2nd Meeting of the EMRAS II WG 1 Reference Methodologies for Controlled Discharges 2224 September 20

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2nd Meeting of the EMRAS II WG 1Reference
Methodologies for Controlled Discharges22-24
September 2009

• Adriana Curti
• Department of Scientific and Technical Support

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• Nuclear Regulatory Authority
  (ARN)
• Created as an autonomous body by the
  Nuclear Activity
• National Act (1997), reports to the
  President of Argentina
• Main objective
• To establish, develop and enforce a
  regulatory system
• applicable to all nuclear activities
  carried out in Argentina

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• Nuclear Regulatory Authority
  (ARN)
• Is empowered to regulate and control the nuclear
  activity
• with regard to
• Radiation and nuclear safety
• Physical protection
• Nuclear non-proliferation

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• Nuclear Regulatory Authority (ARN)
• Main goals of regulatory system
• to provide the population with an appropriate
• level of protection
• to ensure a reasonable degree of radiological
  and
• nuclear safety for nuclear activities in
  Argentina

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• Regulatory values in Argentina
• Annual individual dose limit 1 mSv
• Annual individual dose constraint, for design
  0.3 mSv

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• Reference Methodology for
• Radioactive Discharges Control
• IAEA Basic Safety Standards - Safety Series
  No.115 (1996)
• IAEA Regulatory Control of Radioactive
  Discharges
• to the Environment - Safety Guide WS-G-2.3
  (2000)
• IAEA Safety Report Series No.19 (2001)

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• Population Dose Assessment
• Main criteria (1)
• Actual or hypothetical critical group
• Critical Group only consumes locally produced
  foodstuff
• Site specific data

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• Population Dose Assessment
• Main criteria (2)
• Gaussian Plume Model for Atmospheric Dispersion
• (local developed code DOSAMED)
• One critical group for both discharge routes
• Maximally exposed individual (infant or adult)

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• Authorized discharge limits
• Conditions (1)
• requirements for optimization
• critical group doses do not exceed dose
  constraints
• well designed and well managed practice
• margin for operational flexibility and
  variability

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• Authorized discharge limits
• Conditions (2)
• annual and short term limits, in activity
• for each main radionuclide or groups of them
• for each release mode

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Main facilities in Argentina- 2 PHWR NPP-
Research and Production Reactor - Radioisotope
Production Plant - Mo-99 Production Plant -
Sealed Source Production Plant- 2 Research
Reactors- Small Research Laboratories

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