EDO Responsibilities (8)

Question 1

The term “Operate” includes:

Answer 1

• Coupling and uncoupling the drive mechanism to the exposure device
• Locking and unlocking the exposure device
• All activities that take place when the sealed source assembly is unlocked inside the exposure device in the fully shielded position.

Question 2

Maximum quantity of a nuclear substance for anything other than industrial radiography

Answer 2

10,000Bq or 0.000000001GBq

Question 3

Exemption quantity of a nuclear substance for industrial radiography

Answer 3

740GBq to 3,700GBq

Question 4

Main responsibilities of an EDO

Answer 4

• Reasonable precautions to ensure safety
• protect the environment
• comply with safety measures
• familiar and abiding with CNSC regulations
• reporting incidents
• IMMEDIATELY reporting incidents where a exposure device is; lost, stolen, damaged, dose rate >2mSv/h while shielded, sealed source separated from the exposure device, source cannot be shielded
• fully co-operating with a CNSC officer

Question 5

Practices to ensure a lower radiation exposure

Answer 5

• aware of hazards
• inspecting equipment prior
• wear personal dosimeter + submitting doses
• posting warning signs + barriers
• continuously monitoring radiation area
• using temporary shielding + collimator
• use distance
• exposing and retracting is quick
• proper storage
• inspective equipment after exposure
• checking DRD periodically
• proper reaction to emergency situations
• use of safety equipment
• IMMEDIATE report of deviations from ALARA