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Radiation Dose Management and Control

Dates & Locations

Overview

This course appeals to professionals at all levels who are involved on a daily basis with dose reduction initiatives.  This material extends far beyond the fundamental time-distance-shielding ALARA principles, and provides a comprehensive treatment of source term management, activity transport and radiation field characteristics.  The course content is customized and updated for the needs of individual plants.

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Course Outline

Part 1: Fundamentals

Radiation and Fundamentals

  • Radioactive Decay and Half-life
  • Types of Radioactive Decay and Emitted Radiation
  • Characteristics of Various Types of Radiation
  • Interaction of Radiation with Matter
  • Radiation Units
  • Coping with Radiation – ALARA Principles
  • General Principles of Radiation Shielding

General Principals and Instrumentation for Radiation Detection

  • Dose Rate Measurement
  • Measurement of Surface Contamination
  • Gamma Spectroscopy
  • Alpha/Beta Measurement
  • Tritium Measurement

Radiation Sources in CANDU Plants and Their Properties

  • Overview of CANDU Plant Systems
  • Radionuclides present in the Heat Transport System
  • Radionuclides present in the Moderator System

Part 2: Activity Transport Mechanisms for Radiation Field Growth in CANDU Plants

 

Primary Heat Transport System

  • Overview of Chemistry
  • Overview of Activity Transport
    • Cobalt Transport
    • Antimony Transport
    • Zirconium-Niobium Transport

Moderator System

  • Overview of Chemistry
  • Overview of Activity Transport

Measures for Controlling Source Term and Radiation Field Growth

  • pH Control of the Primary Heat Transport System
  • PHT Purification System
  • Restricting Cobalt and Antimony Ingress
  • Sampling of Coolant for Soluble Species and Crud
  • Monitoring and Removal of Failed Fuel
  • Trending of Component Activity and Dose Rates with Operating History
  • Monitoring of Alpha Activity
  • Database for Tracking Cobalt and Antimony Inventory
  • Estimation and Monitoring of Contribution to Source Term from Inventory
  • Characterization of Reactor Artifacts
  • Source Term Management by Zinc Addition into PHT System
  • Source Term Management by Decontamination
  • Source Term Management by Hot Conditioning
  • Hot Spots
  • Tritium Management

Part 3: Characteristics of Radiation Fields at Various Plant Components

 

Steam Generators

  • Variation between cold leg and hot leg
  • Effect of Draining
  • Effect of Nearest Neighbors

Reactor Vault

  • Variation across reactor face
  • Variation along the height of reactor face
  • Variation with distance from the reactor face
  • Horizontal and Vertical Feeder Cabinets
  • Shielding Considerations

Moderator Heat Exchangers

 

Modeling of Component Radiation Fields

  • MicroShield
  • Mercurad
  • Advanced Dose Exposure Planning Tool (ADEPT)

Shielding Materials and Concepts

  • Overview
  • Shielding Concepts
  • Shielding Applications in the Reactor Vault​

Who Should Attend

​This course is designed for:

  • Engineers and Scientists who need to make informed decisions e.g. scientific purchasing (high cobalt materials), chemistry about the science behind radiation dose control and activity transport
  • ALARA managers responsible for day-to-day operations
  • Health Physics and Radiation Protection personnel responsible for assessing radiation

Key Benefits

Gain an understanding of:

  • Dose radiation initiatives
  • Comprehensive treatment of source term management, activity transport and radiation field characteristics​

Instructors

  • Aamir Husain Ph.D


Contact Training


Training Locations

  • Toronto

    800 Kipling Ave., Unit 2
    Toronto, Ontario, M8Z 5G5

    Map


    416-207-6000

    416-207-6532


  • Pickering

    940 Brock Road, Unit 11
    Pickering, Ontario, L1W 2A1

    Map


    905-420-4242

    905-420-4125


  • Cincinnati

    7251 E. Kemper Road,
    Cincinnati, Ohio, 45249

    Map


    513-247-9039



 

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