Study of the characteristics of the system: Ion source-ion decelerator.

The features of the method for the formation of dense low-energy ion beams in the system consisting of ion source-ion decelerator are considered. According to this method, a wide ion beam is formed using an ion source with an ion energy of 500 eV and higher, and then the ions are decelerated just before landing on the substrate surface by an electric field created in the ion decelerator. In the considered ion decelerator, the electric field that slows down the ions is created in a gas discharge in E × B fields due to the Hall effect.

Radio frequency source of a weakly expanding wedge-shaped xenon ion beam for contactless removal of large-sized space debris objects.

A theoretical-experimental research has been carried out to determine the characteristics of a radio frequency (RF) ion source for the generation of a weakly expanding wedge-shaped xenon ion beam. Such ion beam geometry is of interest as a prototype of an on-board ion injector for contactless "ion shepherding" by service spacecraft to remove large space debris objects from geostationary orbits. The wedge shape of the ion beam increases its range.

[Experience with continuous epidural anesthesia used in the complex of combined anesthesia at gastropancreatoduodenal surgery].

The purpose of this study was to assess the experience with long-term epidural space administration of 1% lidocaine in combination with general anesthesia. Anesthesia based on the long-term epidural lidocaine administration in combination with general anesthesia versus total intravenous anesthesia based in ketamine and ataralgesia was analyzed. The anesthesia based on the long-term epidural lidocaine administration in combination with general anesthesia was shown to provide steady-state hemodynamic parameters and an adequate antinociceptive protection and to contribute to the early activation of patients.

[Rehabilitation of operated patients with diffuse polyposis of the large intestine].

In 1965 to 2000, the State Coloproctology Research Center operated on 584 patients for diffuse polyposis of the large intestine. A 18-year follow-up showed that metabolic disorders developed in 85% of cases due to the loss of large intestine that is important for maintaining homeostasis. The authors consider it necessary to continuously follow up the patients operated on for diffuse polyposis for timely diagnosis of occurring metabolic disorders and their correction.