different in their properties

Memory effect in the deposition of C20 fullerenes on a diamond surface

In this paper, the deposition of C-20 fullerenes on a diamond (001)-(2x1) surface and the fabrication of C-20 thin film at 100 K were investigated by a molecular dynamics (MD) simulation using the many-body Brenner bond order potential. First, we found that the collision dynamic of a single C-20 fullerene on a diamond surface was strongly dependent on its impact energy. Within the energy range 10-45 eV, the C-20 fullerene chemisorbed on the surface retained its free cage structure. This is consistent with the experimental observation, where it was called the memory effect in "C-20-type" films [P. Melion , Int. J. Mod. B 9, 339 (1995); P. Milani , Cluster Beam Synthesis of Nanostructured Materials (Springer, Berlin, 1999)]. Next, more than one hundred C-20 (10-25 eV) were deposited one after the other onto the surface. The initial growth stage of C-20 thin film was observed to be in the three-dimensional island mode. The randomly deposited C-20 fullerenes stacked on diamond surface and acted as building blocks forming a polymerlike structure. The assembled film was also highly porous due to cluster-cluster interaction. The bond angle distribution and the neighbor-atom-number distribution of the film presented a well-defined local order, which is of sp(3) hybridization character, the same as that of a free C-20 cage. These simulation results are again in good agreement with the experimental observation. Finally, the deposited C-20 film showed high stability even when the temperature was raised up to 1500 K