Gamma Shooting of the Territory of Municipal Landfill of the Dushanbe City

D A Abdushukurov,B N Mamadaliev,G B Anvarova,D V Bondarenko,D F Stotsky

doi:10.5923/j.ije.20120205.03

Abstract

The rearrangement of Municipal landfill of Dushanbe city has begun; in this connection the gamma and neutron shooting of territory of landfill has been made. The landfill territory has been divided into 128 routes, and it has been conducted 5691 measurements of gamma background. The gamma background in territory is defined by background from environing soils 0.18±0.02 µZv/h and background from low-act ive wastes 0.11±0.02 µZv/h. During conducting gamma shooting the ownerless gamma source Cesiu m-137, with equivalent dose rate 40 µZv/h, has been detected. For localization and source extraction specialists of Co mmittee on emergency situations under government RT and Agency on Radiation and Nuclear Safety at Academy of Sciences RT have been invited. Fluency of neutrons on surface does not exceed background values and that testifies about absence of neutron sources.

Highlights

After collapse of the USSR the centralized monitoring system over storage and disposal of radioactive sources in Tajikistan has been destroyed
For the purpose of search of ownerless radioactive sources IAEA financed the project of the Agency on Radiation and Nuclear Safety
Befo re realizat ion of these works there was a necessity of conducting gamma and neutron shooting of a surface of a landfill, for the purpose of detection of illegally buried of ownerless sources

Summary

Introduction

After collapse of the USSR the centralized monitoring system over storage and disposal of radioactive sources in Tajikistan has been destroyed. During the civil war years and after it there could be events of losses or illegal disposal of radioactive nuclear sources at the Republic factories. For the purpose of search of ownerless radioactive sources IAEA financed the project of the Agency on Radiation and Nuclear Safety. Befo re realizat ion of these works there was a necessity of conducting gamma and neutron shooting of a surface of a landfill, for the purpose of detection of illegally buried of ownerless sources. Http://www.arpansa.gov.au [9] Oak Ridge Institute for Science and Education (ORISE). “Survey Procedures M anual for the Environmental Survey and Site Assessment Program”. [11] Oak Ridge Institute for Science and Education. “Quality Assurance M anual for the Environmental Survey and Site Assessment Program”.

Methods

Results

Conclusion