OPS 028 Radiation

Question 1

Safety Critical

Operational Considerations:

IC to DRA giving consideration to:-

Answer 1

• Radiation monitoring (EPD) Rados Survey meter
• Early Informative
• Site appliances upwind initially 45m away
• What is the degree of urgency?
• PPE levels, Fire Kit, BA & EPD’s
• Consider LLGTS or PRPS (but will slow down personnel = more time in risk area.
• Police CIRT team
• Do not commit crews until sufficient resources available
• Use SSRI, all known premises should have a current 7 (2)d

Question 2

Safety Critical

Operational Considerations:

Early in formative should contain:

Answer 2

• Radiation suspected followed by radiation involved
• sealed
• strength of source
• shielded or unshielded
• physical state - gas, solid, liquid
• location and description
• Type of emitter - alpha, beta, gamma

Question 3

Safety Critical

Operational Considerations:

IC’s should seek advice from:-

Answer 3

• On site specialists
• NAIR/RADSAFE via control
• Bureau Veritas - (HFRS Radiation protection advisor RPA)

Question 4

Safety Critical

Operational Considerations:

External Radiation - in order to protect personnel use the following methods:-

Answer 4

• Time - keep exposure time as short ass possible
• Distance - keep as far away as possible
• Shielding - shield body from source
• Exposure to any dose must be minimised using the maxim (ALARP)
• Any recorded absorbed dose must be detailed on HFRS 73

Question 5

Safety Critical

Operational Considerations:

How to prevent the intake of radioactive material:

Answer 5

• Inhalation - use BA
• Ingestion - do not eat/drink/smoke at incident
• Cuts/grazes - withdraw from the area
• any person who is suspected of having received internal exposure must be seen by a qualified physician.

Question 6

Safety Critical

Operational Considerations:

Decontamination methods following exposure at a radiation incident:-

Answer 6

• sealed source - Decon not required if intact
• unsealed source - Full Decon
• Emergency. -Wet Decon (contain run off)