Application of Underwater Spectrometric System for Survey of Ponds of the MR Reactor (NRC Kurchatov Institute)

2013 ◽  
Author(s):  
Vyacheslav Stepanov ◽  
Victor Potapov ◽  
Alexey Safronov ◽  
Sergey Smirnov
Keyword(s):  
Kurchatov Institute ◽  
High Radiation ◽  
Effective Surface ◽  
Radiation Fields ◽  
Reactor Construction ◽  
Spectrometric Measurements ◽  
Reactor Pool ◽  
Czt Detectors ◽  
Spectrometric System ◽  
Irradiated Nuclear Fuel

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.

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

2013 ◽  
Author(s):  
Alexey Danilovich ◽  
Oleg Ivanov ◽  
Victor Potapov ◽  
Sergey Smirnov ◽  
Vyacheslav Stepanov
Keyword(s):  
Remote Sensing ◽  
Research Reactor ◽  
Research Centre ◽  
Kurchatov Institute ◽  
Radiation Fields ◽  
Before And After ◽  
Reduce Radiation Dose ◽  
Spectrometric System ◽  
Remote Sensing Methods ◽  
Russian Research

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.

Stabilization of the Chernobyl Shelter

2001 ◽  
Vol 215 (1) ◽  
pp. 1-11
Author(s):  
I. D. Heriot
Keyword(s):  
Risk Management ◽  
Project Management ◽  
Financial Support ◽  
Structural Instability ◽  
High Radiation ◽  
Implementation Plan ◽  
Technology Project ◽  
Radiation Fields ◽  
Environmental Threat ◽  
The Many

The Shelter enclosing the wrecked Chernobyl Unit 4 reactor continues to deteriorate posing an increasing environmental threat due to structural degradation and the ingress of water. The uncertain nature of the wreckage within the Shelter combined with structural instability and high radiation fields make the remediation a very challenging task. A decision-based approach known as the Shelter Implementation Plan (SIP) has been adopted as a way of resolving the many difficulties. This plan has the financial support of more than 20 nations under the Chernobyl Shelter Fund (CSF) which is administrated by the European Bank for Reconstruction and Development (EBRD). Project execution will pose a number of unique problems in technology, project management, contracting, nuclear regulation and risk management.

Experience of Application of New Remote Controlled Instruments for Scanning of Distribution of Radioactive Contamination in Rooms With High Dose Rate

2011 ◽  
Author(s):  
V. E. Stepanov ◽  
A. S. Danilovich ◽  
O. P. Ivanov ◽  
V. N. Potapov ◽  
S. V. Smirnov ◽  
...  
Keyword(s):  
Remote Control ◽  
Radioactive Contamination ◽  
Gamma Camera ◽  
Background Radiation ◽  
High Dose Rate ◽  
High Dose ◽  
Kurchatov Institute ◽  
Nuclear Facilities ◽  
High Level ◽  
Spectrometric System

When carrying out the decommissioning of nuclear facilities is necessary to measure the distribution of radioactive contamination in the rooms and the equipment at high levels of background radiation. In the decommissioning of the reactor in the MR NRC “Kurchatov Institute” for such problems is developed and applied a few special systems with remote control. For a survey of high-level objects used mounted on the robot radiometric system. To determine the composition of pollutants and use a portable collimated spectrometric system. To obtain a detailed distribution of contamination of used remote-controlled gamma camera.

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