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Training Material EHS&Q/ WB/ S0391E​ Access to C2 and R2+ Areas2024

AtkinsRéalis Sellafield Ltd

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This visual content learning material is a proposal from AtkinsRéalis to Sellafield LTD. We have developed a concise interactive material to improve the Access to C2/R2+ Areas course.Learning Objectrives:

  • Radiation
  • Legality
  • Equipment
  • Contamination
  • Safety
  • Area Access
  • Alarm
You can read each section several times before completing the assessment material and revisit at any time.

Introduction

Alarms

Contamination

Legality

Safety

Radiation

Index

Equipment

You will also understand:

  • The effects of exposure to radiation ​
  • Identify who are radiation workers and their roles and responsibilities​
  • Distinguish types of radiation workers (classified, monitored, visitors) ​
  • Understand further training requirements for individuals

By the end of this section you will be able to:

  • Define radiation
  • Identify types of radiation ​
  • Understand Quality factors ​
  • Apply Dose units ​
​​

Introduction to Radiation

Objectives

There are two kinds of radiation: non-ionizing radiation and ionizing radiation.​ ​ Non-ionizing radiation - heat, light, radio waves and UV. ​ Ionizing radiation – Alpha, beta, gamma and neutron.​ Ionising radiation is harmful to the body. ​ ​

What is radiation ?

Radiation

Sources of radiation

Radiation

Table summarising sources of radiation and their characteristics.

Radiation Sources

This page has a lot of interactivity. Please make sure you click each audio file and info link to obtain all content.

Understanding Dose Units

Radiation

Table summarising radiation termonolgy, related unit measurement and description of each.

Dose Units

This page has a lot of interactivity. Please make sure you click each audio file and info link to obtain all content.

  • Alpha - α
  • Distance travelled in air (2-3cm)
  • Shielded by paper/ skin (dangerous if ingested)
  • Quality factor - 20

Although alpha particles can be shielded by minimal materials they are still very dangerous (Ionising). If ingested Alpha particles are very damaging to cells due to their size and strength, with a potential of causing cancer. This is signified by a quality factor of 20 (1-20, 20 being the highest severtiy)

Alpha Radiation / Particles