RUPAC2018 - List of Authors (Prokopenko, A.V.)

Paper	Title	Page
TUPSA45	Provision of Dose Homogeneity in Experiments for Developing Methods of Food Irradiation	236
	P.A. Bystrov IPCE RAS, Moscow, Russia V.P. Filippovich RRICT, Vidnoye, Russia A.V. Prokopenko MEPhI, Moscow, Russia S.N. Puchkov, N.E. Rozanov MRTI RAS, Moscow, Russia
	At present, interest is growing in the use of an electron beam irradiation for preserving food, which is a more efficient technology than gamma irradiation. This technology has long been applied to the disinfection of dry products having a low density. When processing objects having a density comparable to that of water, an inhomogeneous radiation dose profile may arise due to the insufficient penetrating power of the electron beam. This makes difficult to conduct correct studies. In IPCE RAS the research on the irradiation of food products and test tubes with model media on a radiation installation based on the UELV-10-10-C-70 accelerator with electron energy of 6-10 MeV is carried out. The sizes of irradiated objects often do not allow making an unambiguous conclusion about the uniformity of radiation doses in experiments. In order to find the distribution profile of doses in the objects of the study, the irradiation process is modeled using a specially modified computer code "BEAM SCANNING". In this program, the object is specified as the combination of primitive forms - a cone, a cylinder, a rectangle and a sphere, which is enough for modeling typical forms of objects, used in experiments. Calculations for cylinders and spheres simulating experimental objects-test tubes with model media and spherical products have been performed. The distributions of radiation doses in this objects are presented, methods for increasing the dose homogeneity in experiments are proposed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA45
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TUPSA47	Regularities of Inhibition of Conditionally Pathogenic Microflora Under the Influence of Accelerated Electron Beams	243
	A.V. Prokopenko MEPhI, Moscow, Russia V.P. Filippovich, A.Yu. Gracheova, N.V. Iluhina RRICT, Vidnoye, Russia A.V. Gordeev Burnasyan Federal Medical Biophysical Center, Federal Medical Biological Agency, Moscow, Russia Y.S. Pavlov IPCE RAS, Moscow, Russia
	Article is devoted to the study of the irradiation efficiency of model systems containing conditionally pathogenic microorganism by electron beams with energy of 7 and 10 MeV. The research on the effectiveness of inhibition of the initial degree of inoculation of the microorganisms E. coli and Salmonella were carried out. Irradiation doses up to 10 kGy performed at radiation-technological installations the A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS and State Research Center Burnasyan Federal Medical Biophysical Center. The results of the effective inhibition of initial contamination degree for the two samples, which model liquid and solid nutrient media, were obtained. It is shown that it is necessary to take into account not only the effectiveness of microorganism inhibition on specific products, but also the installation efficiency for a particular sample.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA47
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TUPSA48	The Study of Electron Beam Irradiation Effect on Multilayer Polymer Materials	246
	A.V. Prokopenko MEPhI, Moscow, Russia A.V. Gordeev Burnasyan Federal Medical Biophysical Center, Federal Medical Biological Agency, Moscow, Russia N.R. Kil'deeva, N.A. Sazhnev Russian State University named after A.N.Kosygin, Tech. Design. Art, Moscow, Russia N.E. Strokova MSU, Moscow, Russia V.T. Tarasyuk RRICT, Vidnoye, Russia
	The work is devoted to the investigation of a multilayer polyamide/polyethylene film material 80 mkm thick after its processing with an electron beam with an energy of 10 MeV and doses of 3 to 18 kGy in the Burnasyan Federal Medical Biophysical Center of the federal medical biological agency. Infrared spectroscopy was used to study the structure of a polymer material before and after irradiation of each layer. Atomic emission microscope was used to study the surface of a film. Evolution of the film surface characteristics can lead to a change in the barrier properties of film material used for packaging in the food industry. Investigation of polymer film treated with fast electrons showed stable results on dispersion at doses up to 18 kGy.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA48
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THPSC33	Radiation Installation and Accelerator UELV-10-10-C-70 Beam Parameters Control, Management and Registration System	472
	P.A. Bystrov, A. A. Kozlov, Y.S. Pavlov, I. Yakupov IPCE RAS, Moscow, Russia A.V. Prokopenko MEPhI, Moscow, Russia N.E. Rozanov MRTI RAS, Moscow, Russia
	Irradiation of medical products on radiation installations based on electron beam is a responsible task. To increase the quality of irradiation, continuous monitoring of the installation operation is necessary. The design of the system for monitoring and recording parameters of a radiation-technological installation based on the UELV-10-10-C-70 accelerator at IPCE RAS is presented. The monitoring system collects data in real time with number of sensors and performs its analysis and registration, informs about errors and stops the irradiation process in emergency situations. A simple solution for transferring data from sensors to a computer, which traditionally remains a bottleneck in technology, is proposed. An important task of the control system is to determine the parameters of the accelerator beam, such as pulse current and energy spectrum. Various methods, based on simple equipment, for determining the energy spectrum of accelerator beam, which can be used for continuous monitoring without interrupting the production process, are proposed. A computational model is developed for processing the results of measurements in these methods, using the computer code "Beam Scanning". In current version of the system the data about the conveyor movement, scanning system deflecting magnet current and accelerator state is collected. The beam spectrum sensor based on the Faraday cylinder is in the process of development.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC33
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Paper

