Radiation Safety

1. MODULE 16- RADIATION
SAFE COMPANY

2. IONISING RADIATION I
Ionising radiation can change cells within a substance! But it has also
useful functions and a very energetic value.
• Types: alpha, beta and gamma radiation
• Radioactive substances emit ionising rays. Strength depends on the
radioactive substance type and the distance from the source.
• Not always result of human actions. Some natural materials emit
spontaneous ionising radiation.

3. IONISING RADIATION II
• Risks: Radiation can damage cells.
• General measures: as much distance as possible (perimeter),
reducing exposure duration, radiation source must be protected,
work permits and warning signs.
• Professional exposure: employees must carry a dosimeter (constant
measures and registers), rotation, regular medical examinations,
radiation specialists in work place.

4. NON-IONISING RADIATION
Non-ionising radiation can enter skin and/or eyes causing harm!
• Ultraviolet radiation: Employees working outdoors. Acute (burning)
or chronic risks (skin cancer).
• Protection: appropriate clothing, sunglasses and sun oil.
• Infrared radiation: Risks for skin (burning) and eyes (cataracts,
retinal burns).
• Protection: protective clothing, protective glasses or goggles.