###### Abstract
Another fundamental difference between the proposed technology and known optical therapeutic technologies is associated with the high intensity of impact on biological objects: the characteristic values of the pulsed irradiance of treated surfaces are 10-100 W/cm\({}^{2}\), with a maximum of 1...10 kW/cm\({}^{2}\), which is several orders of magnitude higher than the irradiation level of intensity for objects using traditional sources of UV radiation. A high pulse intensity provides conditions for a significant excess in the rate of direct processes (in this case, destructive to biomolecules) over the opposite processes (relaxation, recombination, repair), increasing the resulting quantum yield of photochemical reactions and leading to a decrease in the threshold energy doses necessary to achieve a biological effect. On the one hand, this ensures the rapidity of disinfection processes and medical and preventive procedures, and on the other, it potentially increases the level of safety in the use of UV radiation. In addition, at high pulsed intensities of exposure, along with photochemical mechanisms of cell destruction, it is possible to implement additional nonstationary photodynamic [32; 33] and photothermal [34; 35] destruction processes in microflora, which are fundamentally unfeasible after exposure to traditional continuous-wave radiation sources. The results of numerous experimental studies conducted in recent years both abroad [32; 33; 34; 35; 36; 37; 38; 39; 40] and in our country [41; 42; 43; 44; 45; 46; 47] confirm the expected effects. In particular, it has been shown that broad-spectrum, high-intensity pulsed UV radiation has unique biocidal properties: where traditional disinfection methods using standard bactericidal mercury lamps reduce the level of infection by a factor of thousand, this technology reduces the concentration of microbes by several million times or even more [34; 36; 42; 45]. At the same time, all types of pathogenic microflora are suppressed, including the most resistant forms of spore microorganisms, and viruses, including those resistant to antibiotics. The process remains efficient at extremely high levels of initial microbiological contamination. For several pathogens, a significant (up to 30 times) reduction in the threshold energy of doses required to provide a given level of decontamination or achieve a sterilizing effect has been experimentally established [40; 42; 45]. In addition to the physical features of flash xenon lamps noted above, experience shows that they also have several fundamentally important technical and operational properties, such as the ability to operate in a wide range of ambient temperatures (from minus 60 to plus 60 degrees Celsius), instant readiness for operation, the ability to operate one lamp in a wide range of average power (from fractions of a watt to kilowatts) without changing the spectral characteristics, environmental friendliness (no toxic substances (mercury, etc.) are used), etc. Currently, the use of pulsed xenon lamps as a biocidal tool is becoming more widespread. Initially, technologies based on pulsed xenon lamps were considered a means of quickly eliminating the consequences of terrorist acts using bioagents [19; 40]. Currently, such technologies are being actively studied for use in the food industry to increase the shelf life of food products, improve product quality, decontaminate packaging, etc. [36; 37; 38; 39]. In the medical field, pulsed xenon lamps are currently used in installations for air and surface disinfection [44; 45; 47; 48]. Thus, there are currently objective scientific and medical-technical prerequisites for the development of a new generation of medical devices for the treatment and prevention of wounds and wound infections based on using pulsed high-intensity optical irradiation technology on biological objects.