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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

Induced activity of a concrete radiation shielding of cyclotron canyons on the stage of decommissioning

Vestnik MGSU 10/2014
  • Aliev Taib Yunusovich - design and construction company GC RANSTROY design engineer, design and construction company GC RANSTROY, 21-1 Akademika Pontryagina str., Moscow, 117041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Engovatov Igor' Anatol'evich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Construction of Thermal and Nuclear Power Plants, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-26-74; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Lavdanskiy Pavel Aleksandrovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Construction of Thermal and Nuclear Power Plants, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solov'ev Vitaliy Nikolaevich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Construction of Thermal and Nuclear Power Plants, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 106-113

One the new stage on nuclear medicine development there is a need to solve a number of tasks. The choice of radiation shield materials is an important task, because they to a large extend determine radiation safety in the process of operation and volumes of radioactive emissions in case of decommissioning. The stage of decommissioning is final in operation life of such installations. In the article the authors present an estimation of the producer of cyclotrons PETtrace 880 on radionuclides, which arise in the composition of concrete biological shield of cyclotron after decommissioning in Pet-centre of Russian Oncologic Scientific Center named after N.N. Blokhin. It was shown, that the data of the producer can lead to underestimating the volumes of radioactive waste. The tasks for further investigation on the problem are outlined. The authors defined the role of induced activity estimation on the stage of design and decommissioning of the cyclotrons for radiological safety. For designed objects the elemental composition of protecting constructions should be included in design documents. The choice of the composition should take in account the activation capacity of doping and tracing elements. The adequate estimation of induced activity should result in optimization of design and construction solutions. Such an approach will allow realizing the future stage of decomposition in more efficient and safe way by reducing radioactive waste and dose costs for staff and population.

DOI: 10.22227/1997-0935.2014.10.106-113

References
  1. Kuz'mina N.B. Chto takoe yadernaya meditsina [What is Nuclear Medicine]. Moscow, NIYaU MIFI Publ., 2012, 32 p. (in Russian)
  2. Kostylev V.A. Gor'kaya pravda o «modernizatsii» nashey atomnoy meditsiny [Bitter Truth on “Modernization” of our Noclear Medcine]. Meditsinskaya fizika [Medical Physics]. 2010, no. 4 (48), pp. 82—93. (in Russian)
  3. Wernick M.N., Aarsvold J.N., editors. Emission Tomography: The Fundamentals of PET and SPECT. 2004, Academic Press, 596 p.
  4. Telichenko V.I., Dorogan' I.A. Obespechenie kompleksnoy bezopasnosti ob"ektov meditsinskogo naznacheniya s istochnikami ioniziruyushchego [Ensuring Integrated Security for the Objects of Medical Purpose with Ionizing Sources]. Vestnik MGSU [Proceedings of Moscow State University of Structural Engineering]. 2014, no. 8, pp. 136—152. (in Russian)
  5. Bittner A., Jungwirth D., Bernard M., Gerland L., Brambilla G., Fitzpatrick J. Concepts Aimed at Minimizing the Activation and Contamination of Concrete. Decommissioning of Nuclear Power Plants. Proceedings of a European Conference held in Luxembourg, 22—24 May 1984. Springer Netherlands, 1984, pp. 371—388. DOI: http://dx.doi.org/10.1007/978-94-009-5628-5_32.
  6. Wang Feng, Cui Tao, Zhang Tianjue, Jia Xianlu, Zhang Xingzhi, Li Zhenguo. Radiation Shielding Design for Medical Cyclotron. Proceedings of IPAC2013, Shanghai, China. JACoW — Creative Commons Attribution, 2013, pp. 3339—3341.
  7. Kimura K., Ishikawa T., Kinno M., Yamadera A., Nakamura T. Residual Long-Lived Radioactivity Distribution in the Inner Concrete Wall of a Cyclotron Vault. Health Physics. 1994, vol. 67, no. 6, pp. 621—631.
  8. Shiomi T., Azeyanagi Y., Yamadera A., Nakamura T. Measurement of Residual Radioactivity of Machine Elements and Concrete on the Cyclotron Decommissioning. Journal of Nuclear Science and Technology. 2000, vol. 37, no. 1, pp. 357—361. DOI: http://dx.doi.org/10.1080/00223131.2000.10874906.
  9. SanPiN 2.6.1.2891—11. Trebovaniya radiatsionnoy bezopasnosti pri proizvodstve, ekspluatatsii i vyvode iz ekspluatatsii (utilizatsii) meditsinskoy tekhniki, soderzhashchey istochniki ioniziruyushchego izlucheniya [Sanitary Regulations and Standards SanPiN 2.6.1.2891—11. Requirements for Radiation Safety in the Process of Production, Operation and Decommissioning (Utilization) of Medical Technology Containing Sources of Ionizing Radiation]. Available at: http://ohranatruda.ru/ot_biblio/ot/2011/zak1196.pdf. Date of access: 28.09.2014. (in Russian)
  10. NP-038—11. Obshchie polozheniya obespecheniya bezopasnosti radiatsionnykh istochnikov [Norms and Requirements NP-038—11. General Requirements on Ensuring Safety of Radiation Sources]. Federal'nye normy i pravila v oblasti ispol'zovaniya atomnoy energii [Federal Norms and Requirements in the Field of Nuclear Energy Use]. Available at: http://files.stroyinf.ru/Data2/1/4293806/4293806203.files/0.gif. Date of access: 28.09.2014. (in Russian)
  11. Ob obrashchenii s radioaktivnymi otkhodami i o vnesenii izmeneniy v otdel'nye zakonodatel'nye akty Rossiyskoy Federatsii (s izmeneniyami i dopolneniyami). Federal'nyy Zakon Rossiyskoy Federatsii ot 11 iyulya 2011 g. № 190-FZ [On Dealing with Radiation Waste and on Changes in Separate Legislative Acts of the Russian Federation (with Amendments and Additions). Law of the Russian Federation from July 11, 2011 № 190-FZ]. Available at: http://base.garant.ru/12187848. Date of access: 28.09.2014. (in Russian)
  12. PETtrace — Unshielded Machine: Summary of Source Terms, Radiation Fields and Radwaste Production. Electronic Signature Information. GE Healthcare, 11/23/2005.Doc0100224, Rev:1, 1st ed., 21 p.
  13. Lavdanskiy P.A., Nazarov V.M., Stefanov N.I., Frontas'eva M.V. Navedennaya aktivnost' betona, primenyaemogo dlya zashchity yadernykh ustanovok [Induced Activity of Concrete Used for Shielding of Nuclear Facilities]. Atomnaya energiya [Nuclear Energy]. 1988, vol. 64, no. 6, pp. 419—422. (in Russian)
  14. Engovatov I.A., Mashkovich V.P., Orlov Yu.V. Pologikh B.G., Khlopkin N.S., Tsypin S.G. Radiatsionnaya bezopasnost' pri vyvode iz ekspluatatsii reaktornykh ustanovok grazhdanskogo i voennogo naznacheniya [Radiation Safety in the Process of Decommissioning of Reactor Facilities of Civil and Military Designation]. Moscow, Paims Publ., 1999, 300 p. (in Russian)
  15. Bylkin B.K., Engovatov I.A. Vyvod iz ekspluatatsii reaktornykh ustanovok [Decommissioning of Reactor Facilities]. Moscow, MGSU Publ., 2014, 228 p. (in Russian)

