Development and testing of secondary ion accelerator for ITER neutral particle diagnostic system.

This paper presents the results of the development and testing of a secondary ion accelerator for the diagnostic complex of neutral particle analyzers at ITER. The accelerator is part of an analyzer designed to measure fluxes of neutral deuterium and tritium particles escaping from reactor plasma in a total range of 10-200 keV. The aim of the accelerator is to improve the signal/background ratio of the analyzer.

[Features of performing surgical dental operations in patients with blood tumor diseases].

Objective: The aim of the study is the increasing the efficiency and improving the quality of dental surgical care for patients with tumor diseases of the blood system.

Material And Methods: For the period from 2020 to 2022 The authors examined and treated 15 patients with tumor diseases of the blood system who were hospitalized at the National Medical Research Center for Hematology of the Ministry of Health of the Russian Federation. Of these, 11 provided dental surgical benefit.

[Succinate salts in solving the «oxygen paradox» of reperfusion].

Reperfusion damage to the cellular structures of tissues in the early post-ischemic period is a consequence of the restoration of blood flow and reoxygenation. Currently, there is no effective treatment for reperfusion metabolic disorders in clinical practice. Over the past decades, biological studies of hypoxia and the role of hypoxia-inducible factor-1α (HIF-1), potentiating succinatoxidase oxidation by signal from the succinate-dependent receptor (GPR91), have significantly improved the understanding of oxygen homeostasis during the period of recovery of blood flow.

[Bilateral acute purulent mumps in patients with COVID-19].

The Aim Of The Study: To familiarize dentists with the features of the clinical course of acute purulent mumps occurring in patients with COVID-19.

Material And Methods: Four patients aged 73 to 89 years with acute bilateral purulent mumps, which occurred against the background of COVID-19, were under observation. The patients were treated for COVID-19, and acute purulent mumps was also treated.

Bench tests of a helium ion source for the neutral particle diagnostic system of the ITER tokamak.

Bench tests of a 15 keV helium ion source, which has been developed for the neutral particle diagnostic system of the International Thermonuclear Experimental Reactor (ITER), are described. Being part of the diagnostic system, the ion source will be used to monitor the intactness of carbon stripping foils as well as to check the detection and dispersion systems of the main diagnostic instruments-neutral particle analyzers (NPAs). The ion source produces a wide 5-cm diameter (FWHM) ion beam at a distance of about 50 cm; the ion beam uniformity at a 2-cm area corresponding to the size of the stripping foil is not worse than 10%.