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System of control of radioactively contaminated metal scrap in Lithuania. Gendrutis Mork ū nas Radiation Protection Centre Kalvarijų 153, LT-08221, Vilnius, Lithuania genmo@takas.lt. General situation. all the practices except for irradiation available

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System of control of radioactively contaminated metal scrap in Lithuania

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System of control of radioactively contaminated metal scrap in lithuania l.jpg

System of control of radioactively contaminated metal scrap in Lithuania

Gendrutis Morkūnas

Radiation Protection Centre

Kalvarijų 153, LT-08221, Vilnius, Lithuania

genmo@takas.lt


General situation l.jpg

General situation

  • all the practices except for irradiation available

  • radioactive sources are imported and spent sources exported

  • radiation protection infrastructure in place:

    • notification about intentions to import, export and transport radioactive sources,

    • licensing of practices,

    • keeping of national register of sources,

    • ensuring of physical security of sources,

    • use of safe procedures during their transportation,

    • treatment of radioactive waste and spent sources


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Legislation

  • control of movement of metal scrap

  • detection of radioactivity in metal scrap

  • detection of radioactivity on the national borders

  • dealing with found radioactive sources,

  • radiation protection

  • other related legislation


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Technical measures

  • monitoring of metal scrap in scrap yards, metal scrap and final products in reprocessing plants

  • monitoring of radioactivity on the borders

  • procedures when radioactive sources are detected

  • more detailed analysis with the aim of characterization of sources in Lithuania and abroad

  • training of involved staff


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Items already detected

  • contaminated metal

  • materials containing increased concentrations of natural radionuclides

  • sources, previously used in practices

  • commodities containing increased amounts of radionuclides

  • contaminated vehicles have been found

    Patients released after nuclear medicine procedures are triggering monitoring systems


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Training

  • target groups are identified

  • training shall address specific needs of these groups

  • more attention should be given to selection of trainees

  • training should help to optimize the whole system

  • international training courses (due to co-operation) might be useful


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International cooperation

  • for information exchange

  • international training courses or national ones with lecturers from other countries

  • existing networks of exchange of information (e.g.,CEEAN) might be used

  • common efforts in more detailed characterization of found materials


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Observations and conclusions

  • the system should include both general and specific measures

  • training should address different categories of persons involved

  • training should help to optimize the system

  • it has to be of international character


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Observations and conclusions

  • monitoring equipment which meets the needs and complies with competence of users should be further developed

  • attention should be paid to quality assurance and particularly elaboration and validation of monitoring techniques

  • international cooperation is important

  • available resources should be effectively used


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