The Simulation of Decontamination Works in Premises of the Research Reactor in NRC “Kurchatov Institute”

Author(s):  
Alexey Danilovich ◽  
Oleg Ivanov ◽  
Victor Potapov ◽  
Sergey Smirnov ◽  
Vyacheslav Stepanov

Application of remote sensing methods using a spectrometric collimated system allows obtaining information about features of a formation of radiation fields in contaminated premises. This information helps in a preparation of a phased plan for dismantling of contaminated equipment. When the survey of technological premises of the research reactor at the Russian Research Centre “Kurchatov institute” was conducted the remote controlled collimated spectrometric system was used [1]. With its help the scanning of surveyed premises were carried out. As a result of this work, the distribution pattern of radionuclides activity was restored. The simulation of decontamination works was carried out and maps of the distribution of activity and dose rate for surveyed premises were plotted and superimposed on its photo for situations before and after decontamination. The use of obtained results will allow significantly reduce radiation dose for staff at work on dismantling.

Author(s):  
Vyacheslav Stepanov ◽  
Victor Potapov ◽  
Alexey Safronov ◽  
Sergey Smirnov

The underwater spectrometric system for survey the bottom of material science multi-loop reactor MR ponds was elaborated. This system uses CdZnTe (CZT) detectors that allow for spectrometric measurements in high radiation fields. The underwater system was used in the spectrometric survey of the bottom of the MR reactor pool, as well as in the survey located in the MR storage pool of highly radioactive containers and parts of the reactor construction. As a result of these works irradiated nuclear fuel was detected on the bottom of pools, and obtained estimates of the effective surface activity detected radionuclides and created by them the dose rate.


2009 ◽  
Vol 51 (4) ◽  
pp. 275-289 ◽  
Author(s):  
V. I. Malkovsky ◽  
V. I. Velichkin ◽  
Yu. E. Gorlinsky ◽  
E. I. Vladimirova

2018 ◽  
Vol 170 ◽  
pp. 06005 ◽  
Author(s):  
V.E. Stepanov ◽  
A.G. Volkovich ◽  
V.N. Potapov ◽  
I.A. Semin ◽  
A.V. Stepanov ◽  
...  

From 2011 in the NRC "Kurchatov Institute" carry out the dismantling of the MR multiloop research reactor. Now the reactor and all technological equipment in the premises of the reactor were dismantled. Now the measurements of radioactive contamination in the reactor premises are made. The most contaminated parts of premises - floor and the ground beneath it. To measure the distribution of specific activity in the ground the CdZnTe detector (volume 500MM3) was used. Detector placed in a lead shielding with a slit collimation hole. The upper part of shielding is made movable to close and open the slit of the collimator. At each point two measurements carried out: with open and closed collimator. The software for determination specific activity of radionuclides in ground was developed. The mathematical model of spectrometric system based on the Monte-Carlo method. Measurements of specific activity of ground were made. Using the results of measurements the thickness of the removed layer of ground and the amount of radioactive waste were calculated.


Author(s):  
E O Adamov ◽  
V G Gnedenko ◽  
S M Dukarskii

The specific features of experimental mechanical engineering require production and technical systems (PTSs) to be highly flexible. At the same time, the necessity of engineering and production support for scientific research work and the development of new equipment with limited labour resources in the shortest period of time make it necessary to increase the level of PTS automation. The problem of flexible automation of PTSs can be solved by creating a computer integrated manufacture (CIM). The present article describes the experience of the creation of CIM for the production of high-technology experimental equipment at the Russian Research Centre (RRC) ‘Kurchatov Institute’. The system functions and the level of automation of various activities in the system are described. Methods of overcoming many troubles encountered during the creation of CIMs are shown.


2003 ◽  
Vol 145 (2) ◽  
pp. 181-187 ◽  
Author(s):  
A. A. Bykov ◽  
A. Yu. Gagarinski ◽  
E. S. Glushkov ◽  
Yu. A. Kravchenko ◽  
N. E. Kukharkin ◽  
...  

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Jan Piekarczyk

AbstractWith increasing intensity of agricultural crop production increases the need to obtain information about environmental conditions in which this production takes place. Remote sensing methods, including satellite images, airborne photographs and ground-based spectral measurements can greatly simplify the monitoring of crop development and decision-making to optimize inputs on agricultural production and reduce its harmful effects on the environment. One of the earliest uses of remote sensing in agriculture is crop identification and their acreage estimation. Satellite data acquired for this purpose are necessary to ensure food security and the proper functioning of agricultural markets at national and global scales. Due to strong relationship between plant bio-physical parameters and the amount of electromagnetic radiation reflected (in certain ranges of the spectrum) from plants and then registered by sensors it is possible to predict crop yields. Other applications of remote sensing are intensively developed in the framework of so-called precision agriculture, in small spatial scales including individual fields. Data from ground-based measurements as well as from airborne or satellite images are used to develop yield and soil maps which can be used to determine the doses of irrigation and fertilization and to take decisions on the use of pesticides.


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