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Estimation of activity of air in the cyclotron bunker for PET diagnostics

Vestnik MGSU 1/2012
  • Voskanjan Karen Varuzhanovich - Moscow State University of Civil Engineering (MSUCE) Lecturer Department of Construction of Nuclear Facilities +7(926)1494825, Moscow State University of Civil Engineering (MSUCE), 26, Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Lavdanskiy Pavel Aleksandrovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Engineering, Professor, Department of Construction of Nuclear Facilities +7(926)9104051, Moscow State University of Civil Engineering (MSUCE), 26, Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solovev Vitaliy Nikolaevich - Moscow State University of Civil Engineering (MSUCE) Doctor of Engineering, Professor, Department of Construction of Nuclear Facilities +7(916)0143218, Moscow State University of Civil Engineering (MSUCE), 26, Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sichev Boris Sergeevich - Moscow Radiotechnical Institute of Russian Academy of Sciences Doctor of Engineering, Department head +7-(499)-616-39-54, Moscow Radiotechnical Institute of Russian Academy of Sciences, 132, Varshavskoe shosse, Moscow, Russia, 117519; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 119 - 121

The paper presents the results of the estimation of air activation by argon-41 induced by accelerated protons in 18 MeV Cyclotron. It has been demonstrated that activity of air is below significant minimum at proton current of 150 microamps.

DOI: 10.22227/1997-0935.2012.1.119 - 121

References
  1. Gordeev I.V., Kardashev D., Malyshev A.V. Jaderno-fizicheskie konstanty : spravochnik [Nuclear-physical constants : reference book], Gosatomizdat, Moscow, 1963.
  2. Beckurts K.H. and Wirtz K. Neutron Physics. Springer-Verlag NY.
  3. Price B.T., Horton C.C. and Spinney K.T. Radiation Shielding. Pergamon Press, New York, 1957.
  4. Broder D.L. and others. Beton v zashhite jadernyh ustanovok [Concrete in the protection of nuclear facilities. Ed. 2 nd.], Moscow, Atomizdat, 1973.

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