Title

Page

Provision of Dose Homogeneity in Experiments for Developing Methods of Food Irradiation

236

P.A. Bystrov
IPCE RAS, Moscow, Russia
V.P. Filippovich
RRICT, Vidnoye, Russia
A.V. Prokopenko
MEPhI, Moscow, Russia
S.N. Puchkov, N.E. Rozanov
MRTI RAS, Moscow, Russia

At present, interest is growing in the use of an electron beam irradiation for preserving food, which is a more efficient technology than gamma irradiation. This technology has long been applied to the disinfection of dry products having a low density. When processing objects having a density comparable to that of water, an inhomogeneous radiation dose profile may arise due to the insufficient penetrating power of the electron beam. This makes difficult to conduct correct studies. In IPCE RAS the research on the irradiation of food products and test tubes with model media on a radiation installation based on the UELV-10-10-C-70 accelerator with electron energy of 6-10 MeV is carried out. The sizes of irradiated objects often do not allow making an unambiguous conclusion about the uniformity of radiation doses in experiments. In order to find the distribution profile of doses in the objects of the study, the irradiation process is modeled using a specially modified computer code "BEAM SCANNING". In this program, the object is specified as the combination of primitive forms - a cone, a cylinder, a rectangle and a sphere, which is enough for modeling typical forms of objects, used in experiments. Calculations for cylinders and spheres simulating experimental objects-test tubes with model media and spherical products have been performed. The distributions of radiation doses in this objects are presented, methods for increasing the dose homogeneity in experiments are proposed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA45

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA47

Regularities of Inhibition of Conditionally Pathogenic Microflora Under the Influence of Accelerated Electron Beams

243

A.V. Prokopenko
MEPhI, Moscow, Russia
V.P. Filippovich, A.Yu. Gracheova, N.V. Iluhina
RRICT, Vidnoye, Russia
A.V. Gordeev
Burnasyan Federal Medical Biophysical Center, Federal Medical Biological Agency, Moscow, Russia
Y.S. Pavlov
IPCE RAS, Moscow, Russia

Article is devoted to the study of the irradiation efficiency of model systems containing conditionally pathogenic microorganism by electron beams with energy of 7 and 10 MeV. The research on the effectiveness of inhibition of the initial degree of inoculation of the microorganisms E. coli and Salmonella were carried out. Irradiation doses up to 10 kGy performed at radiation-technological installations the A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS and State Research Center Burnasyan Federal Medical Biophysical Center. The results of the effective inhibition of initial contamination degree for the two samples, which model liquid and solid nutrient media, were obtained. It is shown that it is necessary to take into account not only the effectiveness of microorganism inhibition on specific products, but also the installation efficiency for a particular sample.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA47

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA48

The Study of Electron Beam Irradiation Effect on Multilayer Polymer Materials

246

A.V. Prokopenko
MEPhI, Moscow, Russia
A.V. Gordeev
Burnasyan Federal Medical Biophysical Center, Federal Medical Biological Agency, Moscow, Russia
N.R. Kil'deeva, N.A. Sazhnev
Russian State University named after A.N.Kosygin, Tech. Design. Art, Moscow, Russia
N.E. Strokova
MSU, Moscow, Russia
V.T. Tarasyuk
RRICT, Vidnoye, Russia

The work is devoted to the investigation of a multilayer polyamide/polyethylene film material 80 mkm thick after its processing with an electron beam with an energy of 10 MeV and doses of 3 to 18 kGy in the Burnasyan Federal Medical Biophysical Center of the federal medical biological agency. Infrared spectroscopy was used to study the structure of a polymer material before and after irradiation of each layer. Atomic emission microscope was used to study the surface of a film. Evolution of the film surface characteristics can lead to a change in the barrier properties of film material used for packaging in the food industry. Investigation of polymer film treated with fast electrons showed stable results on dispersion at doses up to 18 kGy.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA48

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC33

Radiation Installation and Accelerator UELV-10-10-C-70 Beam Parameters Control, Management and Registration System

472

P.A. Bystrov, A. A. Kozlov, Y.S. Pavlov, I. Yakupov
IPCE RAS, Moscow, Russia
A.V. Prokopenko
MEPhI, Moscow, Russia
N.E. Rozanov
MRTI RAS, Moscow, Russia

Irradiation of medical products on radiation installations based on electron beam is a responsible task. To increase the quality of irradiation, continuous monitoring of the installation operation is necessary. The design of the system for monitoring and recording parameters of a radiation-technological installation based on the UELV-10-10-C-70 accelerator at IPCE RAS is presented. The monitoring system collects data in real time with number of sensors and performs its analysis and registration, informs about errors and stops the irradiation process in emergency situations. A simple solution for transferring data from sensors to a computer, which traditionally remains a bottleneck in technology, is proposed. An important task of the control system is to determine the parameters of the accelerator beam, such as pulse current and energy spectrum. Various methods, based on simple equipment, for determining the energy spectrum of accelerator beam, which can be used for continuous monitoring without interrupting the production process, are proposed. A computational model is developed for processing the results of measurements in these methods, using the computer code "Beam Scanning". In current version of the system the data about the conveyor movement, scanning system deflecting magnet current and accelerator state is collected. The beam spectrum sensor based on the Faraday cylinder is in the process of development.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC33

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)