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Remediation of the high-level radwaste repositories at Russian Research Center “Kurchatov Institute”

Published online by Cambridge University Press:  06 June 2009

A. V. Chesnokov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
V. G. Volkov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
Y. A. Zverkov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
O. P. Ivanov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
A. V. Lemus
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
S. G. Semenov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
V. E. Stepanov
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
A. D. Shisha
Affiliation:
Russian Research Center “Kurchatov Institute”, 123182 Moscow, Russia
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Abstract

The paper presents peculiarities of organization and performance of activities on disposition of the high level activity radwaste repository located at the radwaste disposal site of the Russian Research Center “Kurchatov Institute” in Moscow. The process of the radwaste extraction from the repository is described in comparison with similar activities in other old repositories. Tools and equipment used for the radwaste extraction from the repository are listed. Conventional construction machines equipped with a hydraulic hammer or a clamshell were used for destruction of the concrete-encased radwaste mass and extraction of low-level radwaste. Intermediate- and high-level radwaste was extracted by remotely controlled robots operating inside the shielding structure. Gamma visor was used for detection of high-level radwaste or fragments in the mass concrete being destroyed and for pointing remotely controlled robots accordingly. The paper describes peculiarities of radiation monitoring in the course of operations on disposition of the repository. For rapid detection of changes in radiation conditions in the working areas, there was used a gamma locator with on-line transmission of its data to a PC and their processing. The same measuring and extraction equipment were used for remediation of high-level radwaste repository at the Gas Plant complexes.

Type
Research Article
Copyright
© EDP Sciences, 2009

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References

V.N. Potapov, S.M. Ignatov, O.P. Ivanov, et al. New Instruments and Radioactivity Measurement Methods Applied in Rehabilitation Activities at RWDS of RRC Kurchatov Institute. Proceedings of WM'05 Conference, Tucson, Arizona, February 27–March 3, 2005, CD-ROM.
O.P. Ivanov, V.E. Stepanov, V.G. Volkov, et al. Application of Portable Gamma Camera During an Extraction of the Radioactive Wastes from Temporal Storage at Territory of RRC Kurchatov Institute, ICEM'05/DECM'05 Conference, Glasgow, Scotland, September 4–8, 2005, Session No: 11, ICEM05-ID: 1197, –p. 84.
O.P. Ivanov, V.E. Stepanov, V.G. Volkov, A.G. et al. New Portable Gamma-Camera for Nuclear Environment and Its Application at Rehabilitation Works, Book of abstracts, Nuclear Science Symposium, Rome, 2004 IEEE Conference, p. 89.
V.N. Potapov, N.K. Kononov, O.P. Ivanov. et al. A Gamma Locator for Remote Radioactivity Mapping and Dose Rate Control, Book of abstracts, Nuclear Science Symposium, Rome 2004 IEEE Conference, p. 88.
V.G. Volkov, V.N. Potapov, O.P. Ivanov, et al. New Radiation Monitoring Devices and Systems and Their Use in Rehabilitation Operations at RRC KI Temporary Radwaste Storage Area. Proceedings of the 7th International Conference “Safety of Nuclear Technologies. Radwaste Management”, St. Petersburg, Russia, 27 September–1 October, 2004, ProAtom Publishers, 2004, p. 371–378.

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